...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of chemical crystallography >Synthesis and Structure of (Bis(1-propylbenzimidazol-2-yl)-trans-1,2-cyclohexane)copper(II) Dichloride and the Structure of a Novel, Unexpected By-Product
【24h】

Synthesis and Structure of (Bis(1-propylbenzimidazol-2-yl)-trans-1,2-cyclohexane)copper(II) Dichloride and the Structure of a Novel, Unexpected By-Product

机译：（双（1-丙基苯并咪唑-2-基）-反-1,2-环己烷）二氯化铜（II）的合成，结构及新型意外产物的结构

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Two structures containing the novel ligand bis(1-propylbenzimidazol-2-yl)- trans -1,2-cyclohexane, L, are reported. The first structure, (bis(1-propylbenzimidazol-2-yl)- trans -1,2-cyclohexane)copper(II) dichloride, Cu(II)(L)Cl 2_1, crystallized in the monoclinic space group P 2 1 with a = 10.992(4) ?, b = 13.576(5) ?, c = 18.047(7) ?, β = 106.909(8) and V = 2576.7(16) ?~3 and Z = 4. Complex 1 exhibits a D 2d -flattened tetrahedral Cu(II)N_2 Cl_2 coordination geometry, for which the four-coordinate geometry index τ_4 of 0.59 lies almost midway between the ideal geometry values of zero (square-planar) and 1 (tetrahedral). The second and unexpected structure, (bis(1-hydro-3-propylbenzimidazol-1-ium)- trans -1,2-cyclohexane)(μ~4 -oxo-hexa-(μ~2 -chloro)-tetra(chloro-copper(II)) di(nitromethane) solvate, 2[H_2 L]~(2+) [Cu_4 OCl_(10)]~(4?) ·(CH_3 NO_2)_2, 2, consists of three dimensionally hydrogen bonded bis(benzimidazolium) dications and tetra-copper(II)-oxo-chloride tetra-anions, interspersed with nitromethane solvate molecules. A balanced equation for the formation of the byproduct suggests that it forms via an acid-base reaction in the presence of water in the reaction mixture. The complex crystallized in the triclinic space group P ?1 with a = 13.696(3) ?, b = 13.819(3) ?, c = 16.797(4) ?, α = 89.480(4), β = 87.308(4)°, γ = 89.434(4) and V = 3175.3(12) ?~3 and Z = 2. Ligand L contains two stereogenic centers, each of the same handedness, and, since the space groups determined for structures 1 and 2 are centrosymmetric, both structures are racemates. Graphical Abstract Both title complexes contain the ligand bis(1-propylbenzimidazol-2-yl)- trans -1,2-cyclohexane. The first structure corresponds to the target complex with D 2d -flattened tetrahedral Cu(II)N_2 Cl_2 coordination. For this structure, the four-coordinate geometry index τ 4 of 0.59 lies almost midway between the ideal geometry values of zero (square-planar) and 1 (tetrahedral). The second and unexpected structure is a minor by-product which contains two hydrogen bonded diprotonated ligand dictations and a copper-oxo tetra-anion interspersed with nitromethane. A balanced equation for the formation of the byproduct suggests that it forms via an acid-base reaction in the presence of water in the reaction mixture.
机译：报道了两个含有新型配体双（1-丙基苯并咪唑-2-基）-反式-1,2-环己烷L的结构。第一结构（双（1-丙基苯并咪唑-2-基）-反式-1,2-环己烷）铜（II）二氯化铜（II）（L）Cl 2_1在单斜空间群P 2 1中结晶n与a = 10.992（4）α，b = 13.576（5）α，c = 18.047（7）α，β= 106.909（8）和V = 2576.7（16）α〜3并且Z = 4。 D 2d-展平的四面体Cu（II）N_2 Cl_2配位几何，其四坐标几何指数τ_4为0.59，几乎位于理想几何值0（方平面）和1（四面体）之间的中间位置。第二个意外结构（双（1-氢-3-丙基苯并咪唑-1-基）-反式-1,2-环己烷）（μ〜4-氧代-六-（μ〜2-氯）-四（氯-铜（II））二（硝基甲烷）溶剂化物2 [H_2 L]〜（2+）[Cu_4 OCl_（10）]〜（4？）·（CH_3 NO_2）_2，2，由三个维数成氢键的双（苯并咪唑鎓）指示剂和四铜（II）-氯氧化四阴离子散布在硝基甲烷溶剂化物分子中，形成副产物的平衡方程式表明，副产物的形成是在水存在下，通过酸碱反应形成的。在三斜空间群P？1中结晶的配合物，其中a = 13.696（3）α，b = 13.819（3）α，c = 16.797（4）α，α= 89.480（4），β= 87.308 （4）°，γ= 89.434（4）且V = 3175.3（12）？〜3和Z =2。配体L包含两个立体异构中心，每个中心都具有相同的惯性，并且由于确定了结构1和结构的空间基团2是中心对称的，两个结构都是消旋体。配体双（1-丙基苯并咪唑-2-基）-反式-1,2-环己烷。第一结构对应于具有D 2d-展平的四面体Cu（II）N_2Cl_2配位的靶复合物。对于这种结构，四坐标几何指数τ4为0.59，几乎位于理想几何值零（方平面）和1（四面体）之间的中间位置。第二个出乎意料的结构是次要的副产物，它包含两个氢键合的双质子化的配位基和一个铜-氧代四阴离子散布在硝基甲烷中。副产物形成的平衡方程表明，在反应混合物中存在水的情况下，它是通过酸碱反应形成的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号