Synthesis of bis(eta2-alkyne) Trinuclear Zwitterionic Platinum Hydride Complexes by Reaction of [trans-Pt(C6F5)2(C=CR)2]2- with the Solvento species [trans-PtH L2(acetone)]+
The alkynylation of trans-[Pt(C6F5)2(tht)2] (tht = tetrahydrothiophene) with LiC≡CR in diethyl ether (R = Ph, SiMe3) or THF (R = tBu) leads to novel dianionic species [trans-Pt-(C6F5)2(C≡CR)2] 2- (R = Ph (1), SiMe3 (2), tBu (3)) which have been isolated as tetrabutylammonium salts. Treatment of (NBu...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1996 |
| País: | España |
| Recursos: | Universidad de La Rioja (UR) |
| Repositorio: | RIUR. Repositorio Institucional de la Universidad de La Rioja |
| OAI Identifier: | oai:portal.dialnet.es:doc/5bbc691bb750603269e8154b |
| Acesso em linha: | https://investigacion.unirioja.es/documentos/5bbc691bb750603269e8154b |
| Access Level: | acceso abierto |
| Resumo: | The alkynylation of trans-[Pt(C6F5)2(tht)2] (tht = tetrahydrothiophene) with LiC≡CR in diethyl ether (R = Ph, SiMe3) or THF (R = tBu) leads to novel dianionic species [trans-Pt-(C6F5)2(C≡CR)2] 2- (R = Ph (1), SiMe3 (2), tBu (3)) which have been isolated as tetrabutylammonium salts. Treatment of (NBu4)2[trans-Pt(C6F5) 2(C≡CR)2] (R = Ph, SiMe3, tBu) with 2 equiv of cationic hydride reagents of the type [trans-PtHL2(acetone)]+ (L = PPh3, PEt3) in acetone form, via a ligand replacement, simple bis(η2-alkyne) trinuclear zwitterionic complexes trans,trans,trans-{[Pt(C6F5)2(μ-η 1:η2-C≡CR)2](PtHL2) 2} (R = Ph, L = PPh3 (4a), PEt3 (4b); R = SiMe3, L = PPh3 (5a), PEt3 (5b); R = tBu, L = PEt3 (6b)). The structure of complex 4b has been determined by X-ray diffraction methods. |
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