Gold Coordination by 2-(Diphenylphosphanyl)aniline
The reaction of 2-(diphenylphosphanyl)aniline (1) with (tetrahydro/hiophene)gold(I) chloride in the molar ratio 1:1 gives a stable molecular complex 2, in which the gold atom is bonded to the phosphorus atom. Reaction of two equivalents of ligand 1 with one equivalent of the salt [(tht)2Au]ClO4 resu...
| Autores: | , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1997 |
| 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/5bbc686eb750603269e808d4 |
| Acesso em linha: | https://investigacion.unirioja.es/documentos/5bbc686eb750603269e808d4 |
| Access Level: | acceso abierto |
| Palavra-chave: | 2-(Diphenylphosphanyl)aniline Ambidentate P Gold(I) coordination Ligand effects N ligands P Ligands |
| Resumo: | The reaction of 2-(diphenylphosphanyl)aniline (1) with (tetrahydro/hiophene)gold(I) chloride in the molar ratio 1:1 gives a stable molecular complex 2, in which the gold atom is bonded to the phosphorus atom. Reaction of two equivalents of ligand 1 with one equivalent of the salt [(tht)2Au]ClO4 results in the displacement of both thioether ligands, affording the ionic complex {[(2-NH2C6H4)PPh2]2Au}+ ClO4- (3a), in which the metal center is exclusively P-coordinated. Treatment of [(tht)2Au]ClO4 with ligand 1 (1:1) affords the mixed P/S-coordinated complex 4, the structure of which has been confirmed by single-crystal X-ray diffraction. The reaction of ligand 1 with [(Ph3P)Au]+ BF4- leads to a mixture of products which are components of an equilibrium between the unsymmetrical salt ([(2-NH2C6H4)PPh2]Au(PPh 3)}+ BFJ with the two symmetrical species 3b (the BFJ analogue of 3a) and [(Ph3P)2Au]+ BFJ. With {[(Ph3P)Au]3O}+ BFj as the aurating agent, the ligand 1 (molar ratio 1:1) is converted into a polynuclear complex 7, which is tentatively assigned a structure with intimate aggregation of six gold atoms. © VCH Verlagsgesellschaft mbH,. |
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