Synthesis, Characterization, and Photochemical Properties of a New Square Mn(I)-Ru(II) Complex Using Pyrazine as Bridge Ligand
The photochemical properties of the complexes cis,fac- (I), cis-[Ru(phen)2(pz)2]2+ (II), and fac-Mn(CO)3(pz)2Br (III) where phen is phenanthroline and pz is pyrazine in acetonitrile solution are reported. The three complexes were characterized using 1H NMR, UV-vis and FTIR spectroscopy and electroch...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
|
| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2013/702310 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850166405777850368 |
|---|---|
| author | Inara de Aguiar Simone D. Inglez Antonio Claudio Tedesco Rose Maria Carlos |
| author_facet | Inara de Aguiar Simone D. Inglez Antonio Claudio Tedesco Rose Maria Carlos |
| author_sort | Inara de Aguiar |
| collection | DOAJ |
| description | The photochemical properties of the complexes cis,fac- (I), cis-[Ru(phen)2(pz)2]2+ (II), and fac-Mn(CO)3(pz)2Br (III) where phen is phenanthroline and pz is pyrazine in acetonitrile solution are reported. The three complexes were characterized using 1H NMR, UV-vis and FTIR spectroscopy and electrochemical (cyclic voltammetry and spectroelectrochemical) techniques. The complexes show intense absorption in the visible region assigned to the population of MLCT excited states. The absorption spectrum of I is the sum of the spectra of the mononuclear species II and III, and the two oxidation potentials at +1.10 and +1.56 V versus Ag/AGCl observed in I are ascribed to the different coordination environments of metal centers. The photolysis in the acetonitrile solution resulted in the pz dissociation to give the monoacetonitrile complexes for I, II, and III, respectively. |
| format | Article |
| id | doaj-art-e042bb267ed44135a0f3eeff29d2a8c2 |
| institution | OA Journals |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-e042bb267ed44135a0f3eeff29d2a8c22025-08-20T02:21:28ZengWileyJournal of Spectroscopy2314-49202314-49392013-01-01201310.1155/2013/702310702310Synthesis, Characterization, and Photochemical Properties of a New Square Mn(I)-Ru(II) Complex Using Pyrazine as Bridge LigandInara de Aguiar0Simone D. Inglez1Antonio Claudio Tedesco2Rose Maria Carlos3Departamento de Química, Universidade Federal de São Carlos, CP 676, 13565-905 São Carlos, SP, BrazilFaculdade de Ciências Exatas e Tecnologia, Universidade Federal da Grande Dourados, CP 533, 79804-970 Dourados, MS, BrazilDepartamento de Ciências Farmacêuticas, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901 Ribeirão Preto, SP, BrazilDepartamento de Química, Universidade Federal de São Carlos, CP 676, 13565-905 São Carlos, SP, BrazilThe photochemical properties of the complexes cis,fac- (I), cis-[Ru(phen)2(pz)2]2+ (II), and fac-Mn(CO)3(pz)2Br (III) where phen is phenanthroline and pz is pyrazine in acetonitrile solution are reported. The three complexes were characterized using 1H NMR, UV-vis and FTIR spectroscopy and electrochemical (cyclic voltammetry and spectroelectrochemical) techniques. The complexes show intense absorption in the visible region assigned to the population of MLCT excited states. The absorption spectrum of I is the sum of the spectra of the mononuclear species II and III, and the two oxidation potentials at +1.10 and +1.56 V versus Ag/AGCl observed in I are ascribed to the different coordination environments of metal centers. The photolysis in the acetonitrile solution resulted in the pz dissociation to give the monoacetonitrile complexes for I, II, and III, respectively.http://dx.doi.org/10.1155/2013/702310 |
| spellingShingle | Inara de Aguiar Simone D. Inglez Antonio Claudio Tedesco Rose Maria Carlos Synthesis, Characterization, and Photochemical Properties of a New Square Mn(I)-Ru(II) Complex Using Pyrazine as Bridge Ligand Journal of Spectroscopy |
| title | Synthesis, Characterization, and Photochemical Properties of a New Square Mn(I)-Ru(II) Complex Using Pyrazine as Bridge Ligand |
| title_full | Synthesis, Characterization, and Photochemical Properties of a New Square Mn(I)-Ru(II) Complex Using Pyrazine as Bridge Ligand |
| title_fullStr | Synthesis, Characterization, and Photochemical Properties of a New Square Mn(I)-Ru(II) Complex Using Pyrazine as Bridge Ligand |
| title_full_unstemmed | Synthesis, Characterization, and Photochemical Properties of a New Square Mn(I)-Ru(II) Complex Using Pyrazine as Bridge Ligand |
| title_short | Synthesis, Characterization, and Photochemical Properties of a New Square Mn(I)-Ru(II) Complex Using Pyrazine as Bridge Ligand |
| title_sort | synthesis characterization and photochemical properties of a new square mn i ru ii complex using pyrazine as bridge ligand |
| url | http://dx.doi.org/10.1155/2013/702310 |
| work_keys_str_mv | AT inaradeaguiar synthesischaracterizationandphotochemicalpropertiesofanewsquaremniruiicomplexusingpyrazineasbridgeligand AT simonedinglez synthesischaracterizationandphotochemicalpropertiesofanewsquaremniruiicomplexusingpyrazineasbridgeligand AT antonioclaudiotedesco synthesischaracterizationandphotochemicalpropertiesofanewsquaremniruiicomplexusingpyrazineasbridgeligand AT rosemariacarlos synthesischaracterizationandphotochemicalpropertiesofanewsquaremniruiicomplexusingpyrazineasbridgeligand |