metal-organic compounds
Bis[5-methyl-2,3-bis(thiophen-2-yl)quinoxaline-κN1](nitrato-κ2O,O′)silver(I)
aDepartment of Chemistry & Biochemistry, Central Connecticut State University, 1619 Stanley Street, New Britain, CT 06053, USA
*Correspondence e-mail: crundwellg@ccsu.edu
The 3)(C17H12N2S2)2], has monoclinic (C2/c) symmetry, with the silver(I) atom and the nitrate group sitting on a twofold rotation axis. The complex also exhibits a thienyl-ring flip disorder, which is common for unsubstituted thiophene rings.
of the title silver(I) complex, [Ag(NOKeywords: crystal structure; thienylquinoxaline; silver nitrate.
CCDC reference: 2250090
Structure description
The central silver(I) atom and the nitrate anion sit on a twofold rotation axis. The two thienyl rings make dihedral angles of 17.14 (9) and 77.55 (6)° with respect to the quinoxaline moiety. The latter thienyl ring also has a flip disorder of 64.7 (4)%, which is common for unsubstituted thienyl rings (Crundwell et al., 2003). The nitrate anion bonds to the silver via two O atoms. As seen with similar bis-dithienylquinoxaline silver nitrate complexes (Crundwell et al., 2014), the N—Ag—N angle is correlated to the nitrate anion bonding to the metal in a bidentate fashion (Table 1, Fig. 1).
Synthesis and crystallization
Crystals were grown by combining warmed methanolic solutions of AgNO3 and 5-methyl-2,3-(dithiophen-2-yl)-quinoxaline in a 1:2 molar ratio. The combined solution was pipetted into test tubes, which were then placed into amber vials and loosely sealed until small colorless crystals were observed. Crystals were harvested and used immediately since the silver salts deteriorate in light within days.
Refinement
Crystal data, data collection and structure . Positional restraints and displacement parameter constraints were used in order to refine the amount of flip disorder, which was 64.7 (4)% for one of the thienyl rings (C14–C17, S2).
details are summarized in Table 2Structural data
CCDC reference: 2250090
https://doi.org/10.1107/S2414314623002651/bt4136sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2414314623002651/bt4136Isup2.hkl
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell
CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL (Sheldrick, 2015); molecular graphics: Olex2 (Dolomanov et al., 2009) and ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: Olex2 (Dolomanov et al., 2009).[Ag(NO3)(C17H12N2S2)2] | F(000) = 1592 |
Mr = 786.69 | Dx = 1.610 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
a = 18.9246 (10) Å | Cell parameters from 3173 reflections |
b = 8.9789 (4) Å | θ = 4.5–31.7° |
c = 22.2776 (13) Å | µ = 0.92 mm−1 |
β = 120.967 (7)° | T = 293 K |
V = 3245.9 (3) Å3 | Block, colorless |
Z = 4 | 0.38 × 0.35 × 0.20 mm |
Xcalibur, Sapphire3 diffractometer | 5743 independent reflections |
Radiation source: fine-focus sealed X-ray tube, Enhance (Mo) X-ray Source | 3896 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
Detector resolution: 16.1790 pixels mm-1 | θmax = 33.5°, θmin = 4.1° |
ω scans | h = −25→28 |
Absorption correction: multi-scan (CrysAlisPro; Oxford Diffraction, 2009) | k = −13→9 |
Tmin = 0.886, Tmax = 1.000 | l = −34→19 |
11880 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.041 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.107 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.044P)2 + 0.9845P] where P = (Fo2 + 2Fc2)/3 |
5743 reflections | (Δ/σ)max < 0.001 |
228 parameters | Δρmax = 0.32 e Å−3 |
30 restraints | Δρmin = −0.46 e Å−3 |
Experimental. Hydrogen atoms on sp2 carbons were included in calculated positions with a C-H distance of 0.93 Å and were included in the refinement in riding motion approximation with Uiso = 1.2Ueq of the carrier atom and hydrogen atoms on sp3 carbons were included in calculated positions with a C-H distance of 0.96 Å and were included in the refinement in riding motion approximation with Uiso = 1.5Ueq of the carrier atom. |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2sigma(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Ag1 | 0.5000 | 0.28104 (3) | 0.7500 | 0.05147 (10) | |
O1 | 0.47816 (15) | 0.5374 (2) | 0.78512 (12) | 0.0785 (6) | |
O2 | 0.5000 | 0.7444 (4) | 0.7500 | 0.0920 (11) | |
N1 | 0.37028 (10) | 0.2035 (2) | 0.67321 (9) | 0.0397 (4) | |
N2 | 0.21614 (10) | 0.0848 (2) | 0.57801 (9) | 0.0404 (4) | |
N3 | 0.5000 | 0.6080 (4) | 0.7500 | 0.0537 (7) | |
C1 | 0.27757 (12) | 0.0778 (2) | 0.56570 (10) | 0.0386 (4) | |
C2 | 0.35742 (12) | 0.1362 (2) | 0.61561 (10) | 0.0378 (4) | |
C3 | 0.30625 (13) | 0.2174 (2) | 0.68498 (11) | 0.0396 (4) | |
C4 | 0.31805 (15) | 0.2932 (3) | 0.74494 (12) | 0.0517 (6) | |
H4 | 0.3686 | 0.3366 | 0.7761 | 0.062* | |
C5 | 0.25366 (16) | 0.3015 (3) | 0.75613 (13) | 0.0531 (6) | |
H5 | 0.2608 | 0.3511 | 0.7955 | 0.064* | |
C6 | 0.17693 (15) | 0.2370 (3) | 0.70951 (13) | 0.0467 (5) | |
H6 | 0.1348 | 0.2435 | 0.7192 | 0.056* | |
C7 | 0.16241 (12) | 0.1645 (2) | 0.64991 (11) | 0.0406 (4) | |
C8 | 0.22894 (12) | 0.1547 (2) | 0.63735 (10) | 0.0367 (4) | |
C9 | 0.08016 (14) | 0.0988 (3) | 0.59912 (13) | 0.0571 (6) | |
H9A | 0.0870 | −0.0036 | 0.5906 | 0.086* | |
H9B | 0.0558 | 0.1532 | 0.5559 | 0.086* | |
H9C | 0.0449 | 0.1045 | 0.6182 | 0.086* | |
C10 | 0.25759 (13) | 0.0051 (3) | 0.49975 (11) | 0.0431 (5) | |
C11 | 0.29678 (16) | 0.0086 (3) | 0.46086 (12) | 0.0536 (6) | |
H11 | 0.3452 | 0.0600 | 0.4739 | 0.064* | |
C12 | 0.25216 (19) | −0.0774 (3) | 0.39869 (14) | 0.0667 (7) | |
H12 | 0.2688 | −0.0887 | 0.3663 | 0.080* | |
C13 | 0.18427 (16) | −0.1403 (3) | 0.39128 (13) | 0.0619 (7) | |
H13 | 0.1490 | −0.2000 | 0.3534 | 0.074* | |
S1 | 0.16912 (4) | −0.10019 (8) | 0.45797 (3) | 0.06093 (18) | |
C14 | 0.42926 (12) | 0.1231 (2) | 0.60653 (11) | 0.0405 (4) | 0.647 (4) |
C15 | 0.4616 (7) | 0.2282 (9) | 0.5845 (7) | 0.0562 (8) | 0.647 (4) |
H15 | 0.4423 | 0.3255 | 0.5739 | 0.067* | 0.647 (4) |
C16 | 0.529 (2) | 0.173 (2) | 0.579 (3) | 0.0586 (11) | 0.647 (4) |
H16 | 0.5563 | 0.2273 | 0.5614 | 0.070* | 0.647 (4) |
C17 | 0.5493 (8) | 0.0331 (15) | 0.6030 (10) | 0.061 (2) | 0.647 (4) |
H17 | 0.5946 | −0.0181 | 0.6076 | 0.073* | 0.647 (4) |
S2 | 0.48188 (14) | −0.03878 (19) | 0.62341 (13) | 0.0742 (5) | 0.647 (4) |
C14B | 0.42926 (12) | 0.1231 (2) | 0.60653 (11) | 0.0405 (4) | 0.353 (4) |
C15B | 0.4753 (11) | −0.0013 (15) | 0.6156 (11) | 0.0742 (5) | 0.353 (4) |
H15B | 0.4699 | −0.0908 | 0.6339 | 0.089* | 0.353 (4) |
C16B | 0.5332 (17) | 0.024 (3) | 0.593 (2) | 0.061 (2) | 0.353 (4) |
H16B | 0.5654 | −0.0503 | 0.5902 | 0.073* | 0.353 (4) |
C17B | 0.536 (4) | 0.167 (4) | 0.577 (5) | 0.0586 (11) | 0.353 (4) |
H17B | 0.5746 | 0.2062 | 0.5680 | 0.070* | 0.353 (4) |
S2B | 0.4599 (3) | 0.2654 (4) | 0.5764 (3) | 0.0562 (8) | 0.353 (4) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ag1 | 0.03173 (12) | 0.0712 (2) | 0.04456 (14) | 0.000 | 0.01473 (10) | 0.000 |
O1 | 0.0970 (16) | 0.0848 (14) | 0.0859 (15) | 0.0033 (12) | 0.0700 (14) | 0.0022 (11) |
O2 | 0.093 (3) | 0.061 (2) | 0.092 (2) | 0.000 | 0.026 (2) | 0.000 |
N1 | 0.0327 (8) | 0.0489 (10) | 0.0362 (8) | −0.0001 (7) | 0.0168 (7) | −0.0003 (7) |
N2 | 0.0359 (8) | 0.0433 (10) | 0.0414 (9) | −0.0012 (7) | 0.0195 (7) | −0.0022 (7) |
N3 | 0.0424 (14) | 0.065 (2) | 0.0481 (15) | 0.000 | 0.0195 (12) | 0.000 |
C1 | 0.0357 (10) | 0.0393 (11) | 0.0386 (10) | 0.0009 (8) | 0.0175 (8) | 0.0012 (8) |
C2 | 0.0332 (9) | 0.0411 (11) | 0.0384 (10) | 0.0015 (8) | 0.0180 (8) | 0.0027 (8) |
C3 | 0.0347 (9) | 0.0469 (11) | 0.0375 (9) | −0.0015 (9) | 0.0188 (8) | −0.0006 (9) |
C4 | 0.0449 (12) | 0.0678 (16) | 0.0446 (11) | −0.0105 (11) | 0.0246 (10) | −0.0127 (11) |
C5 | 0.0558 (14) | 0.0644 (16) | 0.0489 (12) | −0.0041 (12) | 0.0340 (11) | −0.0090 (11) |
C6 | 0.0461 (12) | 0.0529 (13) | 0.0517 (12) | 0.0041 (10) | 0.0328 (11) | 0.0064 (10) |
C7 | 0.0357 (10) | 0.0422 (11) | 0.0454 (11) | 0.0016 (8) | 0.0219 (9) | 0.0064 (9) |
C8 | 0.0345 (9) | 0.0369 (10) | 0.0382 (9) | 0.0015 (8) | 0.0184 (8) | 0.0040 (8) |
C9 | 0.0414 (12) | 0.0742 (17) | 0.0593 (14) | −0.0112 (11) | 0.0284 (11) | −0.0076 (13) |
C10 | 0.0390 (10) | 0.0451 (12) | 0.0404 (10) | 0.0034 (9) | 0.0169 (9) | −0.0024 (8) |
C11 | 0.0591 (14) | 0.0626 (15) | 0.0425 (12) | −0.0111 (12) | 0.0287 (11) | −0.0110 (11) |
C12 | 0.0739 (19) | 0.0817 (19) | 0.0456 (13) | 0.0012 (15) | 0.0314 (13) | −0.0095 (13) |
C13 | 0.0509 (14) | 0.0680 (17) | 0.0461 (12) | 0.0061 (13) | 0.0102 (11) | −0.0152 (12) |
S1 | 0.0405 (3) | 0.0738 (4) | 0.0590 (4) | −0.0038 (3) | 0.0189 (3) | −0.0197 (3) |
C14 | 0.0351 (10) | 0.0472 (12) | 0.0405 (10) | 0.0025 (8) | 0.0203 (8) | 0.0002 (9) |
C15 | 0.0572 (9) | 0.043 (2) | 0.0860 (17) | 0.0055 (13) | 0.0495 (10) | 0.0135 (13) |
C16 | 0.053 (5) | 0.066 (2) | 0.073 (3) | −0.0032 (16) | 0.043 (3) | 0.003 (3) |
C17 | 0.043 (5) | 0.068 (2) | 0.081 (6) | 0.014 (3) | 0.038 (6) | 0.005 (3) |
S2 | 0.0757 (8) | 0.0617 (11) | 0.1139 (11) | 0.0299 (7) | 0.0693 (9) | 0.0374 (8) |
C14B | 0.0351 (10) | 0.0472 (12) | 0.0405 (10) | 0.0025 (8) | 0.0203 (8) | 0.0002 (9) |
C15B | 0.0757 (8) | 0.0617 (11) | 0.1139 (11) | 0.0299 (7) | 0.0693 (9) | 0.0374 (8) |
C16B | 0.043 (5) | 0.068 (2) | 0.081 (6) | 0.014 (3) | 0.038 (6) | 0.005 (3) |
C17B | 0.053 (5) | 0.066 (2) | 0.073 (3) | −0.0032 (16) | 0.043 (3) | 0.003 (3) |
S2B | 0.0572 (9) | 0.043 (2) | 0.0860 (17) | 0.0055 (13) | 0.0495 (10) | 0.0135 (13) |
Ag1—O1 | 2.533 (2) | C9—H9B | 0.9600 |
Ag1—O1i | 2.533 (2) | C9—H9C | 0.9600 |
Ag1—N1i | 2.2619 (17) | C10—C11 | 1.401 (3) |
Ag1—N1 | 2.2619 (17) | C10—S1 | 1.720 (2) |
O1—N3 | 1.232 (3) | C11—H11 | 0.9300 |
O2—N3 | 1.224 (4) | C11—C12 | 1.423 (3) |
N1—C2 | 1.323 (3) | C12—H12 | 0.9300 |
N1—C3 | 1.371 (3) | C12—C13 | 1.334 (4) |
N2—C1 | 1.326 (3) | C13—H13 | 0.9300 |
N2—C8 | 1.367 (3) | C13—S1 | 1.690 (3) |
N3—O1i | 1.232 (3) | C14—C15 | 1.348 (8) |
C1—C2 | 1.437 (3) | C14—S2 | 1.692 (2) |
C1—C10 | 1.468 (3) | C15—H15 | 0.9300 |
C2—C14 | 1.479 (3) | C15—C16 | 1.437 (11) |
C3—C4 | 1.411 (3) | C16—H16 | 0.9300 |
C3—C8 | 1.409 (3) | C16—C17 | 1.337 (9) |
C4—H4 | 0.9300 | C17—H17 | 0.9300 |
C4—C5 | 1.366 (3) | C17—S2 | 1.688 (10) |
C5—H5 | 0.9300 | C15B—H15B | 0.9300 |
C5—C6 | 1.404 (4) | C15B—C16B | 1.437 (16) |
C6—H6 | 0.9300 | C16B—H16B | 0.9300 |
C6—C7 | 1.373 (3) | C16B—C17B | 1.335 (14) |
C7—C8 | 1.426 (3) | C17B—H17B | 0.9300 |
C7—C9 | 1.496 (3) | C17B—S2B | 1.679 (16) |
C9—H9A | 0.9600 | ||
O1i—Ag1—O1 | 49.30 (9) | C7—C9—H9B | 109.5 |
N1i—Ag1—O1 | 109.40 (7) | C7—C9—H9C | 109.5 |
N1—Ag1—O1i | 109.41 (7) | H9A—C9—H9B | 109.5 |
N1i—Ag1—O1i | 103.14 (7) | H9A—C9—H9C | 109.5 |
N1—Ag1—O1 | 103.14 (7) | H9B—C9—H9C | 109.5 |
N1—Ag1—N1i | 144.14 (9) | C1—C10—S1 | 117.63 (16) |
N3—O1—Ag1 | 96.32 (18) | C11—C10—C1 | 131.5 (2) |
C2—N1—Ag1 | 117.43 (13) | C11—C10—S1 | 110.81 (16) |
C2—N1—C3 | 119.18 (17) | C10—C11—H11 | 124.7 |
C3—N1—Ag1 | 123.33 (13) | C10—C11—C12 | 110.6 (2) |
C1—N2—C8 | 118.92 (17) | C12—C11—H11 | 124.7 |
O1i—N3—O1 | 118.1 (3) | C11—C12—H12 | 123.2 |
O2—N3—O1i | 120.97 (17) | C13—C12—C11 | 113.7 (2) |
O2—N3—O1 | 120.97 (17) | C13—C12—H12 | 123.2 |
N2—C1—C2 | 120.49 (18) | C12—C13—H13 | 123.5 |
N2—C1—C10 | 115.22 (18) | C12—C13—S1 | 112.9 (2) |
C2—C1—C10 | 124.28 (18) | S1—C13—H13 | 123.5 |
N1—C2—C1 | 120.83 (18) | C13—S1—C10 | 91.99 (13) |
N1—C2—C14 | 116.47 (17) | C2—C14—S2 | 121.03 (17) |
C1—C2—C14 | 122.69 (18) | C15—C14—C2 | 128.1 (5) |
N1—C3—C4 | 120.00 (19) | C15—C14—S2 | 110.9 (4) |
N1—C3—C8 | 119.80 (18) | C14—C15—H15 | 123.8 |
C8—C3—C4 | 120.20 (19) | C14—C15—C16 | 112.3 (8) |
C3—C4—H4 | 120.7 | C16—C15—H15 | 123.8 |
C5—C4—C3 | 118.5 (2) | C15—C16—H16 | 124.0 |
C5—C4—H4 | 120.7 | C17—C16—C15 | 112.0 (10) |
C4—C5—H5 | 119.2 | C17—C16—H16 | 124.0 |
C4—C5—C6 | 121.5 (2) | C16—C17—H17 | 124.2 |
C6—C5—H5 | 119.2 | C16—C17—S2 | 111.6 (8) |
C5—C6—H6 | 119.1 | S2—C17—H17 | 124.2 |
C7—C6—C5 | 121.8 (2) | C17—S2—C14 | 93.0 (4) |
C7—C6—H6 | 119.1 | C16B—C15B—H15B | 124.4 |
C6—C7—C8 | 117.46 (19) | C15B—C16B—H16B | 123.7 |
C6—C7—C9 | 122.07 (19) | C17B—C16B—C15B | 112.6 (18) |
C8—C7—C9 | 120.47 (19) | C17B—C16B—H16B | 123.7 |
N2—C8—C3 | 120.67 (17) | C16B—C17B—H17B | 124.4 |
N2—C8—C7 | 118.87 (18) | C16B—C17B—S2B | 111.1 (17) |
C3—C8—C7 | 120.46 (18) | S2B—C17B—H17B | 124.4 |
C7—C9—H9A | 109.5 | ||
Ag1—O1—N3—O1i | −0.002 (2) | C2—C1—C10—C11 | −19.4 (4) |
Ag1—O1—N3—O2 | 180.000 (2) | C2—C1—C10—S1 | 163.24 (17) |
Ag1—N1—C2—C1 | 177.25 (14) | C2—C14—C15—C16 | −177 (2) |
Ag1—N1—C2—C14 | −1.9 (2) | C2—C14—S2—C17 | −179.4 (7) |
Ag1—N1—C3—C4 | 5.0 (3) | C3—N1—C2—C1 | −0.1 (3) |
Ag1—N1—C3—C8 | −174.50 (14) | C3—N1—C2—C14 | −179.20 (18) |
O1i—Ag1—O1—N3 | 0.001 (2) | C3—C4—C5—C6 | −0.1 (4) |
O1i—Ag1—N1—C2 | 85.90 (16) | C4—C3—C8—N2 | 178.0 (2) |
O1—Ag1—N1—C2 | 137.02 (15) | C4—C3—C8—C7 | −1.3 (3) |
O1i—Ag1—N1—C3 | −96.90 (16) | C4—C5—C6—C7 | −1.0 (4) |
O1—Ag1—N1—C3 | −45.79 (17) | C5—C6—C7—C8 | 1.0 (3) |
N1i—Ag1—O1—N3 | 90.85 (13) | C5—C6—C7—C9 | −178.4 (2) |
N1—Ag1—O1—N3 | −104.43 (13) | C6—C7—C8—N2 | −179.2 (2) |
N1i—Ag1—N1—C2 | −68.10 (14) | C6—C7—C8—C3 | 0.2 (3) |
N1i—Ag1—N1—C3 | 109.09 (16) | C8—N2—C1—C2 | 3.0 (3) |
N1—C2—C14—C15 | −79.2 (8) | C8—N2—C1—C10 | −178.15 (18) |
N1—C2—C14—S2 | 101.6 (2) | C8—C3—C4—C5 | 1.3 (4) |
N1—C3—C4—C5 | −178.2 (2) | C9—C7—C8—N2 | 0.3 (3) |
N1—C3—C8—N2 | −2.5 (3) | C9—C7—C8—C3 | 179.6 (2) |
N1—C3—C8—C7 | 178.19 (19) | C10—C1—C2—N1 | 178.41 (19) |
N2—C1—C2—N1 | −2.9 (3) | C10—C1—C2—C14 | −2.5 (3) |
N2—C1—C2—C14 | 176.19 (19) | C10—C11—C12—C13 | 0.3 (4) |
N2—C1—C10—C11 | 161.8 (2) | C11—C10—S1—C13 | 0.7 (2) |
N2—C1—C10—S1 | −15.5 (3) | C11—C12—C13—S1 | 0.2 (3) |
C1—N2—C8—C3 | −0.4 (3) | C12—C13—S1—C10 | −0.5 (2) |
C1—N2—C8—C7 | 178.89 (19) | S1—C10—C11—C12 | −0.6 (3) |
C1—C2—C14—C15 | 101.7 (8) | C14—C15—C16—C17 | −5 (4) |
C1—C2—C14—S2 | −77.6 (3) | C15—C14—S2—C17 | 1.2 (9) |
C1—C10—C11—C12 | −178.1 (2) | C15—C16—C17—S2 | 6 (4) |
C1—C10—S1—C13 | 178.55 (18) | C16—C17—S2—C14 | −4 (3) |
C2—N1—C3—C4 | −177.9 (2) | S2—C14—C15—C16 | 2 (2) |
C2—N1—C3—C8 | 2.6 (3) | C15B—C16B—C17B—S2B | −9 (7) |
Symmetry code: (i) −x+1, y, −z+3/2. |
Funding information
Funding for this research was provided by: CSU-AAUP Research Grant .
References
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