organic compounds
(S)-1-(Benzylselanyl)-3-phenylpropan-2-amine
aDepartment of Studies and Research in Chemistry, U.C.S., Tumkur University, Tumkur, Karnataka-572103, India, bDepartment of PG Studies and Research in Physics, Albert Einstein Block, UCS, Tumkur University, Tumkur, Karnataka-572103, India, cDepartment of Chemistry, Keene State College, 229 Main Street, Keene, NH 03435-2001, USA, and dDepartment of Inorganic & Structural Chemistry, Howard University Washington DC, 20059, USA
*Correspondence e-mail: raghukp1@gmail.com
In the title compound, C16H19NSe, the dihedral angle between the benzene rings is 66.49 (12) and a weak intramolecular N—H⋯Se hydrogen bond generates an S(6) ring. In the crystal, weak N—H⋯N hydrogen bonds link the molecules into [100] chains.
Keywords: crystal structure; chiral selenated amine; hybrid ligand.
CCDC reference: 1941535
Structure description
The title compound, C16H19NSe, is a chiral selenated amine that could act as a hybrid ligand of the (N,Se) type. This amine could further be used for the synthesis of chiral with various aldehydes/ketones, which may result in multidentate hybrid ligands (Kostas et al., 2006; Kumar et al., 2009).
The molecular structure is shown in Fig. 1. The dihedral angle between the benzene rings is 66.49 (12)° and the C7—Se1—C8—C9 torsion angle is 75.3 (5)°. A weak intramolecular N—H⋯Se hydrogen bond (Table 1) generates an S(5) ring. In the crystal, molecules are linked by weak N1—H2N⋯N1 interactions, generating [100] chains (Fig. 2).
Synthesis and crystallization
The title compound was synthesized according to our reported procedure (Rajegowda et al., 2015). The light-yellow viscous liquid obtained was dissolved in a 1:1 mixture of dichloromethane and n-hexane, which was kept undisturbed in the refrigerator at 0°C. After four to five days, light-yellow crystals were collected by filtration and dried in air.
Refinement
Crystal data, data collection and structure .
details are summarized in Table 2Structural data
CCDC reference: 1941535
https://doi.org/10.1107/S2414314619010290/hb4305sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2414314619010290/hb4305Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S2414314619010290/hb4305Isup3.cml
Data collection: CrysAlis PRO (Agilent, 2014; cell
CrysAlis PRO (Agilent, 2014; data reduction: CrysAlis PRO (Agilent, 2014; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXL2014 (Sheldrick, 2015).C16H19NSe | prism |
Mr = 304.28 | Dx = 1.351 Mg m−3 |
Orthorhombic, P212121 | Melting point: 498 K |
Hall symbol: P 2ac 2ab | Cu Kα radiation, λ = 1.54178 Å |
a = 5.7670 (3) Å | Cell parameters from 2501 reflections |
b = 8.1908 (3) Å | θ = 1–71.8° |
c = 31.6737 (9) Å | µ = 3.24 mm−1 |
V = 1496.15 (10) Å3 | T = 295 K |
Z = 4 | Prism, yellow |
F(000) = 624 | 0.32 × 0.28 × 0.22 mm |
Rigaku Oxford Diffraction CCD diffractometer | 2848 independent reflections |
Radiation source: Cu Kα | 2501 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.037 |
Detector resolution: 16.2 pixels mm-1 | θmax = 71.8°, θmin = 5.6° |
ω scans | h = −7→6 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2014) | k = −9→6 |
Tmin = 0.403, Tmax = 0.490 | l = −37→38 |
9030 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: mixed |
R[F2 > 2σ(F2)] = 0.041 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.122 | w = 1/[σ2(Fo2) + (0.0698P)2 + 0.2035P] where P = (Fo2 + 2Fc2)/3 |
S = 1.09 | (Δ/σ)max < 0.001 |
2848 reflections | Δρmax = 0.39 e Å−3 |
171 parameters | Δρmin = −0.45 e Å−3 |
0 restraints | Absolute structure: Flack x determined using 861 quotients [(I+)-(I-)]/[(I+)+(I-)] (Parsons et al., 2013) |
3 constraints | Absolute structure parameter: −0.015 (16) |
Primary atom site location: structure-invariant direct methods |
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. The C-bound hydrogen atoms were fixed geometrically and allowed to ride on their parent atoms: C—H = 0.93–0.97Å. The N-bound H atoms were located in difference maps and their positions were freely refined. The constraint Uiso(H) = 1.2Ueq(carrier) was applied in all cases. |
x | y | z | Uiso*/Ueq | ||
Se1 | 0.09270 (14) | 0.59847 (9) | 0.46926 (2) | 0.0991 (3) | |
N1 | 0.4997 (11) | 0.3335 (8) | 0.48563 (15) | 0.0909 (14) | |
H1N | 0.447 (12) | 0.424 (8) | 0.501 (2) | 0.10 (2)* | |
H2N | 0.633 (9) | 0.313 (6) | 0.4892 (14) | 0.051 (12)* | |
C1 | 0.1443 (9) | 0.8034 (5) | 0.39473 (16) | 0.0771 (12) | |
C2 | −0.0602 (10) | 0.8816 (7) | 0.3875 (2) | 0.0964 (16) | |
H2A | −0.147323 | 0.919744 | 0.410166 | 0.116* | |
C3 | −0.1392 (12) | 0.9046 (9) | 0.3468 (3) | 0.116 (2) | |
H3A | −0.277636 | 0.959867 | 0.342064 | 0.139* | |
C4 | −0.0145 (16) | 0.8463 (8) | 0.3137 (3) | 0.113 (2) | |
H4A | −0.068275 | 0.861057 | 0.286291 | 0.135* | |
C5 | 0.1889 (15) | 0.7662 (8) | 0.3205 (2) | 0.106 (2) | |
H5A | 0.273920 | 0.726206 | 0.297845 | 0.127* | |
C6 | 0.2680 (10) | 0.7449 (6) | 0.36081 (18) | 0.0823 (13) | |
H6A | 0.407040 | 0.690101 | 0.365352 | 0.099* | |
C7 | 0.2370 (15) | 0.7833 (7) | 0.43881 (19) | 0.1000 (18) | |
H7A | 0.209642 | 0.883106 | 0.454527 | 0.120* | |
H7B | 0.403243 | 0.766115 | 0.437452 | 0.120* | |
C8 | 0.2155 (9) | 0.4239 (6) | 0.43435 (13) | 0.0699 (11) | |
H8A | 0.125625 | 0.325788 | 0.439510 | 0.084* | |
H8B | 0.194796 | 0.453309 | 0.404928 | 0.084* | |
C9 | 0.4694 (8) | 0.3857 (6) | 0.44176 (13) | 0.0690 (10) | |
H9A | 0.562445 | 0.483726 | 0.436549 | 0.083* | |
C10 | 0.5504 (10) | 0.2484 (6) | 0.41261 (17) | 0.0816 (13) | |
H10A | 0.710605 | 0.222685 | 0.419194 | 0.098* | |
H10B | 0.458534 | 0.151699 | 0.418309 | 0.098* | |
C11 | 0.5328 (9) | 0.2881 (6) | 0.36655 (15) | 0.0719 (11) | |
C12 | 0.3552 (11) | 0.2271 (7) | 0.34193 (17) | 0.0865 (14) | |
H12A | 0.244757 | 0.158538 | 0.353907 | 0.104* | |
C13 | 0.3404 (13) | 0.2668 (8) | 0.29984 (19) | 0.1018 (19) | |
H13A | 0.220590 | 0.224179 | 0.283566 | 0.122* | |
C14 | 0.4997 (12) | 0.3684 (9) | 0.28164 (18) | 0.1019 (19) | |
H14A | 0.487209 | 0.395894 | 0.253249 | 0.122* | |
C15 | 0.6758 (12) | 0.4286 (10) | 0.3052 (2) | 0.106 (2) | |
H15A | 0.785360 | 0.496659 | 0.292782 | 0.128* | |
C16 | 0.6946 (9) | 0.3899 (8) | 0.34768 (18) | 0.0894 (14) | |
H16A | 0.816131 | 0.432318 | 0.363567 | 0.107* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Se1 | 0.1124 (5) | 0.1187 (5) | 0.0661 (3) | 0.0105 (4) | 0.0205 (3) | −0.0022 (3) |
N1 | 0.092 (3) | 0.117 (4) | 0.064 (2) | −0.005 (3) | −0.018 (2) | 0.022 (2) |
C1 | 0.082 (3) | 0.059 (2) | 0.091 (3) | −0.004 (2) | 0.000 (2) | −0.005 (2) |
C2 | 0.081 (3) | 0.081 (3) | 0.127 (5) | 0.015 (3) | 0.003 (3) | −0.007 (3) |
C3 | 0.086 (4) | 0.092 (4) | 0.170 (7) | 0.004 (4) | −0.033 (4) | 0.008 (5) |
C4 | 0.139 (6) | 0.088 (4) | 0.112 (5) | −0.024 (4) | −0.037 (5) | 0.015 (3) |
C5 | 0.142 (6) | 0.087 (3) | 0.089 (4) | −0.007 (4) | 0.021 (4) | 0.008 (3) |
C6 | 0.080 (3) | 0.074 (3) | 0.093 (3) | 0.005 (2) | 0.012 (3) | 0.010 (2) |
C7 | 0.135 (5) | 0.076 (3) | 0.089 (3) | −0.006 (3) | −0.007 (4) | −0.011 (3) |
C8 | 0.076 (3) | 0.074 (2) | 0.060 (2) | −0.006 (2) | −0.0019 (19) | 0.0083 (18) |
C9 | 0.075 (3) | 0.076 (2) | 0.056 (2) | −0.008 (2) | −0.0111 (17) | 0.0117 (19) |
C10 | 0.088 (4) | 0.073 (2) | 0.083 (3) | 0.008 (3) | −0.010 (2) | 0.006 (2) |
C11 | 0.075 (3) | 0.066 (2) | 0.075 (2) | 0.012 (2) | −0.003 (2) | −0.0074 (19) |
C12 | 0.095 (4) | 0.080 (3) | 0.085 (3) | −0.005 (3) | −0.008 (3) | −0.013 (2) |
C13 | 0.115 (5) | 0.111 (4) | 0.079 (3) | −0.003 (4) | −0.017 (3) | −0.026 (3) |
C14 | 0.118 (4) | 0.124 (5) | 0.064 (3) | 0.015 (4) | 0.010 (3) | −0.013 (3) |
C15 | 0.104 (4) | 0.131 (5) | 0.084 (3) | −0.012 (4) | 0.026 (3) | −0.007 (3) |
C16 | 0.074 (3) | 0.104 (4) | 0.091 (3) | −0.001 (3) | 0.000 (2) | −0.011 (3) |
Se1—C8 | 1.942 (5) | C8—C9 | 1.515 (7) |
Se1—C7 | 1.979 (7) | C8—H8A | 0.9700 |
N1—C9 | 1.464 (6) | C8—H8B | 0.9700 |
N1—H1N | 0.93 (7) | C9—C10 | 1.528 (7) |
N1—H2N | 0.79 (5) | C9—H9A | 0.9800 |
C1—C2 | 1.361 (8) | C10—C11 | 1.498 (7) |
C1—C6 | 1.376 (7) | C10—H10A | 0.9700 |
C1—C7 | 1.504 (8) | C10—H10B | 0.9700 |
C2—C3 | 1.380 (11) | C11—C12 | 1.381 (7) |
C2—H2A | 0.9300 | C11—C16 | 1.387 (8) |
C3—C4 | 1.358 (12) | C12—C13 | 1.375 (8) |
C3—H3A | 0.9300 | C12—H12A | 0.9300 |
C4—C5 | 1.361 (11) | C13—C14 | 1.367 (9) |
C4—H4A | 0.9300 | C13—H13A | 0.9300 |
C5—C6 | 1.365 (10) | C14—C15 | 1.354 (10) |
C5—H5A | 0.9300 | C14—H14A | 0.9300 |
C6—H6A | 0.9300 | C15—C16 | 1.386 (9) |
C7—H7A | 0.9700 | C15—H15A | 0.9300 |
C7—H7B | 0.9700 | C16—H16A | 0.9300 |
C8—Se1—C7 | 97.6 (2) | Se1—C8—H8B | 108.6 |
C9—N1—H1N | 103 (4) | H8A—C8—H8B | 107.6 |
C9—N1—H2N | 108 (3) | N1—C9—C8 | 108.8 (4) |
H1N—N1—H2N | 114 (6) | N1—C9—C10 | 108.8 (4) |
C2—C1—C6 | 118.8 (5) | C8—C9—C10 | 110.7 (4) |
C2—C1—C7 | 121.0 (6) | N1—C9—H9A | 109.5 |
C6—C1—C7 | 120.1 (5) | C8—C9—H9A | 109.5 |
C1—C2—C3 | 120.5 (6) | C10—C9—H9A | 109.5 |
C1—C2—H2A | 119.8 | C11—C10—C9 | 114.1 (4) |
C3—C2—H2A | 119.8 | C11—C10—H10A | 108.7 |
C4—C3—C2 | 119.9 (6) | C9—C10—H10A | 108.7 |
C4—C3—H3A | 120.1 | C11—C10—H10B | 108.7 |
C2—C3—H3A | 120.1 | C9—C10—H10B | 108.7 |
C3—C4—C5 | 120.2 (7) | H10A—C10—H10B | 107.6 |
C3—C4—H4A | 119.9 | C12—C11—C16 | 118.3 (5) |
C5—C4—H4A | 119.9 | C12—C11—C10 | 121.5 (5) |
C4—C5—C6 | 119.9 (7) | C16—C11—C10 | 120.3 (5) |
C4—C5—H5A | 120.1 | C13—C12—C11 | 120.5 (6) |
C6—C5—H5A | 120.1 | C13—C12—H12A | 119.7 |
C5—C6—C1 | 120.8 (6) | C11—C12—H12A | 119.7 |
C5—C6—H6A | 119.6 | C14—C13—C12 | 120.7 (6) |
C1—C6—H6A | 119.6 | C14—C13—H13A | 119.6 |
C1—C7—Se1 | 112.8 (4) | C12—C13—H13A | 119.6 |
C1—C7—H7A | 109.0 | C15—C14—C13 | 119.6 (6) |
Se1—C7—H7A | 109.0 | C15—C14—H14A | 120.2 |
C1—C7—H7B | 109.0 | C13—C14—H14A | 120.2 |
Se1—C7—H7B | 109.0 | C14—C15—C16 | 120.7 (6) |
H7A—C7—H7B | 107.8 | C14—C15—H15A | 119.6 |
C9—C8—Se1 | 114.6 (3) | C16—C15—H15A | 119.6 |
C9—C8—H8A | 108.6 | C15—C16—C11 | 120.2 (5) |
Se1—C8—H8A | 108.6 | C15—C16—H16A | 119.9 |
C9—C8—H8B | 108.6 | C11—C16—H16A | 119.9 |
C6—C1—C2—C3 | −1.4 (8) | N1—C9—C10—C11 | −178.8 (4) |
C7—C1—C2—C3 | 177.6 (6) | C8—C9—C10—C11 | 61.6 (6) |
C1—C2—C3—C4 | 1.2 (10) | C9—C10—C11—C12 | −102.5 (6) |
C2—C3—C4—C5 | −0.5 (11) | C9—C10—C11—C16 | 76.7 (6) |
C3—C4—C5—C6 | −0.1 (10) | C16—C11—C12—C13 | 0.0 (8) |
C4—C5—C6—C1 | 0.0 (9) | C10—C11—C12—C13 | 179.1 (5) |
C2—C1—C6—C5 | 0.8 (8) | C11—C12—C13—C14 | −0.5 (9) |
C7—C1—C6—C5 | −178.2 (5) | C12—C13—C14—C15 | 0.9 (10) |
C2—C1—C7—Se1 | 81.1 (6) | C13—C14—C15—C16 | −0.8 (11) |
C6—C1—C7—Se1 | −99.9 (6) | C14—C15—C16—C11 | 0.2 (10) |
Se1—C8—C9—N1 | 61.1 (5) | C12—C11—C16—C15 | 0.2 (8) |
Se1—C8—C9—C10 | −179.4 (3) | C10—C11—C16—C15 | −179.0 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···Se1 | 0.93 (7) | 2.69 (7) | 3.239 (7) | 119 (5) |
N1—H2N···N1i | 0.79 (5) | 2.56 (5) | 3.319 (5) | 161 (4) |
Symmetry code: (i) x+1/2, −y+1/2, −z+1. |
Acknowledgements
We are grateful to the facilities at BSPM Lab, Albert Einstein Block, University College of Science, Tumkur University, for the support related to crystallography work.
Funding information
Funding for this research was provided by: DST–SERB, Government of India, (grant No. DST/SR/S-1/IC76/2010(G) to PRK); NSF-MRI Program (grant No. CHE-1039027 to JPJ).
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