A new 1,3,4-oxadiazole-containing bispyridyl ligand, namely 5-(pyridin-4-yl)-3-[2-(pyridin-4-yl)ethyl]-1,3,4-oxadiazole-2(3H)-thione (L), has been used to create the novel complexes tetranitratobisμ-5-(pyridin-4-yl)-3-[2-(pyridin-4-yl)ethyl]-1,3,4-oxadiazole-2(3H)-thione}zinc(II), [Zn2(NO3)4(C14H12N4OS)2], (I), andcatena-poly[[[dinitratocopper(II)]-bisμ-5-(pyridin-4-yl)-3-[2-(pyridin-4-yl)ethyl]-1,3,4-oxadiazole-2(3H)-thione}] nitrate acetonitrile sesquisolvate dichloromethane sesquisolvate], [Cu(NO3)(C14H12N4OS)2]NO3·1.5CH3CN·1.5CH2Cl2}n, (II). Compound (I) presents a distorted rectangular centrosymmetric Zn2L2ring (dimensions 9.56 × 7.06 Å), where each ZnIIcentre lies in a ZnN2O4} coordination environment. These binuclear zinc metallocycles are linked into a two-dimensional network through nonclassical C—H...O hydrogen bonds. The resulting sheets lie parallel to theacplane. Compound (II), which crystallizes as a nonmerohedral twin, is a coordination polymer with double chains of CuIIcentres linked by bridgingLligands, propagating parallel to the crystallographicaaxis. The CuIIcentres adopt a distorted square-pyramidal CuN4O coordination environment with apical O atoms. The chains in (II) are interlinkedviatwo kinds of π–π stacking interactions along [0\overline 11]. In addition, the structure of (II) contains channels parallel to the crystallographicadirection. The guest components in these channels consist of dichloromethane and acetonitrile solvent molecules and uncoordinated nitrate anions.
一种新的含双吡啶的 1,3,4-噁二唑配体,即 5-(吡啶-4-基)-3-[2-(吡啶-4-基)乙基]-1,3,4-噁二唑-2(3H)-硫酮 (L)、已被用于制造新型配合物四硝基双μ-5-(吡啶-4-基)-3-[2-(吡啶-4-基)乙基]-1,3,4-恶二唑-2(3H)-硫酮}锌(II)、[Zn2(NO3)4(C14H12N4OS)2], (I), andcatena-poly[[[dinitratocopper(II)]-bisμ-5-(pyridin-4-yl)-3-[2-(pyridin-4-yl)ethyl]-1,3,4-噁二唑-2(3H)-硫酮}]硝酸酯 乙腈倍半溶液二氯甲烷倍半溶液],[Cu(NO3)(C14H12N4OS)2]NO3-1.5CH3CN-1.5CH2Cl2}n,(II)。化合物 (I) 呈扭曲的矩形中心对称 Zn2L2 环(尺寸为 9.56 × 7.06 Å),其中每个 ZnII 中心都位于 ZnN2O4} 配位环境中。这些双核锌金属环通过非经典的 C-H...O 氢键连接成一个二维网络。由此形成的薄片平行于平面。化合物 (II) 结晶为非单面孪晶,是一种配位聚合物,其 CuII 中心双链通过桥接配体连接,平行于晶轴传播。CuII 中心与顶端的 O 原子形成扭曲的方锥体 CuN4O 配位环境。(II)中的链沿着[0\overline 11]以两种π-π堆积相互作用相互连接。此外,(II) 的结构还包含与晶体学方向平行的通道。这些通道中的客体成分包括二氯甲烷和乙腈溶剂分子以及未配位的硝酸根阴离子。