metal-organic compounds
Bis[1,3-bis(2,4,6-trimethylphenyl)imidazolium] bis(μ-cis-1,2-diphenylethene-1,2-dithiolato-κ2S,S′:κS)bis[(cis-1,2-diphenylethene-1,2-dithiolato-κ2S,S′)iron(III)] dimethylformamide disolvate
aDepartment of Chemistry, Wright State University, 3640 Colonel Glenn Hwy., Dayton, OH 45435, USA
*Correspondence e-mail: selvakumar.jayaraman@wright.edu
The molecular structure of the solvated title salt, (C21H25N2)2[Fe2(C14H10S2)4]·2C3H7NO reveals that the anion is situated on a crystallographic inversion center in the triclinic P. The title compound crystallizes utilizing a network of weak π-stacking interactions of phenyl rings pertaining to the dithiolene unit. Moreover, the acidic imidazolium H atoms [N—C(H)—N] display non-classical hydrogen-bonding interactions of the C—H⋯O type to the oxygen atoms of the N,N-dimethyl formamide solvent, and hydrogen atoms on the backbone of imidazolium rings display weak C—H⋯S interactions with the dithiolene sulfur atoms.
Keywords: crystal structure; imidazolium salt; iron bis(dithiolene) complexes; reduced iron bis(dithiolene) complexes.
CCDC reference: 2319850
Structure description
The iron bis(dithiolene) dimer, [Fe(S2C2Ph2)2]2 (Schrauzer et al., 1964), displays a rich electrochemistry and is generally characterized by two successive ligand-based reduction processes pertaining to the dithiolene units (Patra et al., 2006; Ray et al., 2005; Yu et al., 2007). Despite their facile redox processes, the solid-state structure of the chemically reduced species [Fe(S2C2Ph2)2]2− have not yet been reported. Recently, we reported several five-coordinate iron bis(dithiolene) complexes with N-heterocyclic carbene ligands [Fe(S2C2Ph2)2(NHC)] [NHC = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene; Selvakumar et al., 2021]. Under electrochemical conditions, these complexes undergo two successive one-electron reductions, with the first reduction being reversible whereas the second reduction is irreversible. This irreversibility is attributed to the cleavage of the coordination of the N-heterocyclic carbene ligand to the respective iron atom (Selvakumar et al., 2021). To isolate and study the solid-state structure of [Fe(S2C2Ph2)2NHC]−, we reduced the neutral complex [Fe(S2C2Ph2)2(NHC)] with a stoichiometric amount of cobaltocene. The reduction process resulted in the decomplexation of NHC and the formation of [Fe(S2C2Ph2)2]22– with two NHC[H] cations serving as counter-ions. Herein, we disclose the molecular structure and solid-state structural characteristics of [Fe(S2C2Ph2)2]2[NHC[H]]2 (Fig. 1).
Since the reductions of the substrate complex are predominantly ligand-based (Patra et al., 2006), the bis(dithiolene) unit of [(Fe(S2C2Ph2)2(NHC)] undergoes a conversion from thienyl radical monoanions (·S–C=C–S−) to fully reduced 1,2-ene-dithiolate (−S–C=C–S−). The C—S bond lengths in the title compound [C1—S1 = 1.762 (2) Å, C2—S2 = 1.770 (3) Å, C3—S3 = 1.764 (2) Å, C4—S4 = 1.757 (2) Å] are in agreement with pure C—S single-bond lengths. The C1—C2 [1.353 (3) Å] and C3—C4 [1.352 (3) Å] bond lengths are consistent with a double-bond character. Hence, the interpretation of the ligands as 1,2-ene-dithiolates is confirmed.
Analysis of the molecular structure revealed no classical hydrogen bonds. However, the presence of non-classical hydrogen-bonding interactions involving C—H⋯O and C—H⋯S interactions (Fig. 2) is observed. The C—H⋯O and C—H⋯S interactions are detailed in Table 1. Moreover, the molecules are also interconnected by intermolecular C⋯C interactions of the phenyl rings pertaining to the dithiolene units (Fig. 3). All these interactions combine to yield a tri-periodic molecular structure.
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A CSD structure search for the core [Fe(S2C2Ph2)2]22– revealed no hits. However, structurally similar compounds have been reported in the literature, viz. [Fe(S2C2(C6H4-p-OCH3)2)2]22− (Yu et al., 2007), [Fe(S2C6H4)2]2− (Ray et al., 2005), and [Fe(S2C6H3(o-CH2CH3))2]2− (Ray et al., 2005). The Fe—S, C—S, and C—C bond lengths for [Fe(S2C2Ph2)2]2[NHC[H]]2 are in agreement with those in the reported compounds.
Synthesis and crystallization
Cobaltocene (Cp2Co) (3.8 mg, 0.02 mmol) in 1 ml of N,N-dimethyl formamide (DMF) was added dropwise to a stirred solution of [(Fe(S2C2Ph2)2(NHC)] (17 mg, 0.02 mmol; NHC = 1,3-dimesitylimidazol-2-ylidene) in 2 ml of DMF. This addition induced a colour change of the solution from dark green to brown. After stirring 30 min at 25°C, the reaction mixture was filtered through a celite plug. The filtrate was subjected to vial in a vial for crystallization according to the vapour diffusion method. Brown plate-like shaped crystals of the title compound [(Fe(S2C2Ph2)2)2][NHC(H)]2 were obtained by diffusion of toluene into the brown reaction mixture containing DMF as the solvent (yield: 11 mg, 60%).
Refinement
Crystal data, data collection and structure .
details are summarized in Table 2Structural data
CCDC reference: 2319850
https://doi.org/10.1107/S2414314623010830/im4022sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2414314623010830/im4022Isup2.hkl
(C21H25N2)2[Fe2(C14H10S82)4]·2C3H7NO | Z = 2 |
Mr = 919.12 | F(000) = 967.9950 |
Triclinic, P1 | Dx = 1.289 Mg m−3 |
a = 12.4019 (14) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 14.8205 (19) Å | Cell parameters from 9889 reflections |
c = 14.9762 (18) Å | θ = 2.5–24.9° |
α = 105.936 (4)° | µ = 0.54 mm−1 |
β = 113.662 (3)° | T = 100 K |
γ = 94.486 (4)° | Prism, black |
V = 2368.2 (5) Å3 | 0.57 × 0.28 × 0.2 mm |
Bruker APEXII CCD diffractometer | Rint = 0.054 |
Graphite monochromator | θmax = 25.0°, θmin = 2.8° |
φ and ω scans | h = −14→14 |
45150 measured reflections | k = −17→17 |
8282 independent reflections | l = −17→17 |
6984 reflections with I ≥ 2u(I) |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | 88 constraints |
R[F2 > 2σ(F2)] = 0.033 | H-atom parameters constrained |
wR(F2) = 0.090 | w = 1/[σ2(Fo2) + (0.0383P)2 + 1.4785P] where P = (Fo2 + 2Fc2)/3 |
S = 1.07 | (Δ/σ)max < 0.001 |
8282 reflections | Δρmax = 0.54 e Å−3 |
558 parameters | Δρmin = −0.40 e Å−3 |
Refinement. Aromatic C–H H atoms were added using the riding-model approximation with C–H bond lengths of 0.95 Å with Uiso (H) = 1.2 Ueq(CarH). Methyl (CH3) H atoms were treated as a rotating group and added using the riding-model approximation to the carbon atom to which they are attached. Methyl H atoms were fixed at a distance of 0.98 Å with Uiso (H) = 1.5 Ueq(CH3). The title compound co-crystallized with one solvent molecule (N, N-dimethyl formamide) per asymmetric unit of the unit cell. |
x | y | z | Uiso*/Ueq | ||
Fe1 | 0.62110 (3) | 0.564448 (19) | 0.55925 (2) | 0.01723 (9) | |
N1 | −0.17750 (16) | −0.23003 (12) | −0.57291 (14) | 0.0258 (4) | |
S2 | 0.47668 (4) | 0.56334 (3) | 0.40931 (4) | 0.01803 (12) | |
S1 | 0.70483 (4) | 0.47741 (3) | 0.46806 (4) | 0.01933 (12) | |
S3 | 0.57529 (4) | 0.69570 (3) | 0.63988 (4) | 0.01979 (12) | |
S4 | 0.80666 (5) | 0.61643 (4) | 0.68790 (4) | 0.02292 (12) | |
O1 | 0.89705 (16) | 0.04702 (13) | 0.41971 (15) | 0.0425 (4) | |
C32 | −0.12009 (19) | −0.28038 (14) | −0.63316 (17) | 0.0250 (5) | |
C41 | −0.2576 (2) | −0.02146 (15) | −0.45253 (18) | 0.0272 (5) | |
N3 | 0.76879 (17) | 0.14028 (13) | 0.35900 (15) | 0.0304 (4) | |
C29 | −0.16751 (19) | −0.13524 (15) | −0.54035 (17) | 0.0256 (5) | |
H29 | −0.12006 (19) | −0.09024 (15) | −0.54958 (17) | 0.0307 (6)* | |
C31 | −0.2557 (2) | −0.27257 (17) | −0.5440 (2) | 0.0356 (6) | |
H31 | −0.2783 (2) | −0.33792 (17) | −0.5570 (2) | 0.0428 (7)* | |
C30 | −0.2928 (2) | −0.20136 (17) | −0.4936 (2) | 0.0381 (6) | |
H30 | −0.3458 (2) | −0.20830 (17) | −0.4650 (2) | 0.0458 (7)* | |
C51 | 0.7468 (3) | 0.0959 (2) | 0.2527 (2) | 0.0532 (8) | |
H51a | 0.7881 (16) | 0.1389 (6) | 0.2334 (5) | 0.0799 (11)* | |
H51b | 0.7758 (17) | 0.0374 (8) | 0.2456 (4) | 0.0799 (11)* | |
H51c | 0.6618 (3) | 0.0819 (14) | 0.2086 (3) | 0.0799 (11)* | |
C28 | 0.7159 (2) | 0.83634 (16) | 0.93701 (17) | 0.0301 (5) | |
H28 | 0.7528 (2) | 0.78961 (16) | 0.96034 (17) | 0.0362 (6)* | |
C47 | −0.4322 (2) | −0.0556 (2) | −0.6289 (2) | 0.0439 (6) | |
H47a | −0.5065 (8) | −0.0346 (9) | −0.6550 (5) | 0.0658 (10)* | |
H47b | −0.3904 (7) | −0.0505 (11) | −0.6697 (3) | 0.0658 (10)* | |
H47c | −0.4488 (14) | −0.1212 (3) | −0.6326 (3) | 0.0658 (10)* | |
C20 | 1.1390 (2) | 0.83725 (18) | 1.05341 (17) | 0.0335 (6) | |
H20 | 1.2120 (2) | 0.86338 (18) | 1.11234 (17) | 0.0402 (7)* | |
C3 | 0.70124 (19) | 0.75091 (14) | 0.76107 (15) | 0.0216 (4) | |
C38 | −0.2435 (3) | −0.2183 (2) | −0.7778 (2) | 0.0441 (7) | |
H38a | −0.3109 (8) | −0.2294 (11) | −0.7631 (13) | 0.0662 (10)* | |
H38b | −0.2070 (5) | −0.1510 (2) | −0.7483 (11) | 0.0662 (10)* | |
H38c | −0.2706 (13) | −0.2388 (10) | −0.8514 (3) | 0.0662 (10)* | |
C46 | −0.1792 (2) | 0.03704 (17) | −0.35228 (18) | 0.0311 (5) | |
C2 | 0.52106 (18) | 0.50821 (14) | 0.31254 (15) | 0.0186 (4) | |
C6 | 0.7759 (2) | 0.41881 (16) | 0.28058 (17) | 0.0270 (5) | |
H6 | 0.8338 (2) | 0.46730 (16) | 0.33885 (17) | 0.0324 (6)* | |
C12 | 0.5064 (2) | 0.55707 (18) | 0.16129 (18) | 0.0341 (5) | |
H12 | 0.5901 (2) | 0.57460 (18) | 0.19153 (18) | 0.0409 (7)* | |
C42 | −0.3549 (2) | 0.00652 (17) | −0.51813 (19) | 0.0307 (5) | |
C40 | 0.0357 (3) | −0.43837 (19) | −0.8171 (2) | 0.0436 (7) | |
H40a | 0.1087 (9) | −0.4529 (12) | −0.7738 (2) | 0.0654 (10)* | |
H40b | −0.0216 (7) | −0.4971 (6) | −0.8638 (10) | 0.0654 (10)* | |
H40c | 0.0528 (16) | −0.4022 (6) | −0.8559 (11) | 0.0654 (10)* | |
C4 | 0.80308 (19) | 0.71629 (14) | 0.78183 (15) | 0.0220 (4) | |
C48 | −0.3211 (3) | 0.2570 (2) | −0.3390 (3) | 0.0611 (9) | |
H48a | −0.2748 (16) | 0.3033 (3) | −0.3510 (16) | 0.0917 (14)* | |
H48b | −0.4052 (5) | 0.2563 (5) | −0.3746 (13) | 0.0917 (14)* | |
H48c | −0.2977 (19) | 0.2740 (7) | −0.2661 (4) | 0.0917 (14)* | |
C45 | −0.2011 (2) | 0.12767 (17) | −0.31768 (19) | 0.0364 (6) | |
H45 | −0.1490 (2) | 0.16899 (17) | −0.25154 (19) | 0.0437 (7)* | |
C34 | 0.0128 (2) | −0.38324 (16) | −0.65194 (18) | 0.0294 (5) | |
H34 | 0.0680 (2) | −0.41932 (16) | −0.62582 (18) | 0.0353 (6)* | |
C13 | 0.4389 (3) | 0.5702 (2) | 0.0680 (2) | 0.0465 (7) | |
H13 | 0.4776 (3) | 0.5968 (2) | 0.0364 (2) | 0.0559 (8)* | |
C5 | 0.65553 (19) | 0.40751 (14) | 0.26261 (15) | 0.0205 (4) | |
C1 | 0.61786 (18) | 0.46720 (14) | 0.33805 (15) | 0.0190 (4) | |
C36 | −0.0978 (2) | −0.32501 (17) | −0.78864 (18) | 0.0341 (5) | |
H36 | −0.1167 (2) | −0.32200 (17) | −0.85432 (18) | 0.0409 (7)* | |
C39 | −0.0080 (2) | −0.34176 (17) | −0.48534 (18) | 0.0333 (5) | |
H39a | 0.0048 (14) | −0.2794 (3) | −0.4369 (3) | 0.0499 (8)* | |
H39b | −0.0732 (7) | −0.3844 (9) | −0.4890 (3) | 0.0499 (8)* | |
H39c | 0.0640 (8) | −0.3664 (11) | −0.4630 (6) | 0.0499 (8)* | |
N2 | −0.23739 (17) | −0.11610 (13) | −0.49220 (15) | 0.0277 (4) | |
C43 | −0.3738 (2) | 0.09706 (17) | −0.4782 (2) | 0.0364 (6) | |
H43 | −0.4391 (2) | 0.11715 (17) | −0.5195 (2) | 0.0437 (7)* | |
C22 | 0.9777 (2) | 0.70262 (16) | 0.93387 (17) | 0.0283 (5) | |
H22 | 0.9432 (2) | 0.63787 (16) | 0.91280 (17) | 0.0339 (6)* | |
C19 | 1.0825 (2) | 0.89456 (17) | 0.99812 (18) | 0.0351 (6) | |
H19 | 1.1177 (2) | 0.95922 (17) | 1.01954 (18) | 0.0421 (7)* | |
C44 | −0.2983 (2) | 0.15838 (17) | −0.3789 (2) | 0.0375 (6) | |
C16 | 0.3247 (2) | 0.49265 (18) | 0.16272 (18) | 0.0330 (5) | |
H16 | 0.2850 (2) | 0.46698 (18) | 0.19417 (18) | 0.0396 (6)* | |
C10 | 0.5705 (2) | 0.33425 (15) | 0.17443 (16) | 0.0270 (5) | |
H10 | 0.4896 (2) | 0.32567 (15) | 0.16071 (16) | 0.0324 (6)* | |
C21 | 1.0869 (2) | 0.74125 (18) | 1.02099 (18) | 0.0337 (5) | |
H21 | 1.1251 (2) | 0.70247 (18) | 1.05773 (18) | 0.0405 (6)* | |
C26 | 0.6386 (2) | 0.97932 (17) | 0.97090 (19) | 0.0375 (6) | |
H26 | 0.6234 (2) | 1.02789 (17) | 1.01591 (19) | 0.0451 (7)* | |
C17 | 0.91867 (19) | 0.75881 (15) | 0.87719 (15) | 0.0233 (5) | |
C35 | −0.0160 (2) | −0.38001 (16) | −0.75048 (18) | 0.0310 (5) | |
C25 | 0.6059 (2) | 0.97638 (16) | 0.87041 (18) | 0.0336 (6) | |
H25 | 0.5689 (2) | 1.02335 (16) | 0.84773 (18) | 0.0404 (7)* | |
C9 | 0.6060 (2) | 0.27418 (17) | 0.10719 (18) | 0.0355 (6) | |
H9 | 0.5487 (2) | 0.22552 (17) | 0.04871 (18) | 0.0426 (7)* | |
C23 | 0.68333 (18) | 0.83176 (14) | 0.83491 (16) | 0.0226 (5) | |
C24 | 0.62802 (19) | 0.90339 (15) | 0.80279 (17) | 0.0280 (5) | |
H24 | 0.60569 (19) | 0.90222 (15) | 0.73525 (17) | 0.0336 (6)* | |
C18 | 0.9734 (2) | 0.85541 (16) | 0.91072 (17) | 0.0301 (5) | |
H18 | 0.9360 (2) | 0.89431 (16) | 0.87377 (17) | 0.0361 (6)* | |
C52 | 0.7088 (2) | 0.21868 (18) | 0.3806 (2) | 0.0417 (6) | |
H52a | 0.7356 (12) | 0.2458 (9) | 0.4539 (2) | 0.0625 (10)* | |
H52b | 0.7282 (13) | 0.2673 (6) | 0.3550 (13) | 0.0625 (10)* | |
H52c | 0.6232 (2) | 0.1945 (3) | 0.3471 (12) | 0.0625 (10)* | |
C15 | 0.2587 (2) | 0.5054 (2) | 0.06950 (19) | 0.0442 (7) | |
H15 | 0.1751 (2) | 0.4874 (2) | 0.03849 (19) | 0.0531 (8)* | |
C27 | 0.6942 (2) | 0.90956 (17) | 1.00431 (19) | 0.0372 (6) | |
H27 | 0.7172 (2) | 0.91171 (17) | 1.07223 (19) | 0.0446 (7)* | |
C49 | −0.0740 (3) | 0.0049 (2) | −0.2849 (2) | 0.0490 (7) | |
H49a | −0.0160 (9) | 0.0002 (14) | −0.3123 (9) | 0.0735 (11)* | |
H49b | −0.0375 (11) | 0.0506 (8) | −0.2160 (4) | 0.0735 (11)* | |
H49c | −0.1014 (4) | −0.0568 (7) | −0.2832 (12) | 0.0735 (11)* | |
C7 | 0.8108 (2) | 0.35869 (18) | 0.21271 (19) | 0.0349 (6) | |
H7 | 0.8914 (2) | 0.36738 (18) | 0.22544 (19) | 0.0419 (7)* | |
C8 | 0.7261 (3) | 0.28626 (18) | 0.12664 (19) | 0.0390 (6) | |
H8 | 0.7495 (3) | 0.24550 (18) | 0.08161 (19) | 0.0468 (7)* | |
C50 | 0.8429 (2) | 0.11203 (16) | 0.43295 (19) | 0.0298 (5) | |
H50 | 0.8552 (2) | 0.14359 (16) | 0.50027 (19) | 0.0358 (6)* | |
C14 | 0.3151 (3) | 0.5444 (2) | 0.0218 (2) | 0.0477 (7) | |
H14 | 0.2700 (3) | 0.5532 (2) | −0.0407 (2) | 0.0572 (8)* | |
C11 | 0.4498 (2) | 0.51773 (15) | 0.21005 (16) | 0.0233 (5) | |
C33 | −0.03867 (19) | −0.33393 (15) | −0.59061 (17) | 0.0257 (5) | |
C37 | −0.1518 (2) | −0.27453 (16) | −0.73156 (18) | 0.0295 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Fe1 | 0.01874 (16) | 0.01510 (15) | 0.01784 (15) | 0.00388 (11) | 0.01013 (12) | 0.00228 (11) |
N1 | 0.0266 (10) | 0.0184 (9) | 0.0361 (10) | 0.0042 (7) | 0.0188 (9) | 0.0071 (8) |
S2 | 0.0202 (3) | 0.0168 (2) | 0.0188 (2) | 0.00595 (19) | 0.0109 (2) | 0.00447 (19) |
S1 | 0.0201 (3) | 0.0190 (2) | 0.0193 (2) | 0.0066 (2) | 0.0107 (2) | 0.00334 (19) |
S3 | 0.0192 (3) | 0.0172 (2) | 0.0204 (2) | 0.0046 (2) | 0.0095 (2) | 0.00126 (19) |
S4 | 0.0200 (3) | 0.0211 (3) | 0.0221 (3) | 0.0055 (2) | 0.0088 (2) | −0.0005 (2) |
O1 | 0.0375 (10) | 0.0379 (10) | 0.0721 (13) | 0.0193 (8) | 0.0321 (10) | 0.0327 (9) |
C32 | 0.0252 (11) | 0.0165 (10) | 0.0333 (12) | 0.0024 (9) | 0.0168 (10) | 0.0030 (9) |
C41 | 0.0343 (13) | 0.0220 (11) | 0.0382 (13) | 0.0103 (9) | 0.0264 (11) | 0.0123 (10) |
N3 | 0.0292 (10) | 0.0255 (10) | 0.0377 (11) | 0.0095 (8) | 0.0142 (9) | 0.0121 (8) |
C29 | 0.0265 (12) | 0.0206 (11) | 0.0348 (12) | 0.0048 (9) | 0.0185 (10) | 0.0093 (9) |
C31 | 0.0407 (14) | 0.0218 (12) | 0.0572 (16) | 0.0049 (10) | 0.0332 (13) | 0.0147 (11) |
C30 | 0.0466 (15) | 0.0269 (12) | 0.0603 (16) | 0.0087 (11) | 0.0397 (14) | 0.0183 (12) |
C51 | 0.063 (2) | 0.0543 (18) | 0.0410 (15) | 0.0170 (15) | 0.0214 (15) | 0.0153 (13) |
C28 | 0.0368 (13) | 0.0245 (11) | 0.0301 (12) | 0.0055 (10) | 0.0190 (11) | 0.0045 (9) |
C47 | 0.0357 (15) | 0.0482 (16) | 0.0436 (15) | 0.0071 (12) | 0.0162 (12) | 0.0117 (13) |
C20 | 0.0230 (12) | 0.0403 (14) | 0.0251 (11) | −0.0008 (10) | 0.0074 (10) | 0.0003 (10) |
C3 | 0.0236 (11) | 0.0184 (10) | 0.0200 (10) | 0.0014 (8) | 0.0104 (9) | 0.0021 (8) |
C38 | 0.0530 (17) | 0.0453 (16) | 0.0445 (15) | 0.0284 (14) | 0.0245 (13) | 0.0209 (13) |
C46 | 0.0387 (14) | 0.0327 (12) | 0.0341 (12) | 0.0147 (11) | 0.0251 (11) | 0.0133 (10) |
C2 | 0.0207 (11) | 0.0162 (10) | 0.0196 (10) | 0.0026 (8) | 0.0118 (8) | 0.0027 (8) |
C6 | 0.0289 (12) | 0.0257 (11) | 0.0306 (12) | 0.0055 (9) | 0.0183 (10) | 0.0076 (9) |
C12 | 0.0364 (14) | 0.0402 (14) | 0.0336 (13) | 0.0087 (11) | 0.0197 (11) | 0.0174 (11) |
C42 | 0.0294 (12) | 0.0303 (12) | 0.0399 (13) | 0.0063 (10) | 0.0208 (11) | 0.0142 (10) |
C40 | 0.0511 (17) | 0.0403 (15) | 0.0477 (16) | 0.0212 (13) | 0.0301 (14) | 0.0113 (12) |
C4 | 0.0250 (11) | 0.0169 (10) | 0.0222 (10) | 0.0032 (8) | 0.0112 (9) | 0.0031 (8) |
C48 | 0.060 (2) | 0.0322 (15) | 0.093 (3) | 0.0219 (14) | 0.0407 (19) | 0.0109 (15) |
C45 | 0.0407 (14) | 0.0328 (13) | 0.0369 (13) | 0.0092 (11) | 0.0227 (12) | 0.0044 (11) |
C34 | 0.0239 (12) | 0.0237 (11) | 0.0402 (13) | 0.0070 (9) | 0.0138 (10) | 0.0100 (10) |
C13 | 0.0589 (19) | 0.0588 (18) | 0.0403 (15) | 0.0160 (15) | 0.0301 (14) | 0.0301 (13) |
C5 | 0.0273 (11) | 0.0190 (10) | 0.0214 (10) | 0.0079 (9) | 0.0152 (9) | 0.0081 (8) |
C1 | 0.0231 (11) | 0.0162 (10) | 0.0183 (10) | 0.0020 (8) | 0.0121 (9) | 0.0029 (8) |
C36 | 0.0438 (15) | 0.0310 (12) | 0.0313 (12) | 0.0124 (11) | 0.0205 (11) | 0.0090 (10) |
C39 | 0.0302 (13) | 0.0319 (13) | 0.0360 (13) | 0.0041 (10) | 0.0134 (11) | 0.0114 (10) |
N2 | 0.0329 (11) | 0.0214 (9) | 0.0383 (11) | 0.0080 (8) | 0.0243 (9) | 0.0103 (8) |
C43 | 0.0311 (13) | 0.0354 (13) | 0.0552 (16) | 0.0168 (11) | 0.0243 (12) | 0.0229 (12) |
C22 | 0.0297 (12) | 0.0213 (11) | 0.0274 (11) | 0.0031 (9) | 0.0109 (10) | 0.0020 (9) |
C19 | 0.0301 (13) | 0.0262 (12) | 0.0379 (13) | −0.0041 (10) | 0.0130 (11) | 0.0006 (10) |
C44 | 0.0416 (15) | 0.0259 (12) | 0.0557 (16) | 0.0133 (11) | 0.0307 (13) | 0.0135 (11) |
C16 | 0.0303 (13) | 0.0434 (14) | 0.0302 (12) | 0.0110 (11) | 0.0152 (10) | 0.0157 (11) |
C10 | 0.0320 (13) | 0.0243 (11) | 0.0249 (11) | 0.0058 (9) | 0.0151 (10) | 0.0048 (9) |
C21 | 0.0316 (13) | 0.0378 (13) | 0.0288 (12) | 0.0089 (11) | 0.0103 (10) | 0.0111 (10) |
C26 | 0.0376 (14) | 0.0305 (13) | 0.0391 (14) | 0.0056 (11) | 0.0233 (12) | −0.0057 (11) |
C17 | 0.0219 (11) | 0.0242 (11) | 0.0216 (10) | 0.0036 (9) | 0.0127 (9) | −0.0002 (9) |
C35 | 0.0319 (13) | 0.0240 (11) | 0.0375 (13) | 0.0083 (10) | 0.0186 (11) | 0.0055 (10) |
C25 | 0.0280 (12) | 0.0238 (12) | 0.0385 (13) | 0.0075 (10) | 0.0119 (11) | −0.0016 (10) |
C9 | 0.0497 (16) | 0.0278 (12) | 0.0263 (12) | 0.0069 (11) | 0.0201 (11) | 0.0005 (10) |
C23 | 0.0188 (11) | 0.0170 (10) | 0.0262 (11) | −0.0010 (8) | 0.0112 (9) | −0.0021 (8) |
C24 | 0.0241 (12) | 0.0237 (11) | 0.0270 (11) | 0.0040 (9) | 0.0085 (10) | −0.0002 (9) |
C18 | 0.0290 (12) | 0.0244 (12) | 0.0317 (12) | 0.0033 (9) | 0.0113 (10) | 0.0057 (10) |
C52 | 0.0362 (14) | 0.0315 (13) | 0.0637 (18) | 0.0177 (11) | 0.0236 (13) | 0.0201 (13) |
C15 | 0.0338 (14) | 0.0660 (18) | 0.0303 (13) | 0.0144 (13) | 0.0084 (11) | 0.0200 (13) |
C27 | 0.0472 (15) | 0.0333 (13) | 0.0296 (12) | 0.0049 (11) | 0.0224 (12) | 0.0010 (10) |
C49 | 0.0555 (18) | 0.0579 (18) | 0.0389 (15) | 0.0297 (15) | 0.0214 (14) | 0.0184 (13) |
C7 | 0.0389 (14) | 0.0393 (14) | 0.0459 (14) | 0.0170 (11) | 0.0329 (12) | 0.0187 (12) |
C8 | 0.0612 (18) | 0.0340 (13) | 0.0395 (14) | 0.0207 (12) | 0.0386 (13) | 0.0106 (11) |
C50 | 0.0238 (12) | 0.0261 (12) | 0.0441 (14) | 0.0026 (10) | 0.0171 (11) | 0.0158 (10) |
C14 | 0.0560 (18) | 0.0659 (19) | 0.0278 (13) | 0.0238 (15) | 0.0167 (13) | 0.0256 (13) |
C11 | 0.0306 (12) | 0.0212 (10) | 0.0210 (10) | 0.0091 (9) | 0.0146 (9) | 0.0053 (8) |
C33 | 0.0231 (11) | 0.0181 (10) | 0.0342 (12) | 0.0012 (9) | 0.0125 (10) | 0.0071 (9) |
C37 | 0.0311 (13) | 0.0224 (11) | 0.0366 (13) | 0.0102 (9) | 0.0160 (10) | 0.0093 (10) |
Fe1—Fe1i | 2.9636 (6) | C40—C35 | 1.510 (3) |
Fe1—S2i | 2.4224 (6) | C4—C17 | 1.488 (3) |
Fe1—S2 | 2.2355 (6) | C48—H48a | 0.9600 |
Fe1—S1 | 2.2334 (6) | C48—H48b | 0.9600 |
Fe1—S3 | 2.2357 (6) | C48—H48c | 0.9600 |
Fe1—S4 | 2.2249 (6) | C48—C44 | 1.515 (3) |
N1—C32 | 1.452 (3) | C45—H45 | 0.9300 |
N1—C29 | 1.332 (3) | C45—C44 | 1.389 (4) |
N1—C31 | 1.384 (3) | C34—H34 | 0.9300 |
S2—C2 | 1.7695 (19) | C34—C35 | 1.388 (3) |
S1—C1 | 1.762 (2) | C34—C33 | 1.400 (3) |
S3—C3 | 1.764 (2) | C13—H13 | 0.9300 |
S4—C4 | 1.757 (2) | C13—C14 | 1.376 (4) |
O1—C50 | 1.234 (3) | C5—C1 | 1.489 (3) |
C32—C33 | 1.394 (3) | C5—C10 | 1.397 (3) |
C32—C37 | 1.394 (3) | C36—H36 | 0.9300 |
C41—C46 | 1.390 (3) | C36—C35 | 1.392 (3) |
C41—C42 | 1.394 (3) | C36—C37 | 1.388 (3) |
C41—N2 | 1.449 (3) | C39—H39a | 0.9600 |
N3—C51 | 1.445 (3) | C39—H39b | 0.9600 |
N3—C52 | 1.459 (3) | C39—H39c | 0.9600 |
N3—C50 | 1.321 (3) | C39—C33 | 1.507 (3) |
C29—H29 | 0.9300 | C43—H43 | 0.9300 |
C29—N2 | 1.334 (3) | C43—C44 | 1.386 (4) |
C31—H31 | 0.9300 | C22—H22 | 0.9300 |
C31—C30 | 1.347 (3) | C22—C21 | 1.383 (3) |
C30—H30 | 0.9300 | C22—C17 | 1.391 (3) |
C30—N2 | 1.381 (3) | C19—H19 | 0.9300 |
C51—H51a | 0.9600 | C19—C18 | 1.386 (3) |
C51—H51b | 0.9600 | C16—H16 | 0.9300 |
C51—H51c | 0.9600 | C16—C15 | 1.381 (3) |
C28—H28 | 0.9300 | C16—C11 | 1.388 (3) |
C28—C23 | 1.396 (3) | C10—H10 | 0.9300 |
C28—C27 | 1.389 (3) | C10—C9 | 1.387 (3) |
C47—H47a | 0.9600 | C21—H21 | 0.9300 |
C47—H47b | 0.9600 | C26—H26 | 0.9300 |
C47—H47c | 0.9600 | C26—C25 | 1.379 (4) |
C47—C42 | 1.505 (3) | C26—C27 | 1.383 (4) |
C20—H20 | 0.9300 | C17—C18 | 1.394 (3) |
C20—C19 | 1.383 (4) | C25—H25 | 0.9300 |
C20—C21 | 1.380 (3) | C25—C24 | 1.392 (3) |
C3—C4 | 1.352 (3) | C9—H9 | 0.9300 |
C3—C23 | 1.490 (3) | C9—C8 | 1.385 (4) |
C38—H38a | 0.9600 | C23—C24 | 1.399 (3) |
C38—H38b | 0.9600 | C24—H24 | 0.9300 |
C38—H38c | 0.9600 | C18—H18 | 0.9300 |
C38—C37 | 1.517 (3) | C52—H52a | 0.9600 |
C46—C45 | 1.391 (3) | C52—H52b | 0.9600 |
C46—C49 | 1.501 (4) | C52—H52c | 0.9600 |
C2—C1 | 1.353 (3) | C15—H15 | 0.9300 |
C2—C11 | 1.485 (3) | C15—C14 | 1.377 (4) |
C6—H6 | 0.9300 | C27—H27 | 0.9300 |
C6—C5 | 1.394 (3) | C49—H49a | 0.9600 |
C6—C7 | 1.389 (3) | C49—H49b | 0.9600 |
C12—H12 | 0.9300 | C49—H49c | 0.9600 |
C12—C13 | 1.389 (3) | C7—H7 | 0.9300 |
C12—C11 | 1.396 (3) | C7—C8 | 1.376 (4) |
C42—C43 | 1.390 (3) | C8—H8 | 0.9300 |
C40—H40a | 0.9600 | C50—H50 | 0.9300 |
C40—H40b | 0.9600 | C14—H14 | 0.9300 |
C40—H40c | 0.9600 | ||
S1—Fe1—S2i | 98.85 (2) | C10—C5—C6 | 118.36 (19) |
S1—Fe1—S2 | 87.69 (2) | C10—C5—C1 | 119.97 (19) |
S3—Fe1—S2 | 88.78 (2) | C2—C1—S1 | 119.93 (15) |
S3—Fe1—S2i | 103.39 (2) | C5—C1—S1 | 115.20 (15) |
S3—Fe1—S1 | 157.74 (2) | C5—C1—C2 | 124.79 (18) |
S4—Fe1—S2 | 152.39 (2) | C35—C36—H36 | 119.02 (14) |
S4—Fe1—S2i | 106.42 (2) | C37—C36—H36 | 119.02 (14) |
S4—Fe1—S1 | 85.80 (2) | C37—C36—C35 | 122.0 (2) |
S4—Fe1—S3 | 87.22 (2) | H39b—C39—H39a | 109.5 |
C29—N1—C32 | 125.31 (18) | H39c—C39—H39a | 109.5 |
C31—N1—C32 | 125.76 (18) | H39c—C39—H39b | 109.5 |
C31—N1—C29 | 108.87 (18) | C33—C39—H39a | 109.5 |
C2—S2—Fe1i | 107.03 (7) | C33—C39—H39b | 109.5 |
C2—S2—Fe1 | 106.33 (7) | C33—C39—H39c | 109.5 |
C1—S1—Fe1 | 106.41 (7) | C29—N2—C41 | 124.67 (18) |
C3—S3—Fe1 | 106.36 (7) | C30—N2—C41 | 126.34 (18) |
C4—S4—Fe1 | 106.94 (7) | C30—N2—C29 | 108.84 (18) |
C33—C32—N1 | 118.2 (2) | H43—C43—C42 | 118.91 (15) |
C37—C32—N1 | 118.17 (19) | C44—C43—C42 | 122.2 (2) |
C37—C32—C33 | 123.6 (2) | C44—C43—H43 | 118.91 (14) |
C42—C41—C46 | 123.3 (2) | C21—C22—H22 | 119.38 (14) |
N2—C41—C46 | 118.9 (2) | C17—C22—H22 | 119.38 (12) |
N2—C41—C42 | 117.8 (2) | C17—C22—C21 | 121.2 (2) |
C52—N3—C51 | 117.2 (2) | H19—C19—C20 | 120.08 (13) |
C50—N3—C51 | 120.7 (2) | C18—C19—C20 | 119.8 (2) |
C50—N3—C52 | 122.1 (2) | C18—C19—H19 | 120.08 (14) |
H29—C29—N1 | 125.93 (12) | C45—C44—C48 | 121.1 (2) |
N2—C29—N1 | 108.13 (18) | C43—C44—C48 | 120.4 (2) |
N2—C29—H29 | 125.93 (12) | C43—C44—C45 | 118.5 (2) |
H31—C31—N1 | 126.51 (12) | C15—C16—H16 | 119.62 (16) |
C30—C31—N1 | 107.0 (2) | C11—C16—H16 | 119.62 (13) |
C30—C31—H31 | 126.51 (14) | C11—C16—C15 | 120.8 (2) |
H30—C30—C31 | 126.41 (14) | H10—C10—C5 | 119.80 (12) |
N2—C30—C31 | 107.2 (2) | C9—C10—C5 | 120.4 (2) |
N2—C30—H30 | 126.41 (12) | C9—C10—H10 | 119.80 (14) |
H51a—C51—N3 | 109.5 | C22—C21—C20 | 120.0 (2) |
H51b—C51—N3 | 109.5 | H21—C21—C20 | 119.98 (14) |
H51b—C51—H51a | 109.5 | H21—C21—C22 | 119.98 (14) |
H51c—C51—N3 | 109.5 | C25—C26—H26 | 120.21 (14) |
H51c—C51—H51a | 109.5 | C27—C26—H26 | 120.21 (14) |
H51c—C51—H51b | 109.5 | C27—C26—C25 | 119.6 (2) |
C23—C28—H28 | 119.47 (13) | C22—C17—C4 | 121.03 (19) |
C27—C28—H28 | 119.47 (15) | C18—C17—C4 | 121.1 (2) |
C27—C28—C23 | 121.1 (2) | C18—C17—C22 | 117.8 (2) |
H47b—C47—H47a | 109.5 | C34—C35—C40 | 120.8 (2) |
H47c—C47—H47a | 109.5 | C36—C35—C40 | 120.5 (2) |
H47c—C47—H47b | 109.5 | C36—C35—C34 | 118.6 (2) |
C42—C47—H47a | 109.5 | H25—C25—C26 | 119.87 (14) |
C42—C47—H47b | 109.5 | C24—C25—C26 | 120.3 (2) |
C42—C47—H47c | 109.5 | C24—C25—H25 | 119.87 (15) |
C19—C20—H20 | 120.06 (13) | H9—C9—C10 | 119.81 (14) |
C21—C20—H20 | 120.06 (14) | C8—C9—C10 | 120.4 (2) |
C21—C20—C19 | 119.9 (2) | C8—C9—H9 | 119.81 (13) |
C4—C3—S3 | 119.37 (15) | C3—C23—C28 | 121.3 (2) |
C23—C3—S3 | 115.50 (15) | C24—C23—C28 | 117.72 (19) |
C23—C3—C4 | 125.09 (18) | C24—C23—C3 | 120.96 (19) |
H38b—C38—H38a | 109.5 | C23—C24—C25 | 121.0 (2) |
H38c—C38—H38a | 109.5 | H24—C24—C25 | 119.50 (15) |
H38c—C38—H38b | 109.5 | H24—C24—C23 | 119.50 (12) |
C37—C38—H38a | 109.5 | C17—C18—C19 | 121.2 (2) |
C37—C38—H38b | 109.5 | H18—C18—C19 | 119.40 (14) |
C37—C38—H38c | 109.5 | H18—C18—C17 | 119.40 (13) |
C45—C46—C41 | 117.0 (2) | H52a—C52—N3 | 109.5 |
C49—C46—C41 | 121.6 (2) | H52b—C52—N3 | 109.5 |
C49—C46—C45 | 121.3 (2) | H52b—C52—H52a | 109.5 |
C1—C2—S2 | 119.10 (15) | H52c—C52—N3 | 109.5 |
C11—C2—S2 | 114.65 (14) | H52c—C52—H52a | 109.5 |
C11—C2—C1 | 126.13 (18) | H52c—C52—H52b | 109.5 |
C5—C6—H6 | 119.52 (12) | H15—C15—C16 | 119.55 (16) |
C7—C6—H6 | 119.52 (14) | C14—C15—C16 | 120.9 (3) |
C7—C6—C5 | 121.0 (2) | C14—C15—H15 | 119.55 (16) |
C13—C12—H12 | 119.74 (16) | C26—C27—C28 | 120.4 (2) |
C11—C12—H12 | 119.74 (14) | H27—C27—C28 | 119.81 (15) |
C11—C12—C13 | 120.5 (2) | H27—C27—C26 | 119.81 (14) |
C47—C42—C41 | 121.9 (2) | H49a—C49—C46 | 109.5 |
C43—C42—C41 | 116.9 (2) | H49b—C49—C46 | 109.5 |
C43—C42—C47 | 121.2 (2) | H49b—C49—H49a | 109.5 |
H40b—C40—H40a | 109.5 | H49c—C49—C46 | 109.5 |
H40c—C40—H40a | 109.5 | H49c—C49—H49a | 109.5 |
H40c—C40—H40b | 109.5 | H49c—C49—H49b | 109.5 |
C35—C40—H40a | 109.5 | H7—C7—C6 | 120.00 (14) |
C35—C40—H40b | 109.5 | C8—C7—C6 | 120.0 (2) |
C35—C40—H40c | 109.5 | C8—C7—H7 | 120.00 (14) |
C3—C4—S4 | 119.26 (15) | C7—C8—C9 | 119.9 (2) |
C17—C4—S4 | 115.04 (15) | H8—C8—C9 | 120.05 (13) |
C17—C4—C3 | 125.60 (18) | H8—C8—C7 | 120.05 (14) |
H48b—C48—H48a | 109.5 | N3—C50—O1 | 125.1 (2) |
H48c—C48—H48a | 109.5 | H50—C50—O1 | 117.45 (15) |
H48c—C48—H48b | 109.5 | H50—C50—N3 | 117.45 (14) |
C44—C48—H48a | 109.5 | C15—C14—C13 | 119.1 (2) |
C44—C48—H48b | 109.5 | H14—C14—C13 | 120.43 (15) |
C44—C48—H48c | 109.5 | H14—C14—C15 | 120.43 (16) |
H45—C45—C46 | 118.98 (15) | C12—C11—C2 | 120.8 (2) |
C44—C45—C46 | 122.0 (2) | C16—C11—C2 | 121.00 (19) |
C44—C45—H45 | 118.98 (14) | C16—C11—C12 | 118.1 (2) |
C35—C34—H34 | 118.95 (13) | C34—C33—C32 | 116.6 (2) |
C33—C34—H34 | 118.95 (13) | C39—C33—C32 | 122.9 (2) |
C33—C34—C35 | 122.1 (2) | C39—C33—C34 | 120.5 (2) |
H13—C13—C12 | 119.71 (16) | C38—C37—C32 | 122.8 (2) |
C14—C13—C12 | 120.6 (2) | C36—C37—C32 | 117.1 (2) |
C14—C13—H13 | 119.71 (15) | C36—C37—C38 | 120.0 (2) |
C1—C5—C6 | 121.56 (18) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
C29—H29···O1 | 0.93 (1) | 2.22 (1) | 3.038 (3) | 147 (1) |
C30—H30···O1 | 0.93 (1) | 2.77 (1) | 3.593 (3) | 148 (1) |
C31—H31···S1 | 0.93 (1) | 2.87 (1) | 3.763 (3) | 162 (1) |
C49—H49···O1 | 0.96 (1) | 2.59 (1) | 3.529 (4) | 167 (1) |
Acknowledgements
The authors like to acknowledge support by funds from the Chemistry Department, Wright State University, College of Science and Mathematics. The authors would also like to acknowledge Dr Grossie, Wright State University, for help with low-temperature data X-ray diffraction collection.
Funding information
Funding for this research was provided by: American Chemical Society Petroleum Research Fund (grant No. 59893UR7 to Kuppuswamy Arumugam); National Institutes of Health, National Cancer Institute (grant No. CA232765 to Kuppuswamy Arumugam).
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