Number of the records: 1
Diastereotopic groups in two new single-enantiomer structures (R.sub.2./sub.)P(O)[NH-(+)CH(C.sub.2./sub.H.sub.5./sub.)-(C.sub.6./sub.H.sub.5./sub.)] (R = OC.sub.6./sub.H.sub.5./sub. and C.sub.6./sub.H.sub.5./sub.)
- 1.0576782 - FZÚ 2024 RIV GB eng J - Journal Article
Eslami, F. - Pourayoubi, M. - Sabbaghi, F. - Skořepová, Eliška - Dušek, Michal - Baniyaghoob, S.
Diastereotopic groups in two new single-enantiomer structures (R2)P(O)[NH-(+)CH(C2H5)-(C6H5)] (R = OC6H5 and C6H5).
Acta Crystallographica Section E-Crystallographic Communications. Roč. 79, Aug. (2023), s. 769-776. ISSN 2056-9890. E-ISSN 2056-9890
R&D Projects: GA MŠMT LM2023051
Institutional support: RVO:68378271
Keywords : phosphoramide * phosphinamide * single-enantiomer * diastereotopic groups * X-ray crystallography * crystal structure
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 0.9, year: 2022
Method of publishing: Open access
The crystal structures of two single-enantiomer compounds, i.e. diphenyl [(R)-(+)-α-ethylbenzylamido]phosphate, C21H22NO3P (I), and N-[(R)-(+)-α-ethylbenzyl]-P,P-diphenylphosphinic amide, C21H22NOP (II), were studied. The different environments at the phosphorus atoms, (O)2P(O)(N) and (C)2P(O)(N), allow the P=O/P—N bond strengths to be compared, as well as the N—H...O=P hydrogen-bond strengths, and P=O/N—H vibrations. The following characteristics related to diastereotopic C6H5O/C6H5 groups in I/II were considered: geometry parameters, contributions to the crystal packing, solution 13C/1H NMR chemical shifts, conformations, and NMR coupling constants.
Permanent Link: https://hdl.handle.net/11104/0346194
File Download Size Commentary Version Access 0576782.pdf 0 1.1 MB CC-BY licence Publisher’s postprint open-access
Number of the records: 1