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Synthesis, Structure, and Thermal Properties of Two New Inorganic‐organic Framework Compounds: Hexaaqua( μ 2 ‐1,2,4,5‐benzenetetracarboxylato)‐bis( N , N′ ‐1,10‐phenathroline)dicobalt(II) Dihydrate and Hexaaqua( μ 2 ‐1,2,4,5‐benzenetetracarboxylato)‐bis( N , N′ ‐2,2′‐dipyridylamine)dinickel(II) Tetrahydrate
Author(s) -
Rogan Jelena,
Poleti Dejan,
Karanović Ljiljana
Publication year - 2006
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200500292
Subject(s) - stacking , octahedron , chemistry , crystallography , hydrogen bond , infrared spectroscopy , thermal decomposition , thermal stability , metal , decomposition , stereochemistry , molecule , crystal structure , organic chemistry
Two binuclear complexes [Co 2 (C 10 H 2 O 8 )(C 12 H 8 N 2 ) 2 (H 2 O) 6 ]·2H 2 O ( 1 ) and [Ni 2 (C 10 H 2 O 8 )(C 10 H 9 N 3 ) 2 (H 2 O) 6 ]·4H 2 O ( 2 ) were synthesized and their structures were determined by X‐ray structure analysis. In both structures metal centres are in deformed octahedral environments and they are linked by bis‐monodentately coordinated 1,2,4,5‐benzenetetracarboxylate ligands as bridging units. In the packing arrangements of both compounds, binuclear units are connected by hydrogen bonds forming 2D pseudo‐layers, strengthened by face‐to‐face π ‐ π stacking interactions. The pseudo‐layers further construct 3D inorganic‐organic frameworks via system of hydrogen bonds. The complexes were also characterized by IR spectroscopy, TG and DSC analysis. Dehydration processes and thermal stability of the complexes are discussed. The dehydration enthalpies are calculated and the possible decomposition mechanisms are assumed.