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1 Bulletin of the Polish Academy of Sciences. Chemistry

1 1998

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New phosphinidene- and phosphido-bridged silver clusters

Fenske D., Simon F., Eichhöfer A.

Bulletin of the Polish Academy of Sciences. Chemistry

1998

Vol. 46, No. 3

221-227

From the reaction of AgCl with Ph2PSiMe3 and PhP(SiMe3)2 in the presence of PrcPr3, it is possible to obtain the silver clusters (Ag24(PPh)lo(PPh2)4(PrcPr3)6] (1), which contains both phosphinidene and phosphido bridges, and the ionic cluster compounds (Ag2o(Ph)12Cl(PnPr3)lo)+(Ag24(PPh)10 Cl5(PnPr3)3]-(2). Both compounds were characterised by single crystal X-ray crystallography. Compound 1 crystallises in the space group P2ln with cell constants a =12.134(7) A, b = 22.194(6) A, c = 28.642(12) A, ß = 91.83(3)o, V = 10886(7) A3 (R = 0.059 for 14219 independent reflections). 2 crystallises in the space group P 1 with the cell constants a =19.03(3) Á, b = 33.711(4) A, c = 35.598(1) a = 97.40(2)(o),ß =103.47(2)o, r = 91.96(1)o, V = 21978(8) A(3)(R = 0.063 for 52833 independent reflections).