Semirigid organic ligands can adopt different conformations to construct coordination polymers with more diverse structures when compared to those constructed from rigid ligands. A new asymmetric semirigid organic ligand, 4‐{2‐[(pyridin‐3‐yl)methyl]‐2H‐tetrazol‐5‐yl}pyridine (L), has been prepared and used to synthesize three bimetallic macrocyclic complexes and one coordination polymer, namely, bis(μ‐4‐{2‐[(pyridin‐3‐yl)methyl]‐2H‐tetrazol‐5‐yl}pyridine)bis[dichloridozinc(II)] dichloromethane disolvate, [Zn₂Cl₄(C₁₂H₁₀N₆)₂]·2CH₂Cl₂, (I), the analogous chloroform monosolvate, [Zn₂Cl₄(C₁₂H₁₀N₆)₂]·CHCl₃, (II), bis(μ‐4‐{2‐[(pyridin‐3‐yl)methyl]‐2H‐tetrazol‐5‐yl}pyridine)bis[diiodidozinc(II)] dichloromethane disolvate, [Zn₂I₄(C₁₂H₁₀N₆)₂]·2CH₂Cl₂, (III), and catena‐poly[[[diiodidozinc(II)]‐μ‐4‐{2‐[(pyridin‐3‐yl)methyl]‐2H‐tetrazol‐5‐yl}pyridine] chloroform monosolvate], {[ZnI₂(C₁₂H₁₀N₆)]·CHCl₃}_n, (IV), by solution reaction with ZnX₂ (X = Cl and I) in a CH₂Cl₂/CH₃OH or CHCl₃/CH₃OH mixed solvent system at room temperature. Complex (I) is isomorphic with complex (III) and has a bimetallic ring possessing similar coordination environments for both of the Zn^II cations. Although complex (II) also contains a bimetallic ring, the two Zn^II cations have different coordination environments. Under the influence of the I⁻ anion and guest CHCl₃ molecule, complex (IV) displays a significantly different structure with respect to complexes (I)–(III). C—H…Cl and C—H…N hydrogen bonds, and π–π stacking or C—Cl…π interactions exist in complexes (I)–(IV), and these weak interactions play an important role in the three‐dimensional structures of (I)–(IV) in the solid state. In addition, the fluorescence properties of L and complexes (I)–(IV) were investigated.

中文翻译：

---

由半刚性多齿含氮配体生成的三种大环超分子配合物和一种含ZnII的配位聚合物的合成与结构

与由刚性配体构造的那些相比，半刚性有机配体可以采用不同的构象来构造结构更多样化的配位聚合物。制备了一种新的不对称半刚性有机配体4- {2-[（（吡啶基-3-基）甲基] -2- H-四唑-5-基}吡啶（L），用于合成三种双金属大环配合物和一种配位聚合物，即双（μ-4-[2-[（（吡啶基-3-基）甲基] -2 H-四唑-5-基}吡啶）双[二氯唑啉（II）]二氯甲烷二溶剂化物，[Zn ₂ Cl ₄（C ₁₂ H ₁₀ N ₆）₂ ]·2CH ₂ Cl ₂，（I），类似的氯仿单溶剂化物[Zn ₂ Cl ₄（C ₁₂ H ₁₀ N ₆）₂ ]·CHCl ₃，（II），双（μ-4-{2-[（（吡啶基-3-基）甲基]] 2 ħ -四唑-5-基}吡啶）双[diiodidozinc（II）]的二氯甲烷二溶剂化物，[锌₂我₄（C ₁₂ H ^ ₁₀ ñ ₆）₂ ]·2CH ₂氯₂，（III），和系列聚[[[二碘二嗪（II）]-μ-4-{2-[（吡啶-3-基）甲基] -2- H-四唑-5-基}吡啶]氯仿单溶剂化物，{[ZnI ₂（C ₁₂ H ₁₀ N ₆）]·CHCl ₃ } _n（IV），通过与Zn X ₂（X = Cl和I）溶液反应在室温下，在CH ₂ Cl ₂ / CH ₃ OH或CHCl ₃ / CH ₃ OH混合溶剂体系中。配合物（I）与配合物（III）是同晶的，并且具有对于两个Zn ^II阳离子具有相似配位环境的双金属环。虽然复杂（II）还包含一个双金属环，这两个Zn ^II阳离子具有不同的配位环境。根据我的影响^-阴离子的评价和三氯甲烷₃分子，复合物（IV）显示一个显著不同结构相对于复合物（本人） - （III）。C–H…Cl和C–H…N氢键以及π–π堆积或C–Cl…π相互作用存在于配合物（I）–（IV）中，这些弱相互作用在三维中起重要作用（I）–（IV）的固态结构。此外，L和配合物的荧光性质（I）（IV）进行了调查。