Qin Na, Zhao Chao-Wei, Ma Jian-Ping, Liu Qi-Kui, Dong Yu-Bin
College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Engineering Research Center of Pesticide and Medicine Intermediate Clean Production, Ministry of Education, Shandong Normal University, Jinan 250014, People's Republic of China.
Acta Crystallogr C. 2012 Jun;68(Pt 6):m147-51. doi: 10.1107/S0108270112017659. Epub 2012 May 6.
The new 4-amino-1,2,4-triazole asymmetric bridging ligand 4-amino-5-(pyridin-3-yl)-3-[4-(pyridin-4-yl)phenyl]-4H-1,2,4-triazole (L) has been used to generate three novel isomorphic one-dimensional coordination polymers, viz. catena-poly[[tris[dichloridomercury(II)]-bis{μ(3)-4-amino-5-(pyridin-3-yl)-3-[4-(pyridin-4-yl)phenyl]-4H-1,2,4-triazole}] acetonitrile monosolvate], {[Hg(3)Cl(6)(C(18)H(14)N(6))(2)]·CH(3)CN}(n), (I), and the bromido, {[Hg(3)Br(6)(C(18)H(14)N(6))(2)]·CH(3)CN}(n), (II), and iodido, {[Hg(3)I(6)(C(18)H(14)N(6))(2)]·CH(3)CN}(n), (III), analogs. The asymmetric ligand acts as a tridentate ligand to coordinate the three different Hg(II) centers (two of which are symmetry-related). Two ligands and two symmetry-related Hg(II) centers form centrosymmetric rectangular units which are linked into one-dimensional chains via the other unique Hg atoms, which sit on mirror planes. The chains are elaborated into a three-dimensional structure via interchain hydrogen bonds. The acetonitrile solvent molecules are located in ellipsoidal cavities. The luminescent character of these three coordination complexes was investigated in the solid state.
新型4-氨基-1,2,4-三唑不对称桥联配体4-氨基-5-(吡啶-3-基)-3-[4-(吡啶-4-基)苯基]-4H-1,2,4-三唑(L)已用于制备三种新型同构一维配位聚合物，即链状聚[[三[二氯汞(II)]-双{μ(3)-4-氨基-5-(吡啶-3-基)-3-[4-(吡啶-4-基)苯基]-4H-1,2,4-三唑}]乙腈单溶剂合物]，{[Hg(3)Cl(6)(C(18)H(14)N(6))(2)]·CH(3)CN}(n)，(I)，以及溴化物{[Hg(3)Br(6)(C(18)H(14)N(6))(2)]·CH(3)CN}(n)，(II)，和碘化物{[Hg(3)I(6)(C(18)H(14)N(6))(2)]·CH(3)CN}(n)，(III)类似物。不对称配体作为三齿配体与三个不同的Hg(II)中心配位(其中两个是对称相关的)。两个配体和两个对称相关的Hg(II)中心形成中心对称的矩形单元，这些单元通过位于镜面的其他独特Hg原子连接成一维链。通过链间氢键将链扩展成三维结构。乙腈溶剂分子位于椭球形空腔中。对这三种配位络合物的固态发光特性进行了研究。
