Ring slippage of the indenyl occurs upon dissolution of the complexes [η5-IndM(CO)2L2]BF4 (M=Mo of W; L=NCMe or dimethylformamide) in an excess of L, to give [(η3-Ind)M(CO)2L3]Bf4. Other ring-slipped complexes synthesized are [(η3-Ind)Mo(CO)2L3]BF4 (L3=HC(pz)3, [HB(pz)3]−, Me3tacn or en(NCMe)}). Addition of NCMe or an excess of L failed to give ring slippage in [η5-IndMo(CO)2L2]BF4 (L2=bipy, dppe
                                    茚基的环滑动时发生的复合物的溶解[ η 5 -IndM(CO)2大号2 ] BF 4(W的M =
钼; L = NCMe或二甲基甲酰胺)在过量的升,得到[(η 3 -Ind)M(CO)2 L 3 ] Bf 4。其他环滑落合成络合物[(η 3 -Ind)的Mo(CO)2大号3 ] BF 4(L 3 = HC(
PZ)3,[HB(
PZ)3 ] -中,Me 3 TACN或EN( NCMe)})。添加NCMe或过量的L未能在[η 5 -IndMo(CO)2大号2 ] BF 4(L 2 =联
吡啶,
DPPE,(PME 3)2,P(OME)3 } 2或
三磷酸)。NMR和X射线研究揭示了大量折叠的η 3 -
茚基环。