A New Ionic Trimolybdenum Cluster Compound:〔Mo_3S_7(S_2P(iprO)_2)_3〕〔S_2P(iprO)_2〕

1INTRODUCTIoNInthepastdecades,thechemistryofMo-SclusterscontainingaMo,(p,-S)(p-S,),j corehasbeenstudiedtextensively,andmanysuchkindofcompoundshavebeensynthesized.(1'2'3'4iHowever,fewcompoundscontainingadiscreteclus-tercationhavebeenreported.5iInthispaper,wereportthesynthesisandstructureofthetitlecompound.Thisisanewexampleoftrimolybdenumclustercontainingadiscreteclustercation.2EXPERIMENTALAllmanipulationwerecarriedoutinair.2.1Synthesis0fM0,S,(S,P(iprO),),jtS,P(iprO),jAmixture…

A New Ionic Trimolybdenum Cluster Compound:〔Mo_3S_7 (S_2P(iprO)_2)_3〕〔S_2P(iprO)_2]

The title compound ttris-(diisopropyldithiophosphato)tris-μ-disulfidoμ3,-sulfido-cvclo-trimolybdenumj (3Mo-Mo) diisopropyldithiophosphate], Mo3S7 (S2P(iprO)2)3] S2P(iprO)2] (Mr=1365. 39) is an ionic species which consists of a discretecluster cation Mo3S7 (S2P (iprO)2)3] + (ipr = isopropyl) and an anion S2P (iprO)2]-It was synthesized from the reaction of (NH4)2MoS4 with HS2P (iprO)2. Crystallo-graphic data for its crystal: space group for 7356 independent reflec-'tions with The structure analysis reveals that the cation contains a typical(Mo3 (μ3,-S) (μ-S2)3]+ cluster core in which three molybdenum atoms form an isoscelestriangle;the structure of the free diisopropyldithiophosphate anion S2P (iprO)2]- isdifferent obviously from the coordinated one.