compounds TaCp∗ Cp″H(L) (L = CO 13, C2H414, RNC 15). All the new complexes were characterized by usual IR and NMR spectroscopic methods. The crystal structures of 3 and 12 were determined by X-ray diffraction studies. Crystals of 3 are orthorhombic, space group P212121, with Z = 4 in a unit cell of dimensions , . Crystals of 12 are triclinic, space group with Z = 2 in a unit cell of dimensions , , α = 75.94(2)°
MCa href=https://www.molaid.com/MS_6449 target="_blank">CP * Cl 4,()与LiCP(CP = C 5 H 4(SiMe 3)(CP'); C 5 H 3(SiMe 3)2(CP''))和
钠汞齐反应,以1:1:1的比例进行反应摩尔比,得到顺二
环戊二烯基
铌和
钽(IV)配合物,MCP * CPCL 2,(M =
铌,CP = CP' 1 ; CP“ 2 ; M =
钽,CP = CP' 3 ; CP” 4)。的反应3和4与当量的PCl的5得到反磁性trichlorocomplexes TACP * CPCL 3,(CP = CP' 5 ; CP“ 6),同时用干氧氧化2给出了抗磁性双核配合物[TACP * CPCL 2 ] 2(μ-O),(CP = CP' 7 ; CP“ 8),并用空气被转化成相应的oxoderivatives TACP * CPCL(O),(CP = CP' 9 ; CP” 10)。用稍微过量的
氢化铝锂处理化合物3和4可得到三氢配合物TACP