Dihydride versus dihydrogen complex; the photochemical reaction of [(η5;-C5H5)M(CO)4] (M = V, Nb and Ta) with hydrogen in solution at both cryogenic and room temperatures

Mark T. Haward, Michael W. George, Paul Hamley, Martyn Poliakoff

Research output: Journal PublicationArticlepeer-review

34 Citations (Scopus)

Abstract

UV photolysis of [cpM(CO)4] (cp = η5-C 5H5; M = V, Nb and Ta) and H2has been studied by IR spectroscopy both in n-heptane solution at 25°C and in liquid Xenon solution at -110 to -45°C; for V, the reaction leads to formation of the non-classical complex [cpV(CO)32-H2)] while, for Ta, the dihydride [cpTa(CO)3H2] is formed; for Nb, there is a temperature dependent equilibrium between the classical [cpNb(CO)3H2] and non-classical [cpNb(CO) 32-H2)] compounds, which presents an unusual opportunity to study the formation of these species using nanosecond Time-resolved IR spectroscopy (TRIR).

Original languageEnglish
Pages (from-to)1101-1103
Number of pages3
JournalChemical Communications
Issue number16
DOIs
Publication statusPublished - 1991
Externally publishedYes

ASJC Scopus subject areas

  • Molecular Medicine

Fingerprint

Dive into the research topics of 'Dihydride versus dihydrogen complex; the photochemical reaction of [(η5;-C5H5)M(CO)4] (M = V, Nb and Ta) with hydrogen in solution at both cryogenic and room temperatures'. Together they form a unique fingerprint.

Cite this