Synthesis and Structure of a Mn（II）-triazolyl Coordination Polymer Consisting of Dinuclear Units

• 作者: KONG Fan-Zhen WANG Rui-Hu WU Tao XU Hong-Yan YU Zhang-Yu
• 来源期刊: 结构化学
• 学科: 化学
• 关键词: 配位聚合物 双核 三唑 单元 Mn 组成 X-射线衍射分析 结构
• 年，卷（期）: 2012,（11）
• 页码范围: 1557-1562
• 页数: 6页
• 分类号: O614.121|O626.26
• 语种: 英文

摘要

The reaction of bis(1,2,4-triazolyl-4-yl) (btr) and MnClO4-6H20 gave rise to a Mn(II) complex comprised of unprecedented dinuclear Mn(II) units, {[Mn2(btr)s(H20)5]- (ClO4)4(H20)2]n (1). Single-crystal X-ray diffraction analysis revealed that 1 crystallizes in the monoclinic space group C2/c. btr adopts two types of bridging modes. One serves as μ-N1 :N2 bridge through one triazolyl ring of btr forming a dinuclear Mn(II) unit, and the other adopts an exo-bidentate mode using two nitrogen atoms from each triazolyl ring and links the dinuclear units into a 2D cationic layer. ClO4 acts as a counter anion and does not take part in coordination. Interestingly, 2D layers are packed in an ABCABC mode. ClO4- and uncoordinated water molecules locate between the adjacent layers, and extensive hydrogen bonds further stabilize the whole framework.