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Clark RW, Guzei IA, Jin WC, Landis CR: A 1,2,4-diazaphospholane complex of rhodium. Acta Crystallogr C. 2003 Apr;59(Pt 4):M144-5. Epub 2003 Mar 21. The crystal structure of a prospective olefin catalyst, namely [2-[1-acetyl-5-(2-hydroxyphenyl)-4-phenyl-1,2,4-diazaphospholan-3-yl] pheny l acetate-kappaP] chloro (eta (4)-cycloocta-1,5-diene) rhodium (I) dichloromethane solvate, [RhCl (C (8) H (12))(C (24) H (23) N (2) O (4) P)].CH (2) Cl (2), has been determined at 173 K. The five-membered heterocycle of the phosphine ligand is in a slightly distorted twist conformation. An intramolecular N1-H1.Cl1 hydrogen bond contributes to the adopted conformation and may additionally participate in secondary interactions with substrates during catalysis. |
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