SYNTHESIS, STRUCTURE, AND REACTIVITY OF THE CHIRAL RHENIUM PHENYL COMPLEX (ETA-5-C5H5)RE(NO)(PPH3)(C6H5) Academic Article uri icon

abstract

  • Reaction of (5-C5H6)Re(NO)(PPh3)(Cl) and C6H5Cu gives chiral, racemic phenyl complex (5-C5H5)-Re(NO)(PPh3)(C6H5) (1, 82-92%), which undergoes a spontaneous resolution when crystallized from CH2Cl2/hexanes. The crystal structure (monoclinic, P21,a = 9.261 (2) , b = 14.142 (3) , c = 10.722 (2) , = 112.74 (1), Z = 2) exhibits an unexpected Re-C conformation that places one ortho carbon in the region between the nitrosyl and PPh3 ligands. Reaction of 1 and HBF4-O(C2H5)2 in CH2Cl2 at -80 C gives, as the first species detected by NMR, ^-benzene complex [(5-C5H6)Re(NO)(PPh3) (2-C6H6)]+BF4-(2). Between -70 and -40 C, 2 converts to dichloromethane complex [(5-C5H5)Re(NO)(PPh3)-(ClCH2Cl)]+BF4- (3), even in the presence of excess benzene. Reaction of 1 and Ph3C+PF6- in CH2Cl2 at 80 C gives bis(vinyl)alkylidene complex [(5-C5H5)Re(NO)(PPh3) [inline formula omitted] +PF6- (7), which decomposes above -40 C to 3 and other products that ultimately yield tetraphenylmethane. 1990, American Chemical Society. All rights reserved.

published proceedings

  • ORGANOMETALLICS

author list (cited authors)

  • AGBOSSOU, S. K., BODNER, G. S., PATTON, A. T., & GLADYSZ, J. A.

citation count

  • 20

complete list of authors

  • AGBOSSOU, SK||BODNER, GS||PATTON, AT||GLADYSZ, JA

publication date

  • April 1990