HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMS

Reported here are the in situ FT-IR and 13C-NMR spectroscopic studies of the complex cis-[Ir(CO)2(py)2](PF6 ) (py = pyridine) dissolved in 80% aqueous pyridine used as a precursor in the homogeneous catalysis of the water gas shift reaction (WGSR, CO + H2O Æ CO2 + H2). These spectroscopy studies rev...

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Autores principales:	Pardey,A.J., Moreno,M.A., Ortega,M.C., Mendez,B., Rivas,A.B., Moya,S.A., Villagra,D., Lutz,M.
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2003
Materias:	Pyridine WGSR iridium catalyst
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200003
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spelling	oai:scielo:S0717-970720030002000032004-01-29HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMSPardey,A.J.Moreno,M.A.Ortega,M.C.Mendez,B.Rivas,A.B.Moya,S.A.Villagra,D.Lutz,M. Pyridine WGSR iridium catalyst Reported here are the in situ FT-IR and 13C-NMR spectroscopic studies of the complex cis-[Ir(CO)2(py)2](PF6 ) (py = pyridine) dissolved in 80% aqueous pyridine used as a precursor in the homogeneous catalysis of the water gas shift reaction (WGSR, CO + H2O Æ CO2 + H2). These spectroscopy studies reveal the presence of aminocarbonyliridium complexes with linear and bridging carbonyls groups as reaction intermediates. The WGSR catalysis by Ir4(CO)12 complex dissolved in 80% of aqueous 4-picoline or pyridine under 1.9 atm of CO at 100 C and the FT-IR and ¹H-NMR in situ studies of the pyridine promoted disproportionation of Ir4(CO)12, are also describedinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.48 n.2 20032003-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200003en10.4067/S0717-97072003000200003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Pyridine WGSR iridium catalyst
spellingShingle	Pyridine WGSR iridium catalyst Pardey,A.J. Moreno,M.A. Ortega,M.C. Mendez,B. Rivas,A.B. Moya,S.A. Villagra,D. Lutz,M. HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMS
description	Reported here are the in situ FT-IR and 13C-NMR spectroscopic studies of the complex cis-[Ir(CO)2(py)2](PF6 ) (py = pyridine) dissolved in 80% aqueous pyridine used as a precursor in the homogeneous catalysis of the water gas shift reaction (WGSR, CO + H2O Æ CO2 + H2). These spectroscopy studies reveal the presence of aminocarbonyliridium complexes with linear and bridging carbonyls groups as reaction intermediates. The WGSR catalysis by Ir4(CO)12 complex dissolved in 80% of aqueous 4-picoline or pyridine under 1.9 atm of CO at 100 C and the FT-IR and ¹H-NMR in situ studies of the pyridine promoted disproportionation of Ir4(CO)12, are also described
author	Pardey,A.J. Moreno,M.A. Ortega,M.C. Mendez,B. Rivas,A.B. Moya,S.A. Villagra,D. Lutz,M.
author_facet	Pardey,A.J. Moreno,M.A. Ortega,M.C. Mendez,B. Rivas,A.B. Moya,S.A. Villagra,D. Lutz,M.
author_sort	Pardey,A.J.
title	HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMS
title_short	HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMS
title_full	HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMS
title_fullStr	HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMS
title_full_unstemmed	HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMS
title_sort	homogeneous catalysis of the water gas shift reaction: ir, ¹h- and 13c-nmr in situ studies on catalytic iridium systems
publisher	Sociedad Chilena de Química
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200003
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HOMOGENEOUS CATALYSIS OF THE WATER GAS SHIFT REACTION: IR, ¹H- AND 13C-NMR IN SITU STUDIES ON CATALYTIC IRIDIUM SYSTEMS

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