Ni Lu-Bin, Zhang Rong-Hua, Liu Qiong-Xin, Xia Wen-Sheng, Wang Hongxin, Zhou Zhao-Hui
State Key Laboratory of Physical Chemistry of Solid Surface, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
J Solid State Chem. 2009 Oct 1;182(10):2698-2706. doi: 10.1016/j.jssc.2009.06.042.
Three novel zinc coordination polymers (NH(4))(n)Zn(Hida)Cl(2) (1), Zn(ida)(H(2)O)(2) (2), Zn(Hida)(2)·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 π-π 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.
三种新型锌配位聚合物(NH(4))(n)Zn(Hida)Cl(2) (1)、Zn(ida)(H(2)O)(2) (2)、Zn(Hida)(2)·4nH(2)O (3) (H(2)ida = 亚氨基二乙酸)以及一种单核配合物[Zn(ida)(phen)(H(2)O)]·2H(2)O (4) (phen = 1,10-菲咯啉)已通过X射线衍射方法合成并表征。1和2形成一维(1-D)链状结构，而3呈现出具有开放通道的三维(3-D)类金刚石骨架。单核配合物4通过氢键和π-π堆积扩展为三维超分子结构。有趣的是，观察到环状非平面四聚体水簇包裹在4的三维晶格中。基于(1)H和(13)C NMR观察结果，配合物2在溶液中有明显的配位作用，而1和3分解为游离的亚氨基二乙酸配体。单体[Zn(ida)(H(2)O)(3)] (5)被认为是2中可能的离散物种。这些配位聚合物可作为氧化锌的良好分子前驱体。
