Exploring the photo-stability of the {Ru(py)4}2+ fragment

Mononuclear Ru(II) tetrakis-pyridine species of general formula trans-[(Cl)Ru(py)4(X)]n+ (X = Cl-, MeCN and CO) are thermally inert toward ligand exchange reactions at room temperature, but undergo substitution under photolysis conditions. The carbonyl derivative trans-[(Cl)RuII(py)4(CO)]+ was speci...

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Autores principales: Marcolongo, J.P., Weyhermüller, T., Slep, L.D.
Formato: JOUR
Materias:
Molecular devices
Photochemistry
Ruthenium Building blocks
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00201693_v429_n_p174_Marcolongo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00201693_v429_n_p174_Marcolongo2023-10-03T14:17:23Z Exploring the photo-stability of the {Ru(py)4}2+ fragment Marcolongo, J.P. Weyhermüller, T. Slep, L.D. Molecular devices Photochemistry Ruthenium Building blocks Mononuclear Ru(II) tetrakis-pyridine species of general formula trans-[(Cl)Ru(py)4(X)]n+ (X = Cl-, MeCN and CO) are thermally inert toward ligand exchange reactions at room temperature, but undergo substitution under photolysis conditions. The carbonyl derivative trans-[(Cl)RuII(py)4(CO)]+ was specifically synthesized for this report by the direct reaction between trans-[(Cl)RuII(py)4(Solv)]+ and CO in acetone and isolated as a PF6- salt. Stationary photolysis experiments in MeCN allowed recording changes in the absorption profiles along time providing quantitative values for the quantum yields of the different photo-processes, which involve the consecutive loss of CO, MeCN or pyridine ligands. There is no evidence of photo-release of a chloride anion in none of the molecules under study. For X = CO and MeCN the photo-release of X is favored over the substitution of a pyridine molecule. © 2015 Elsevier B.V. Fil:Marcolongo, J.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Slep, L.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00201693_v429_n_p174_Marcolongo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Molecular devices
Photochemistry
Ruthenium Building blocks
spellingShingle Molecular devices
Photochemistry
Ruthenium Building blocks
Marcolongo, J.P.
Weyhermüller, T.
Slep, L.D.
Exploring the photo-stability of the {Ru(py)4}2+ fragment
topic_facet Molecular devices
Photochemistry
Ruthenium Building blocks
description Mononuclear Ru(II) tetrakis-pyridine species of general formula trans-[(Cl)Ru(py)4(X)]n+ (X = Cl-, MeCN and CO) are thermally inert toward ligand exchange reactions at room temperature, but undergo substitution under photolysis conditions. The carbonyl derivative trans-[(Cl)RuII(py)4(CO)]+ was specifically synthesized for this report by the direct reaction between trans-[(Cl)RuII(py)4(Solv)]+ and CO in acetone and isolated as a PF6- salt. Stationary photolysis experiments in MeCN allowed recording changes in the absorption profiles along time providing quantitative values for the quantum yields of the different photo-processes, which involve the consecutive loss of CO, MeCN or pyridine ligands. There is no evidence of photo-release of a chloride anion in none of the molecules under study. For X = CO and MeCN the photo-release of X is favored over the substitution of a pyridine molecule. © 2015 Elsevier B.V.
format JOUR
author Marcolongo, J.P.
Weyhermüller, T.
Slep, L.D.
author_facet Marcolongo, J.P.
Weyhermüller, T.
Slep, L.D.
author_sort Marcolongo, J.P.
title Exploring the photo-stability of the {Ru(py)4}2+ fragment
title_short Exploring the photo-stability of the {Ru(py)4}2+ fragment
title_full Exploring the photo-stability of the {Ru(py)4}2+ fragment
title_fullStr Exploring the photo-stability of the {Ru(py)4}2+ fragment
title_full_unstemmed Exploring the photo-stability of the {Ru(py)4}2+ fragment
title_sort exploring the photo-stability of the {ru(py)4}2+ fragment
url http://hdl.handle.net/20.500.12110/paper_00201693_v429_n_p174_Marcolongo
work_keys_str_mv AT marcolongojp exploringthephotostabilityoftherupy42fragment
AT weyhermullert exploringthephotostabilityoftherupy42fragment
AT slepld exploringthephotostabilityoftherupy42fragment
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