A novel compound [Cl2Bz（3-MeQl） ]（TCNQ） （[Cl2Bz（3-MeQl） ]^＋ = 1-（3,4-dichlo-robenzyl） 3-methlquinoline cation,TCNQ-= 7,7,8,8-tetracyanoquinodimethanide anion） has been synthesized by the reaction of [Cl2Bz（3-MeQl） ]Br and LiTCNQ,and its structure was determined by single-crystal X-ray diffraction. The crystal belongs to monoclinic,space group P21/c. The structure analysis shows that the anions are stacked into a column with isolated π-dimers,and there is one type of TCNQ entries（TCNQ^-） ,in agreement with the IR spectra analysis and density functional theory calculations of the compound. The most prominent structural features are the completely segregated stacking columns of the TCNQ- anions and [Cl2Bz（3-MeQl）]＋ cations.
Two new alkaline earth metal coordination polymers constructed from the deriva-tive of 1,2,4-triazole are presented herein,namely,{[Sr（AmTAZAc）2（H2O）]}（1） and {[Ba（AmTAZAc）2（H2O）]}（2）（AmTAZAc = 3-amino-1H-1,2,4-triazole-5-carboxylate）,which have been synthesized by using the layering method and structurally characterized by elemental analysis,IR,and single-crystal X-ray diffraction.Complexes 1 and 2 are isostructural,and both crystallize in the orthorhombic system,space group Fdd2.X-ray structural analysis shows that 1 or 2 has an intriguing 3-D infinite network of（318.438.510） topology based on a 2-D sheet structure of（4,4） net.The result shows that noncovalent interactions play an important role in strengthening the whole structures of the compounds.
A novel coordination complex [Zn（bipy）2（H2O）4]·L·3H2O （1, bipy = 4,4＇-bipyridine, LHNa = aniline-2,5-disulfonic acid monosodium salt） has been synthesized from LHNa by using hydrothermal method and structurally characterized. The result indicates that complex 1 belongs to the monoclinic system, space group P21/c with a = 20.392（3）, b = 7.4052（12）, c = 23.843（3） , β = 116.253（10）°, V = 3.2291（8） 3, Z = 4, Dc = 1.553 g·cm-3, μ = 0.962 mm-1, F（000） = 1568, and the final R = 0.0497 and wR = 0.1290. The complex 1 has a 0-D discrete structure, and generates an infinite 3-D network with the aid of O–H…O hydrogen bonds and π-π interactions.
