Antimony(V) catecholato complexes based on 4,5-dialkylsubstituted o-benzoquinone. The spectroscopic and electrochemical studies. Crystal structure of [Ph4Sb]+[Ph2Sb(4,5-Cat)2]−
作者:Andrey I. Poddel’sky、Ivan V. Smolyaninov、Nikolay V. Somov、Nadezhda T. Berberova、Vladimir K. Cherkasov、Gleb A. Abakumov
DOI:10.1016/j.jorganchem.2009.11.022
日期:2010.2
4-tetramethyl-butane-1,4-diyl)-catecholate). In polar solvents (CHCl3, acetone) complex 1 transforms easily to ionic complex compound [Ph4Sb]+[Ph2Sb(4,5-Cat)2]− (3) with diphenyl-bis-[4,5-(1,1,4,4-tetramethyl-butane-1,4-diyl)-catecholato]antimony(V) complex anion. Complexes were characterized by IR, 1H, 13C NMR spectroscopy, cyclic voltammometry. Molecular structure of 3·CHCl3 was confirmed by X-ray analysis
三苯基锑(III)和三乙基锑(III)容易与4,5-(1,1,4,4-四甲基丁烷-1,4-二基)-邻苯醌反应形成邻苯二酚络合物R 3 Sb(4,5 -Cat)(R = Ph(1),Et(2); 4,5-Cat是双阴离子4,5-(1,1,4,4-四甲基丁烷-1,4-二基)-儿茶酚酸酯)。在极性溶剂(三氯甲烷3,丙酮)配合物1点的变换容易离子配合物化合物[PH 4的Sb] + [PH 2的Sb(4,5-猫)2 ] - (3)与二苯基-双- [4,5- (1,1,4,4-四甲基丁烷-1,4-二基)-邻苯二酚]锑(V)络合物阴离子。复合物的特征在于红外光谱,1 H,13 C NMR光谱,循环伏安法。通过X射线分析确认了3 ·CHCl 3的分子结构。1和3的循环伏安法表明,两种络合物均经历可逆的单电子氧化,转变为相当稳定的顺磁性o-半喹诺酮物种[Ph 3 Sb(4,5-SQ)] +和[Ph 2 Sb(4