Synthesis, characterization and adsorption properties of porous mixed valent diruthenium(II,III)-terephthalate and diruthenium(II,III)-adipate polymers
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
20/10/2012
20/10/2012
2008
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Resumo |
Two porous mixed valent diruthenium(II,III)-dicarboxylate compounds have been prepared and characterized by spectroscopic methods, X-ray diffraction and thermogravimetry. Crystalline solids of [Ru(2)(tere)(2)Cl] center dot 3.5H(2)O (tere=terephthalate) and [Ru(2)(adip)(2)Cl] center dot 1.5H(2)O (adip=adipate) consist of extended chains in which polymeric layers of multiply metal-metal bonded [Ru(2)](5+) cores are bridged by dicarboxylate ligands in paddlewheel type geometries. Units of [Ru(2)(dicarboxylate)(2)](n)(+) are linked by axial bridging chloride ions generating three-dimensional networks. The polymers loose non-bonded water molecules at low temperatures but do not undergo thermal decomposition below 280-300 degrees C. Both of compounds exhibit high BET surface areas, [Ru(2)(tere)(2)Cl]: 235 m(2) g(-1) and [Ru(2)(adip)(2)Cl]: 281 m(2) g(-1), and occlude similar numbers of mol of N(2) per mol of metal. The terephthalate ligand generated an organized structure with supermicropores (total pore size of 0.24 cm(3) g(-1)) while the adipate ligand led to a mesoporous structure (total pore sizes of 0.47 cm(3) g(-1)) for the corresponding diruthenium(II,III)-dicarboxylate polymers. (c) 2008 Elsevier B.V. All rights reserved. Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) Instituto do Milenio de Materiais Complexos (IM<SUP>2</SUP>C) Instituto do Milenio de Materiais Complexos (IM<SUP>2</SUP>C) |
Identificador |
JOURNAL OF MOLECULAR STRUCTURE, v.890, n.1/Mar, Special Issue, p.209-214, 2008 0022-2860 http://producao.usp.br/handle/BDPI/31256 10.1016/j.molstruc.2008.04.019 |
Idioma(s) |
eng |
Publicador |
ELSEVIER SCIENCE BV |
Relação |
Journal of Molecular Structure |
Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE BV |
Palavras-Chave | #Mixed valent diruthenium(II,III) #Metal carboxylates #Terephthalic acid #Adipic acid #Porous inorganic-organic polymers #BET surface area #GAS-OCCLUSION PROPERTIES #TRANS-TRANS-MUCONATE #MICROPOROUS MATERIALS #METAL CARBOXYLATES #DICARBOXYLATES FUMARATE #DIRUTHENIUM TETRACARBOXYLATES #RU2(CARBOXYLATE)4+ COMPLEXES #COPPER(II) TEREPHTHALATE #CATALYTIC-ACTIVITIES #OXIDATION CATALYSIS #Chemistry, Physical |
Tipo |
article original article publishedVersion |