TY - JOUR
T1 - 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
AU - Haward, Mark T.
AU - George, Michael W.
AU - Hamley, Paul
AU - Poliakoff, Martyn
N1 - Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
PY - 1991
Y1 - 1991
N2 - 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)3(η2-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) 3(η2-H2)] compounds, which presents an unusual opportunity to study the formation of these species using nanosecond Time-resolved IR spectroscopy (TRIR).
AB - 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)3(η2-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) 3(η2-H2)] compounds, which presents an unusual opportunity to study the formation of these species using nanosecond Time-resolved IR spectroscopy (TRIR).
UR - http://www.scopus.com/inward/record.url?scp=37049079775&partnerID=8YFLogxK
U2 - 10.1039/C39910001101
DO - 10.1039/C39910001101
M3 - Article
AN - SCOPUS:37049079775
SN - 0022-4936
SP - 1101
EP - 1103
JO - Chemical Communications
JF - Chemical Communications
IS - 16
ER -