Effect of ring substituents on formation rates for vanadium-arene clusters

Masaaki Hirano, Ken Judai, Atsushi Nakajima, Koji Kaya

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Vanadium-arene complexes, Vn(arene)m (arene = benzene (C6H6), toluene (C6H5CH3), and fluorobenzene (C6H5F)), were synthesized by the reaction of laser-vaporized vanadium atoms with arene vapor. Both the analysis of the mass spectra and the measurements of their ionization energies indicate that both Vn(C6H5-CH3)m and Vn(C6H5F)m, clusters take a multiple-decker sandwich structure similar to the structure of Vn-(C6H6)m clusters. The relative reactivity between benzene and toluene toward vanadium was also determined; toluene is 4 times as reactive as benzene for V1(C6H5CH3)1/V 1(C6H6)1 production and 2 times for V1(C6H5-CH3)2/V 1(C6H6)2 production because of reactivity enhancement of the electron-donating ring substituent. In the case of the Vn(C6H5F)m cluster, it is found that the electron-withdrawing ring substituent of fluorobenzene results in much less reactivity than is observed for benzene and toluene.

Original languageEnglish
Pages (from-to)4893-4899
Number of pages7
JournalJournal of Physical Chemistry A
Volume101
Issue number27
DOIs
Publication statusPublished - 1997 Jul 3

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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