om3006933_si_002.cif (38.16 kB)

C60-Induced Alkyne Cycloaddition with W(CO)(PhCCPh)3

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posted on 10.09.2012, 00:00 by Shu-Jou Wang, Wen-Yann Yeh
Reaction of C60 and W­(CO)­(PhCCPh)3 in refluxing o-dichlorobenzene affords the fullerene complexes W­(CO)­(η2-C2Ph2)­(η2-C60)­(η4-C4Ph4) (4) and W­(CPh)­(CO)­(η2-C60)­(η5-C5Ph5) (5) and the η3-benzyl complex W­(CO)253-C5Ph4(o-C6H4)­CHPh) (6). The carbocylic groups in these compounds are arising from [2 + 2] and [2 + 2 + 1] cycloaddition of the diphenylacetylene ligands, likely induced by coordination of the bulky C60 molecule. The structures of 4 and 6 have been determined by an X-ray diffraction study.