Cation Dependent Formation of Hybrid Organic–Inorganic Frameworks Based on the Strandberg-Type Polyanion [(O2CCH2PO3)2Mo5O15]6− and Cu2+ Ions

Autor:	Ulrich Kortz, Michael H. Dickman, Cornelius Klöck, Elena V. Chubarova
Rok vydání:	2007
Předmět:	Aqueous solution Inorganic chemistry Crystal growth General Chemistry Condensed Matter Physics Alkali metal Biochemistry Ion Catalysis law.invention chemistry.chemical_compound Crystallography chemistry law X-ray crystallography General Materials Science Carboxylate Crystallization
Zdroj:	Journal of Cluster Science. 18:697-710
ISSN:	1572-8862 1040-7278
DOI:	10.1007/s10876-007-0128-7
Popis:	We present the first examples of materials based on the Strandberg type polyanion [(O2CCH2PO3)2Mo5O15]6−, linked by Cu2+ centers via coordination to the carboxylate functions of the polyanion. Simple one-pot reaction of Rb4KNa[(O2CCH2PO3)2Mo5O15]·H2O with CuCl2·2H2O in aqueous acidic media followed by crystallization resulted in the three hybrid organic–inorganic materials {K2.6Rb1.4[(PO3CH2CO2)2Mo5O15Cu(H2O)3]·7H2O} n (KRb-1), {Na2Cs3[(PO3CH2CO2)2Mo5O15(Cu(H2O)2Cl)]·6H2O} n (NaCs-2) and {Na2.75Rb1.25[(PO3CH2CO2)2Mo5O15Cu(H2O)3]·9H2O} n (NaRb-3), which were characterized by single-crystal X-ray diffraction, IR, TGA and elemental analysis. All three compounds are 1:1 polymers of the polyanion and the Cu2+ centers are all five-coordinate with two carboxylate oxygens in a trans fashion. However, the chains in KRb-1, NaCs-2 and NaRb-3 are packed differently along b leading to different solid state structures, indicating an important role of the alkali counter cations.
Databáze:	OpenAIRE
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