Àrias Òscar, Brandhorst Kai, Baabe Dirk, Freytag Matthias, Jones Peter G, Tamm Matthias
Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany.
Dalton Trans. 2017 Apr 5;46(14):4737-4748. doi: 10.1039/c7dt00305f.
The reactions of the molybdenum alkylidyne complex [MesC[triple bond, length as m-dash]Mo{OCMe(CF)}] (1) with the diaminoacetylenes RNC[triple bond, length as m-dash]CNR (2, NR = 4-methylpiperidinyl; 3, NR = NEt; Mes = 2,4,6-trimethylphenyl) afforded the metallacyclobutadiene (MCBD) complexes 4 and 5. In contrast to all other MCBD complexes, 4 and 5 are paramagnetic and best described as Mo(iv) species containing an anionic diaminodicarbene of the type [(RN)CC(Mes)C(NR)].
钼亚烷基配合物[MesC≡Mo{OCMe(CF)}] (1) 与二氨基乙炔RNC≡CNR (2, NR = 4-甲基哌啶基; 3, NR = NEt; Mes = 2,4,6-三甲基苯基) 反应生成金属环丁二烯 (MCBD) 配合物4和5。与所有其他MCBD配合物不同，4和5是顺磁性的，最好描述为含有[(RN)CC(Mes)C(NR)] 型阴离子二氨基二卡宾的Mo(iv) 物种。
