ESR Studies on Bis (O, O'-diethyldithiophosphato) Oxovanadium [IV] in Ether Solutions

抄録

ESR studies have been made on bis (O, O'-diethyldithiophosphato) oxovanadium [IV], VOdtp₂, in ethyl ether, isopropyl ether, η-butyl ether, and tetrahydrofuran solutions. It has been found that at lower temperatures VOdtp₂ reacts with each of the ethers to form an adduct, VOdtp₂·(R₂O), with structure characterized by the coordination of ether molecule to the equatorial position. The equilibrium constant for the VOdtp₂·(R₂O) formation has also been evaluated ; it increased with increasing basicity of the ether (tetrahydrofuran>ethyl ether>isopropyl ether-n-butyl ether).