respectively. In contrast, in complexes 4, 5 and 7b, two Rh or Ir atoms are η6-coordinated to the upper and lower decks in the pcp ligand to provide a dinuclear structure. The Rh or Ir atoms are similarly supported by diene ligands. Two coordinating cod ligands in pcp complexes 4 and 7b are located in a staggered conformation against the pcp ligand, whereas two nbd ligands in complex 5 are located in an eclipse
我们系统制备的Rh和Ir中的9
[2.2]对环芳烷络合物,
铑[Rh(η 6 -pCP)(C 2 H ^ 4)2 ] BF 4 ·THF 1 ·THF(PCP =
[2.2]对环芳烷),
铑[Rh(η 6 -pCP)(二烯)] BF 4(二烯=
1,5-环辛二烯(COD)2 ·CH 2
氯2 ;
2,5-降冰片二烯(NBD)3),
铑[Rh 2(η 6,η 6 -pCP )(二烯)2 ](BF 4)2(二烯=鳕鱼4 ; NBD 5),物[Ir(η 6-pCP)(COD)] X(X = BF 4 6A ; CLO 4图6b ·CH 2
氯2)和物[Ir 2(η 6,η 6 -pCP)(COD)2 ] X 2(X = BF 4 7a中; ClO 4 7b),其七个结构在晶体学上得到了表征。在配合物1 ·THF,2 ·CH 2
氯2,3和图6b ·CH 2
氯2中,每个上的Rh或IR原子是η 6-键合到pCP