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Global Journal of Inorganic Chemistry. Volume 2, Issue 3 (2011) pp. 177-187
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Research Article
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Series of metal thiocyanates self-assembly induced by 5, 8-Diazoniadispiro [4.2.4.2] tetradecane dication
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Fu-Kai Zhao, Xiao-Ling Guo, Zhen-Hua Zhang, Jun-Ming Yue, Yun-Yin Niu
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Department of Chemistry, Zhengzhou University, Zhengzhou 450001, PR China
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Abstract |
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Self-assembly
of pseudohalogenometalates
with DDTD
dication (DDTD = 5, 8 -Diazoniadispiro[4.2.4.2] tetradecane) were studied. Seven supramolecular complexes
were obtained and characterized by
X-ray crystallography, elemental analyses and IR spectroscopy: (DDTD)2[Mn(SCN)6]
(1), (DDTD)2[Cd(SCN)6] (2),
(DDTD)2[Ni(SCN)6]·H2O (3), (DDTD)[Zn(SCN)4] (4), (DDTD)[Hg(SCN)Br3] (5), (DDTD)2[Ag2(SCN)4Br2]
(6) and {(DDTD)[Cu2(SCN)4]}n
(7). These compounds contained a variety of inorganic framework from mononuclear
inorganic adduct to 2D sheet polymer, due to the different coordinated modes of
metal centers with pseudohalogen, which accordingly
led to the change of the C-H···N(S, Br, I) interactions in the complexes. Additionally, the C(O)-H···N(S, Br, I, O) intermolecular
interactions in the complexes extended the discrete
(0D) or low-dimensional (1D) entities into high-dimensional frameworks to
stabilize supramolecular architectures. Thermal analyses (TG, DTG and DSA) revealed that the
decomposition of the complexes mainly proceeded in two stages with the
consecutive endothermic course.
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Keywords |
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Metal thiocyanate; Tetradecane;Supramolecular; Thermal analyses
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