Synthesis and crystal structures of new lanthanide isonicotinates: coordination polymers and molecular complexes

Autor:	E. A. Mainicheva, Olga A. Gerasko, Vladimir P. Fedin, Marina I. Naumova
Rok vydání:	2009
Předmět:	Lanthanide chemistry.chemical_classification Aqueous solution Denticity Stereochemistry General Chemistry Crystal structure Polymer Isonicotinic acid Metal chemistry.chemical_compound Crystallography chemistry visual_art visual_art.visual_art_medium
Zdroj:	Russian Chemical Bulletin. 58:1858-1865
ISSN:	1573-9171 1066-5285
DOI:	10.1007/s11172-009-0254-5
Popis:	New coordination polymers [Ce(C5H4NCOO)3(H2O)2] · 0.5C6H4N2 · 1.5H2O, [Ln(C5H4N-COO)3(H2O)2] (Ln = Ce, Pr) and [Ho(C5H4NCOO)2(H2O)4]NO3, and the tetranuclear complex [Ho4(OH)4(C5H4NCOO)6(H2O)8](NO3)2 · 3.5C6H4N2 · 5H2O were prepared by heating aqueous solutions of lanthanide(III) nitrates with 4-cyanopyridine under conditions of hydro-thermal synthesis. X-ray diffraction study demonstrated that the lanthanide atoms in the coordination polymers are bridged in chains through coordination to the carboxyl group of isonicotinic acid. The metal atoms in the tetranuclear complex are bound in pairs by six bidentate isonicotinate ligands.
Databáze:	OpenAIRE
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