Affordable Access

Terminal and four-coordinate vanadium(IV) phosphinidene complexes. A pseudo Jahn-Teller effect of second order stabilizing the V-P multiple bond.

Authors
  • Basuli, Falguni
  • Bailey, Brad C
  • Huffman, John C
  • Baik, Mu-Hyun
  • Mindiola, Daniel J
Type
Published Article
Journal
Journal of the American Chemical Society
Publication Date
Feb 25, 2004
Volume
126
Issue
7
Pages
1924–1925
Identifiers
PMID: 14971911
Source
Medline
License
Unknown

Abstract

Treatment of the four-coordinate vanadium neopentylidene (Nacnac)V=CHtBu(I) (Nacnac- = [Ar]NC(Me)CHC(Me)N[Ar], Ar = 2,6-iPr2C6H3) with a bulky primary lithium phosphide LiPHR (R = 2,4,6-iPr3C6H2, 2,4,6-tBu3C6H2) leads to alpha-hydrogen migration concomitant with the formation of a four-coordinate vanadium complex containing a terminal phosphinidene functionality (Nacnac)V=PR(CH2tBu). The crystal structures for the vanadium phosphinidene complexes prepared herein were determined by single-crystal X-ray diffraction methods. Solution EPR and magnetic measurements of the vanadium phosphinidenes are also in accordance with such systems containing a V(IV) metal center, and DFT calculations indicate the V=P bond to be stabilized through a pseudo Jahn-Teller effect of second order.

Report this publication

Statistics

Seen <100 times