THIOPHENE C-S BOND-CLEAVAGE BY RHODIUM AND IRIDIUM - AN UNPRECEDENTED BRIDGING MODE OF THE OPEN C4H4S FRAGMENT

被引:17
作者
BACCHI, A
BIANCHINI, C
HERRERA, V
JIMENEZ, MV
MEALLI, C
MELI, A
MONETI, S
PERUZZINI, M
SANCHEZDELGADO, RA
VIZZA, F
机构
[1] CNR,IST STUDIO STEREOCHIM & ENERGET COMPOSTI COOR,I-50132 FLORENCE,ITALY
[2] INST VENEZOLANO INVEST CIENT,CARACAS 1020A,VENEZUELA
[3] UNIV PARMA,DIPARTIMENTO CHIM GEN & INORGAN,I-43100 PARMA,ITALY
关键词
D O I
10.1039/c39950000921
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The complexes [{(triphos)M}(2)(mu-eta(3),eta(4)-SC4H4)](Y)(2) (M = Ir, Y = BPh(4); M = Rh, Y = PF6) are obtained by reaction of thiophene with either [(triphos)Ir(eta(4)-C6H6)]BPh(4) in Me(2)SO at 80 degrees C or [(triphos)RhCl(C2H4)] + TlPF6 in THF at room temperature; a single-crystal X-ray diffraction analysis of the iridium complex shows that an open C4H4S moiety sits astride two metal centres; the bridge-bonding mode implies the sharing of four electron pairs with the metals.
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页码:921 / 922
页数:2
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