Structural characterization of the acetonitrile complex NbCl5(MeCN)
作者:Gerald R. Willey、Timothy J. Woodman、Michael G.B. Drew
DOI:10.1016/0277-5387(96)00314-2
日期:1997.1
The monosolvate (MeCN) of niobium(V) chloride has been structurally characterized. The metal is six coordinate with a somewhat distorted octahedral geometry in which the four equatorial chlorine atoms are coplanar but are clearly bent towards the bound axial acetonitrile ligand, mean NaxNbCleq 83.62(12)°. The NbCl bond distances lie in the range 2.249(2)–2.319(2) Å and the metal to ligand distance
Hydrolysis of acetonitrile in the presence of NbCl5
作者:G.Robert Lee、Joe A. Crayston
DOI:10.1016/0277-5387(95)00432-7
日期:1996.6
Abstract The mechanism of the hydrolysis of acetonitrile to ammonium ion in the presence of NbCl 5 has been investigated. Two possible mechanisms are discussed: metal-assisted (catalysed) hydrolysis and a mechanism based on the addition of alcohol and HCl to the CN triple bond to give initially an imidate hydrochloride salt, which may undergo further hydrolysis to the ester and ammonium ion (Pinner synthesis)
A thermochemical and spectroscopic investigation of some molecular addition complexes of niobium and tantalum pentachlorides with oxygen- and sulphur-containing ligands