Synthesis of complexes with molybdenum-platinum bonds from the alkylidyne(carborane)molybdenum reagent [NEt4][Mo(CC6H4Me-4)(CO)2(η5-C2B9H9Me2)]

✍ Scribed by John C. Jeffery; Mark D. Mortimer; F.Gordon A. Stone

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 924 KB
• Volume: 198-200
• Category: Article
• ISSN: 0020-1693
• DOI: 10.1016/s0020-1693(00)92403-4

✦ Synopsis

Treatment of [tram-PtH(Cl)(PEt&], in tetrahydrofuran at -30 "C, with [NEt,][Mo(=CCJ&Me-4)(CO),(q' -&B&Me,)], in the presence of TlBF,, affords the thermally labile complex [MoPt(CO),(PEt&{$-~B&(CH,C,&Me-4)Me2}]. Addition of donor molecules L [CO, PEt, or dppm (Ph2PCH,PPh2)] to the latter at low temperatures yields the stable compounds [MoPt(~-H){CL-cT:~5-C2B,H,(CH,C,~Me-4)Me3(CO),(L)(PEt~)*]. The reaction between [cis-PtCl(Me)(PMe,Ph),] and [NEt.,][Mo(=CC,&Me-4)(CO),($-&B&Me,)] in tetrahydrofuran, in the presence of TlBF,, gives a mixture of the dimetal compounds [MoPt(p-CC&Me-4)(w-u:$-GB&IH,Me,)(PMe,Ph)] and [MoPt(~-CCsH~Me-4)(~-cT:175-~B~H,Me,)(CO),(PMe,Ph),], from which the latter may be isolated pure by addition of PMe,Ph. The NMR spectra (' H, "C(' H}, "B{' H} and 31P{' H}) of the new complexes are reported and discussed in relation to the structures proposed. *This article is Part 114 of a series on the synthesis and structures of complexes containing bonds between different transition elements.