The role of water molecules in formation of heterometallic palladium acetate complexes with cerium and neodymium |
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| Authors: | S E Nefedov N Yu Kozitsyna N S Akhmadullina N V Cherkashina M N Vargaftik I I Moiseev |
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| Institution: | 1.Kurnakov Institute of General and Inorganic Chemistry,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | The reactions of palladium(II) acetate with neodymium(III) and cerium(III) acetates in acetic acid containing a specified
amount of water have been studied. The following homo- and heterometallic complexes have been synthesized and characterized
by X-ray diffraction: Nd2(μ-OOCMe)2(μ,η2-OOCMe)2(η2-OOCMe)2(HOOCMe)2(OH2)2 · 4HOOCMe, Pd(μ-OOCMe)4Ce(OH2)2(μ,η2-OOCMe)]2 · 2HOOCMe · 6H2O, Pd(μ-OOCMe)4Ce(OH2)2(μ,η2-OOCMe)]2 · 14H2O, Pd(μ-OOCMe)4M(HOOCMe)2(OH2)2]+ Pd(μ-OOCMe)4M(μ-OOCMe)4Pd]− · 2MeCOOH · 1.5H2O (M = Nd, Ce), and {Pd(μ-OOCMe)4Ce(OOCMe)4]2 Pd4(μ-OOCMe)4]2(μ4-O)8CePd4}(OH)3 · 27H2O. From kinetic and structural data and optical spectra of reaction solutions, the conclusion was drawn that hydrolytic processes
play a decisive role in complexation reactions. |
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