TY - JOUR
T1 - Black body radiation induced hydrogen formation in hydrated vanadium cations V+(H2O)n
AU - Fox, Brigitte S.
AU - Balteanu, Iulia
AU - Balaj, O. Petru
AU - Liu, Haichuan
AU - Beyer, Martin K.
AU - Bondybey, Vladimir E.
PY - 2002
Y1 - 2002
N2 - Hydrated vanadium cations V+(H2O)n, n = 5-30, are stored in the collision-free environment of an FT-ICR mass spectrometer and their reactions due to absorption of black body radiation are studied. Besides the loss of water ligands, the clusters show two different intracluster redox reactions, whose branching ratios are strongly size-dependent. Oxidation to the +II state results in V(OH)+(H2O)n ions, and a concurrent release of atomic hydrogen. Alternatively V(OH)2+(H2O)n clusters can form leaving vanadium in the +III state, common in aqueous solutions, and simultaneously molecular H2 evaporates from the cluster. This behavior reflects the properties of transition metals, and the ability of vanadium to form stable compounds in a variety of oxidation states, and differs from the previously studied intracluster reactions involving the hydrated monovalent main group metals Mg+ and Al+. These only react to their preferred oxidation states, MgOH+ and Al(OH)2+, respectively.
AB - Hydrated vanadium cations V+(H2O)n, n = 5-30, are stored in the collision-free environment of an FT-ICR mass spectrometer and their reactions due to absorption of black body radiation are studied. Besides the loss of water ligands, the clusters show two different intracluster redox reactions, whose branching ratios are strongly size-dependent. Oxidation to the +II state results in V(OH)+(H2O)n ions, and a concurrent release of atomic hydrogen. Alternatively V(OH)2+(H2O)n clusters can form leaving vanadium in the +III state, common in aqueous solutions, and simultaneously molecular H2 evaporates from the cluster. This behavior reflects the properties of transition metals, and the ability of vanadium to form stable compounds in a variety of oxidation states, and differs from the previously studied intracluster reactions involving the hydrated monovalent main group metals Mg+ and Al+. These only react to their preferred oxidation states, MgOH+ and Al(OH)2+, respectively.
UR - http://www.scopus.com/inward/record.url?scp=0036100773&partnerID=8YFLogxK
U2 - 10.1039/b110849b
DO - 10.1039/b110849b
M3 - Article
AN - SCOPUS:0036100773
SN - 1463-9076
VL - 4
SP - 2224
EP - 2228
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
IS - 11
ER -