temperature. The molecular structure was determined by single-crystal X-ray diffraction. The molecule consists of two oxygen-bridged Cp′3V2S2 units. The oxygen-bonded vanadium atoms have each lost one Cp′ group in a reaction that is assumed to be the hydrolysis of Cp′2V(μ-S)2VCp′Cl (3) to give the product (4). The most striking structural feature of the molecule is the presence of asymmetrical V-S bond distances;
[CP' 2 V(μ -S)2 VCP'] 2(μ -O)(4)(CP'= η 5 -CH 3 Ç 5 ħ 4)从的
钠还原反应中分离。的形式环(CH 3 ASS)3,4(1)和CP' 2的
VCl 2在THF中在室温下。通过单晶X射线衍射确定分子结构。该分子由两个氧桥CP'的3 V 2 s ^ 2单位。的氧键合的
钒原子具有每个丢失的一个CP'组中的被假定为CP的
水解反应“ 2 V(μ -S)2
VCa href=https://www.molaid.com/MS_6449 target="_blank">CP'Cl(3),得到产物(4)。分子最引人注目的结构特征是不对称VS键距的存在。与氧键合的
钒原子的VS距离(2.17-2.21Å)比全
硫桥接的
钒原子(2.36-2.39Å)的VS距离要短得多。从其1 H NMR光谱中发现,该络合物是抗磁性的,可以通过存在V(IV)-V(IV)键或存在混合氧化态V(III)和V( V)。