Synthesis, structures and photophysics of novel luminescent platinum-copper complexes
The novel hexanuclear platinum-copper complex [Pt2Cu4(C6F5)4 (C≡CtBu)4] (acetone)2] (1) and the polynuclear derivative [PtCu2(C6F5)2 (C≡CPh)2]x (2), which crystallises in acetone as [Pt2Cu4 (C6F5)4 (C≡CPh)4(acetone)4] (2).(acetone)4, have been prepared using [cis-Pt(C6F5)2(THF)2] and the correspondi...
| Autores: | ; ; ; ; ; |
|---|---|
| Tipo de documento: | Artículo |
| Estado: | Published version |
| Fecha de publicación: | 2003 |
| País: | España |
| Institución: | Universidad de La Rioja (UR) |
| Repositorio: | RIUR. Repositorio Institucional de la Universidad de La Rioja |
| OAI Identifier: | oai:portal.dialnet.es:doc/5bbc692bb750603269e8166c |
| Acceso en línea: | https://investigacion.unirioja.es/documentos/5bbc692bb750603269e8166c |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Alkynyl Cluster Copper Luminescence Platinum |
| _version_ | 1878736908829327360 |
|---|---|
| author | Ara, I. [0000-0002-5881-9698] |
| author2 | Berenguer, J.R. [0000-0002-6539-7171] Eguizábal, E. Forniés, J. Gómez, J. [0000-0002-6749-4354] Lalinde, E. [0000-0001-7402-1742] |
| author2_role | author author author author author |
| author_browse | Ara, I. [0000-0002-5881-9698] Berenguer, J.R. [0000-0002-6539-7171] Eguizábal, E. Forniés, J. Gómez, J. [0000-0002-6749-4354] Lalinde, E. [0000-0001-7402-1742] |
| author_facet | Ara, I. [0000-0002-5881-9698] Berenguer, J.R. [0000-0002-6539-7171] Eguizábal, E. Forniés, J. Gómez, J. [0000-0002-6749-4354] Lalinde, E. [0000-0001-7402-1742] |
| author_role | author |
| collection | RIUR. Repositorio Institucional de la Universidad de La Rioja |
| description | The novel hexanuclear platinum-copper complex [Pt2Cu4(C6F5)4 (C≡CtBu)4] (acetone)2] (1) and the polynuclear derivative [PtCu2(C6F5)2 (C≡CPh)2]x (2), which crystallises in acetone as [Pt2Cu4 (C6F5)4 (C≡CPh)4(acetone)4] (2).(acetone)4, have been prepared using [cis-Pt(C6F5)2(THF)2] and the corresponding copper-acetylide [Cu(C≡CR)]x (molar ratio 1:2) as starting materials. Treatment of 1 and 2 with 2,2′-bipyridine (molar ratio Cu-bipy 1:1), afforded the new trinuclear derivatives [{cis-Pt(C6F5)2 (μ-C≡CR)2}{Cu(bipy)}2] (R = tBu 3, Ph 4), in which the dianionic 3-platina-1,4-diyne acts as a didentate bridging ligand to two different cationic Cu(bipy) units through η2-side-on coordination of the alkynyl fragments. While similar treatment of 1 with dppe (Cu-dppe 1:1) yielded [{cis-Pt(C6F5)2 (μ-C≡CtBu)2} {Cu(dppe)}2] (5), the analogous reaction of 2 with dppe afforded a mixture of complexes containing [Pt(C6F5)(C≡CPh)(dppe)] as the main platinum compound. The crystal structures of 1, 2·(acetone)4, 3 and 4 and the luminescent behaviour of all complexes have been determined. A comparison of the photoluminescent spectra of 1 and 2 with those of the related platinum-silver species [PtAg2(C6F5)2 (C≡CR)2]x and the monomeric [cis-Pt(C6F5)2 (C≡CR)2]2- suggests the presence of emitting states bearing a large cluster [PtM2]x -to-ligand (alkynide) charge transfer (CLCT). © 2003 Elsevier Science B.V. All rights reserved. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_9767dfd6a4d281939bed41f33f4bcb0f |
| institution | Universidad de La Rioja (UR) |
| instname_str | Universidad de La Rioja (UR) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:portal.dialnet.es:doc/5bbc692bb750603269e8166c |
| publishDate | 2003 |
| publishDateSort | 2003 |
| reponame_str | RIUR. Repositorio Institucional de la Universidad de La Rioja |
| spelling | Synthesis, structures and photophysics of novel luminescent platinum-copper complexes Ara, I. [0000-0002-5881-9698] Berenguer, J.R. [0000-0002-6539-7171] Eguizábal, E. Forniés, J. Gómez, J. [0000-0002-6749-4354] Lalinde, E. [0000-0001-7402-1742] Alkynyl Cluster Copper Luminescence Platinum The novel hexanuclear platinum-copper complex [Pt2Cu4(C6F5)4 (C≡CtBu)4] (acetone)2] (1) and the polynuclear derivative [PtCu2(C6F5)2 (C≡CPh)2]x (2), which crystallises in acetone as [Pt2Cu4 (C6F5)4 (C≡CPh)4(acetone)4] (2).(acetone)4, have been prepared using [cis-Pt(C6F5)2(THF)2] and the corresponding copper-acetylide [Cu(C≡CR)]x (molar ratio 1:2) as starting materials. Treatment of 1 and 2 with 2,2′-bipyridine (molar ratio Cu-bipy 1:1), afforded the new trinuclear derivatives [{cis-Pt(C6F5)2 (μ-C≡CR)2}{Cu(bipy)}2] (R = tBu 3, Ph 4), in which the dianionic 3-platina-1,4-diyne acts as a didentate bridging ligand to two different cationic Cu(bipy) units through η2-side-on coordination of the alkynyl fragments. While similar treatment of 1 with dppe (Cu-dppe 1:1) yielded [{cis-Pt(C6F5)2 (μ-C≡CtBu)2} {Cu(dppe)}2] (5), the analogous reaction of 2 with dppe afforded a mixture of complexes containing [Pt(C6F5)(C≡CPh)(dppe)] as the main platinum compound. The crystal structures of 1, 2·(acetone)4, 3 and 4 and the luminescent behaviour of all complexes have been determined. A comparison of the photoluminescent spectra of 1 and 2 with those of the related platinum-silver species [PtAg2(C6F5)2 (C≡CR)2]x and the monomeric [cis-Pt(C6F5)2 (C≡CR)2]2- suggests the presence of emitting states bearing a large cluster [PtM2]x -to-ligand (alkynide) charge transfer (CLCT). © 2003 Elsevier Science B.V. All rights reserved. https://investigacion.unirioja.es/documentos/5bbc692bb750603269e8166c |
| spellingShingle | Synthesis, structures and photophysics of novel luminescent platinum-copper complexes Ara, I. [0000-0002-5881-9698] Alkynyl Cluster Copper Luminescence Platinum |
| status_str | publishedVersion |
| title | Synthesis, structures and photophysics of novel luminescent platinum-copper complexes |
| title_full | Synthesis, structures and photophysics of novel luminescent platinum-copper complexes |
| title_fullStr | Synthesis, structures and photophysics of novel luminescent platinum-copper complexes |
| title_full_unstemmed | Synthesis, structures and photophysics of novel luminescent platinum-copper complexes |
| title_short | Synthesis, structures and photophysics of novel luminescent platinum-copper complexes |
| title_sort | Synthesis, structures and photophysics of novel luminescent platinum-copper complexes |
| topic | Alkynyl Cluster Copper Luminescence Platinum |
| topic_facet | Alkynyl Cluster Copper Luminescence Platinum |
| url | https://investigacion.unirioja.es/documentos/5bbc692bb750603269e8166c |