Academic Journal
Syntheses and characterization of binuclear Rh-2, Ir-2 and RhIr complexes containing dimethyl phosphonate and pyrazolate bridging ligands
| العنوان: | Syntheses and characterization of binuclear Rh-2, Ir-2 and RhIr complexes containing dimethyl phosphonate and pyrazolate bridging ligands |
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| المؤلفون: | Valderrama, M, Cuevas, J, Boys, D, Carmona, D, Lamata, MP, Viguri, F, Atencio, R, Lahoz, FJ, Oro, LA |
| بيانات النشر: | ROYAL SOC CHEMISTRY |
| سنة النشر: | 2024 |
| المجموعة: | Pontificia Universidad Católica de Chile: Repositorio UC |
| مصطلحات موضوعية: | X-RAY STRUCTURE, PZ = PYRAZOLATE, CRYSTAL-STRUCTURE, (PENTAMETHYLCYCLOPENTADIENYL)IRIDIUM COMPLEXES, PENTAMETHYLCYCLOPENTADIENYL-RHODIUM, HOMOGENEOUS CATALYSTS, IRIDIUM COMPLEXES, DERIVATIVES, REACTIVITY, SYNERGISM, 12 Responsible Consumption and Production, 12 Producción y consumo responsable |
| الوصف: | The reaction of [Ir(eta(5)-C(5)Me(5))I{PO(OMe)(2)}{P(OH)OMe)(2)}] with pyrazole (Hpz) in the presence of AgPF6 gave [Ir(eta(5)-C(5)Me(5)){PO(OMe)(2)}{P(OH)(OMe)(2)}(Hpz)]PF6 1. Deprotonation of 1 with sodium carbonate afforded the neutral compound [Ir(eta(5)-C(5)Me(5)){PO(OMe)(2)}(2)(Hpz)] 2 which, in turn, can be deprotonated to [(eta(5)-C(5)Me(5))Ir{PO(OMe)(2)}(2)(pz)M'] (M' = Tl 3 or Na 4) by Tl(acac) (acac = acetylacetonate) or NaH, respectively. The complex [Ir(eta(5)-C(5)Me(5))I-2{P(OH)(OMe)(2)}] 5, prepared by cleaving the iodide bridges in [{Ir(eta(5)-C(5)Me(5))I}(2)(mu-I)(2)] with HPO(OMe)(2), reacted with Hpz in the presence of AgPF6 to give [Ir(eta(5)-C(5)Me(5)){PO(OMe)(2)}(Hpz)(2)]PF6 6. Complexes of formulae [(eta(5)-C(5)Me(5))Ir{PO(OMe)(2)(pz)M '' L(2)][M '' L(2) = Rh(CO)(2) 7, Rh(cod) 8 or Ir(cod) 9] were prepared from 2 [Rh(acac)(CO)(2)] or from 3 and the appropriate [{M ''(cod)}(2)(mu-Cl)(2) dimer (cod = cycloocta-1,5-diene). Complex 6 reacted with [{Rh(cod)}(2)(mu-Cl)(2)] in basic medium to give [(eta(5)-C(5)Me(5))Ir{PO(OMe)(2)}(pz)(2)Rh(cod)] 10. The rhodium-thallium compound [(eta(5)-C(5)Me(5))Rh{PO(OMe)(2)}(2)(pz)Tl] or the in situ prepared sodium derivative [(eta(5)-C(5)Me(5))Rh{PO(OMe)(2)}(pz)(2)Na] reacted with the dimers [{M ''(diolefin)}(2)(mu-Cl)(2)] affording [(eta(5)-C(5)Me(5))Rh{PO(OMe)(2)}(2)(pz)M ''(diolefin) = [M ''(diolefin) = Ir(cod) 11 or Rh(nbd) 12] or [(eta(5)-C(5)Me(5)){PO(OMe)(2)}Rh(pz)(2)}Rh(pz)(2)M ''(diolefin)][M ''(diolefin) = Rh(cod) 13, Ir(cod) 14 or Rh(nbd) 15], respectively (nbd = bicyclo[2.2.1]hepta-2,5-diene). Related heterovalent complexes of general formula [I(eta(5)-C(5)Me(5))M{PO(OMe(2)}(2)M ''(diolefin)][M = Ir, M'(diolefin) = Rh(cod) 16 or Ir(cod) 17; M = Rh, M ''(diolefin) = Rh(cod) 18, Ir(cod) 19, or Rh(nbd) 20] have been prepared starting from the mononuclear complexes [M(eta(5)-C(5)Me(5))I{PO(OMe)(2)}{P(OH)(OMe)(2)}] (M = Ir or Rh). All the complexes have been characterized by spectroscopic of 8 by toluene-p-sulfonic acid is reported. The structures of ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | 9 páginas; application/pdf |
| اللغة: | English |
| تدمد: | 0300-9246 |
| Relation: | https://doi.org/10.1039/dt9960002877; https://repositorio.uc.cl/handle/11534/78727; WOS:A1996UW62500041 |
| DOI: | 10.1039/dt9960002877 |
| الاتاحة: | https://repositorio.uc.cl/handle/11534/78727 https://doi.org/10.1039/dt9960002877 |
| Rights: | acceso restringido |
| رقم الانضمام: | edsbas.1163166D |
| قاعدة البيانات: | BASE |
| تدمد: | 03009246 |
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| DOI: | 10.1039/dt9960002877 |