聚[（μ-5,7-二氢-1,3-二噻吩并[3,4-b:3',4'-d]吡嗪-κ2S,S'）四-μ-碘代-四铜]：一种三维铜（I）配位聚合物

Assoumatine Tokouré, Stoeckli-Evans Helen

Institute of Chemistry, University of Neuchâtel, Av. de Bellevax 51, CH-2000 Neuchâtel, Switzerland.

Institute of Physics, University of Neuchâtel, rue Emile-Argand 11, CH-2000 Neuchâtel, Switzerland.

IUCrdata. 2020 Mar 27;5(Pt 3):x200401. doi: 10.1107/S2414314620004010. eCollection 2020 Mar.

The reaction of ligand 5,7-di-hydro-1,3-dithieno[3,4-:3',4'-]pyrazine () with CuI lead to the formation of a three-dimensional coordination polymer, incorporating the well known [Cu I ] staircase motif ( = 4). These polymer [CuI] chains are linked the N and S atoms of the ligand to form the three-dimensional coordination polymer poly[(μ-5,7-di-hydro-1,3-dithieno[3,4-:3',4'-]pyrazine-κ :'::')tetra-μ-iodido-tetra-copper], [CuI(CHNS)] (). The asymmetric unit is composed of half a ligand mol-ecule, with the pyrazine ring located about a center of symmetry, and two independent copper(I) atoms and two independent I ions forming the staircase motif centers of inversion symmetry. The framework is consolidated by C-H⋯I hydrogen bonds.

配体5,7-二氢-1,3-二噻吩并[3,4-b:3',4'-d]吡嗪（）与碘化亚铜反应生成一种三维配位聚合物，其中包含著名的[CuI]阶梯结构单元（= 4）。这些聚合物[CuI]链通过配体的N和S原子相连，形成三维配位聚合物聚[(μ-5,7-二氢-1,3-二噻吩并[3,4-b:3',4'-d]吡嗪-κ2N:κ2S::')四-μ-碘代-四铜]，[Cu4I4(CH2N2S2)] （）。不对称单元由半个配体分子组成，吡嗪环位于对称中心周围，两个独立的铜（I）原子和两个独立的碘离子形成具有反演对称中心的阶梯结构单元。该骨架通过C-H⋯I氢键得以巩固。