Radical cation-radical anion salts: Molybdenum complexes containing the [TCNQ]•− or [TCNE]•− radical anions. X-ray crystal structure of [Mo(Et2NCS2)4](TCNQ)
作者:M. Decoster、F. Conan、J.E. Guerchais、Y. Le Mest、J. Sala Pala、J.C. Jeffery、E. Faulques、A. Leblanc、P. Molinie
DOI:10.1016/0277-5387(94)00487-y
日期:1995.7
complexes [Mo(dtc)4] 1 (dtc = Et2NCS2 for 1a and Me2NCS2 for 1b) and TCNQ produced the 1 : 1 derivatives [Mo(dtc)4](TCNQ) 2. Subsequent reaction of 2 with TCNQ gave the 1 : 2 complexes 3 [Mo(dtc)4](TCNQ)2. Complexes 1 reacted with TCNE under nitrogen to give the 1 : 1 compounds [Mo(dtc)4](TCNE) 4 while under ambient conditions the pentacyanopropenide derivatives [Mo(dtc)4](NC)2CC(CN)C(CN)2] 5 were obtained
[沫(DTC)的钼(IV)配合物之间的反应4 ] 1(DTC =的Et 2 NCS 2为图1A和Me 2 NCS 2为图1b)和TCNQ产生的1:1的衍生物[沫(DTC)4 ]( TCNQ)2.随后反应2与TCNQ,得到1:2个络合物3 [沫(DTC)4 ](TCNQ)2。在氮气氛下,配合物1与TCNE反应生成1:1化合物[Mo(dtc)4 ](TCNE)4而在环境条件下的pentacyanopropenide衍生物[沫(DTC)4 ](NC)2 CC(CN)C(CN)2 ] 5获得。在溶液中,循环伏安法和ESR研究表明,存在所有类型的钼(V)自由基阳离子[Mo(dtc)4 ] •−络合物,该络合物与自由基阴离子TCNX •−在2中相关(X = Q)和4(X = E),并用1:在中性和阴离子物种TCNQ 1混合物3。已经通过单晶X射线衍射研究了配合物2a。晶体结构由单体TCNQ •自由基阴离子和[Mo(dtc)4