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Syntheses and Crystal Structures of Linear and Zig‐zag 1D Coordination Polymers with Schiff‐base N,N′‐Type Ligands
Author(s) -
Wang Qing,
Liang Bing,
Zhang JianYong,
Pan Mei,
Kang BeiSheng,
Su ChengYong
Publication year - 2007
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.200700298
Subject(s) - stacking , crystallography , thermogravimetric analysis , schiff base , crystal structure , powder diffraction , diffraction , metal , zigzag , single crystal , thermal stability , chemistry , molecule , materials science , organic chemistry , physics , optics , geometry , mathematics
Assembly of the Schiff‐base ligands 1,4‐bis(3‐pyridyl)2,3‐diaza‐1,3‐butadiene ( N3Py ) and 1,4‐bis(4‐pyridyl)‐2,3‐diaza‐1,3‐butadiene ( N4Py ) with different transition metal salts afforded four zig‐zag and two linear one‐dimensional (1D) chain coordination polymers, namely {[Hg( N3Py )Cl 2 ]·CHCl 3 } n ( 1 ), [Hg( N3Py )I 2 ] n ( 2 ), [Hg( N4Py )I 2 ] n ( 3 ), {[Zn( N3Py )(NO 3 ) 2 H 2 O]·H 2 O} n ( 4 ), {[Ag 2 ( N3Py ) 2 ]·(CF 3 SO 3 ) 2 } n ( 5 ) and {[Zn( N4Py )]·(C 7 H 7 SO 3 ) 2 · (C 2 H 5 OH) 2 ] n ( 6 ). These polymeric structures have been characterized by the single‐crystal X‐ray diffraction, FT‐IR and X‐ray powder diffraction measurements. The crystal packing fashions of these 1D chains have been analyzed, which indicates that the difference of the ligands and counter anions could significantly affect the stacking modes of these 1D chains in the crystal lattice, thus resulting in different hosting behaviors of the solvated molecules and anions. The thermal stability of complexes 1 and 6 was investigated by thermogravimetric measurements. The solid‐state phase purity has been checked by X‐ray powder diffraction measurements.