SCHEDULED MAINTENANCE
Synthesis of carbido and related derivatives from calcium carbide and ruthenium carbonyl clusters
Abstract
Reactions between a carbide anion (C22−) source and ruthenium cluster carbonyls are reported for the first time. The reaction between CaC2 and Ru3(CO)12, carried out in thf, affords putative Ca[Ru10(C)2(CO)24], which can be converted into [ppn]2[Ru10(C)2(CO)24]
(1) in overall 60% yield. The X-ray structure of 1 as its 2CH2C12 solvate is described, together with those of the minor products Ru4(μ4-HC2H)2(μ-CO)2(CO)9
(3), Ru6C(μ3-HC2Me)(CO)15
(4) and Ru4(μ4-CHCHCO)(μ-CO)(CO)10(tmeda)
(5). The latter contains an Ru-spiked Ru3 core carrying a CHCHCO
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