Reactions of zero-valent platinum complexes with some diacetylenes |
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| Authors: | JBernardus B Heyns FGordon A Stone |
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| Institution: | Department of Inorganic Chemistry, The University of Bristol, Bristol BS8 1TS Great Britain |
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| Abstract: | The complexesPt(C2H4)L2] (L = PPh3 or PMePh2) react with 1,4-diphenyl-buta-1,3-diyne to give, successively, mono- and di-platinum compounds Pt-(PhC4Ph)L2] and Pt2(PhC4Ph)L4]. Hexa-2,4-diyne and Pt(C2H4)(PPh3)2] react similarly. In the di-platinum compounds both acetylenic linkages are η2-bonded to platinum atoms, as also occurs in the complex Pt2{HC2(CH2)2C2H}(PPh3)4] obtained from hexa-1,5-diyne. Reaction of Pt3(CN-t-Bu)6 with 1,4-diphenylbuta-1,3-diyne and hexa-2,4-diyne affords di-platinum complexes, shown by spectroscopic studies to have structures containing diplatinacyclobutene rings. |
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