Studies on solid state reactions of coordination compounds——XLⅦ.Solid state syntheses and crystal structures of cluster compounds {Cu3MoS3I}（PPh3）3S and {Cu3WS3Br} （PPh3）3S

Reactions of [NH][MS]（M=Mo,W）,CuX（X=Br,I）and PPhin the solid state producedfour mixed-metal sulfur containing clusters{CuMSX}（PPh）S（M=Mo,W;X=Br,I）,two of which（1:M=Mo,X=I;2:M=W,X=Br）were structurally determined.Crystals of 1 and 2 are triclinic,space group P(1:a=11.895（3）,b=13.107（1）,c=20.473（2）,α=74.95（6）,β=84.87（8）,γ=64.27（7）°,Z=2,V=2776.1 ,Rw=0.064 for 6443 observed reflections.2:α=11.876 （1）,b=13.065 （2）,c=20.325（2）,α=74.95（1）,β=85.39（1）,γ=64.09（1）°,Z=2,V=2737.3,R=0.055 for 5303 observedreflections).The results of the structure determination showed that the central units of the two cubane-like cluster compounds are composed of four metal atoms and four non-metal atoms situated at alter-nate comers.The differences of cubane-like cluster compounds obtained from solid state reactions andfrom solution reactions are discussed.