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PH- and mol-ratio dependent formation of zinc(II) coordination polymers with iminodiacetic acid: synthesis, spectroscpic, crystal structure and thermal studies.


ABSTRACT: Three novel zinc coordination polymers (NH(4))(n)[Zn(Hida)Cl(2)](n) (1), [Zn(ida)(H(2)O)(2)](n) (2), [Zn(Hida)(2)](n)·4nH(2)O (3) (H(2)ida = iminodiacetic acid) and a monomeric complex [Zn(ida)(phen)(H(2)O)]·2H(2)O (4) (phen=1,10-phenanthroline) have been synthesized and characterized by X-ray diffraction methods. 1 and 2 form one-dimensional (1-D) chain structures, whereas 3 exhibits a three-dimensional (3-D) diamondoid framework with an open channel. The mononuclear complex 4 is extended into a 3-D supramolecular architecture through hydrogen bonds and ?-? stacking. Interestingly, cyclic nonplanar tetrameric water clusters are observed that encapsulated in the 3-D lattice of 4. Based on (1)H and (13)C NMR observations, there is obvious coordination of complex 2 in solution, while 1 and 3 decompose into free iminodiacetate ligand. Monomer [Zn(ida)(H(2)O)(3)] (5) is considered as a possible discrete species from 2. These coordination polymers can serve as good molecular precursors for zinc oxide.

SUBMITTER: Ni LB 

PROVIDER: S-EPMC2778864 | biostudies-literature | 2009 Oct

REPOSITORIES: biostudies-literature

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pH- and mol-ratio dependent formation of zinc(II) coordination polymers with iminodiacetic acid: synthesis, spectroscpic, crystal structure and thermal studies.

Ni Lu-Bin LB   Zhang Rong-Hua RH   Liu Qiong-Xin QX   Xia Wen-Sheng WS   Wang Hongxin H   Zhou Zhao-Hui ZH  

Journal of solid state chemistry 20091001 10


Three novel zinc coordination polymers (NH(4))(n)[Zn(Hida)Cl(2)](n) (1), [Zn(ida)(H(2)O)(2)](n) (2), [Zn(Hida)(2)](n)·4nH(2)O (3) (H(2)ida = iminodiacetic acid) and a monomeric complex [Zn(ida)(phen)(H(2)O)]·2H(2)O (4) (phen=1,10-phenanthroline) have been synthesized and characterized by X-ray diffraction methods. 1 and 2 form one-dimensional (1-D) chain structures, whereas 3 exhibits a three-dimensional (3-D) diamondoid framework with an open channel. The mononuclear complex 4 is extended into  ...[more]

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