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.)

0576782 - FZÚ 2024 RIV GB eng J - Článek v odborném periodiku
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
Grant CEP: GA MŠMT LM2023051
Institucionální podpora: RVO:68378271
Klíčová slova: phosphoramide * phosphinamide * single-enantiomer * diastereotopic groups * X-ray crystallography * crystal structure
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 0.9, rok: 2022
Způsob publikování: 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.
Trvalý link: https://hdl.handle.net/11104/0346194