group. Replacement of the aquo ligand in complex 1 with nitrogen ligands or phosphine resulted in downshift in ν(Rh–C). The ν(Rh–C) for trans-[Rh(bpb)(CH3)(L)] was found to decrease in the order L: PMe2Ph≫4-Xpy∼BzIm>H2O, consistent the order of trans influence of L. For [M(TTP)(CH3)] (M=Co, Rh, Ir, Ga, or In) the M–C force constant was found to decrease in the orders Ir>Rh>Co and Ga>In, consistent with
的相互作用反式-的[Rh(BPB)(CH 3)(H 2 O)](1)[BPB = 1,2-双(2- pyridinecarboxamido)苯]与路易斯碱L,得到相应加合物的反式- [
铑( bpb)(CH 3)(L)],其中L = 4-取代
吡啶4-Xpy(X = H(2),t Bu(3),NMe 2(4)CN(5)),PMe 2 Ph(6)或
苯并咪唑(7)。配合物3和6的结构已经通过X射线晶体学确定。复数6中的Rh–C距离(2.095(6)Å)比复合物3(2.02(1)Å)长,表明PMe 2 Ph具有比4- t Bupy更大的反式影响。反式-[Rh(bpb)(CH 3)(L)]和[M(
TTP)(CH 3)]的
金属-碳拉伸频率[
TTP = 5,10,15,20-四(4-甲基苯基)
卟啉二价阴离子 M = Rh,Ir,Ga,In]通过近红外FT拉曼光谱法测定。配合物1在562 cm -1处显示ν