...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Inorganica Chimica Acta >The multinuclear cobaloxime complexes-based catalysts for direct synthesis of cyclic carbonate from of epichlorohydrin using carbon dioxide: Synthesis and characterization
【24h】

The multinuclear cobaloxime complexes-based catalysts for direct synthesis of cyclic carbonate from of epichlorohydrin using carbon dioxide: Synthesis and characterization

机译：基于多环钴肟配合物的二氧化碳直接利用环氧氯丙烷直接合成环状碳酸酯的催化剂：合成与表征

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

The novel examples of dicobaloxime [(dmgH)_ClCo-(4,4'bpy)-CoCl(dmgH)_] (1), organodicobaloxime [(dmgH)_PhCH_Co-(4,4'bpy)-CoCH_Ph(dmgH)_] (2), and the intramolecular hydrogen (O-H...O) bridges were replaced Cu(II) containing multinuclear cobaloxime complexes [{dmgCu(NAN)}_2ClCo-(4,4'-bpy)-CoCl{dmgCu(N-N)}_2](ClO_4)_4 (3-9) were synthesized, characterized and used in direct synthesis cyclic carbonates from carbon dioxide and various epoxides. The dicobaloxime complex (1) was used as precursors for building the intramolecular hydrogen (O-H...O) bridges replaced Cu(II) ions containing complexes (3-9). All of compounds have been characterized by ~1H and ~(13)C NMR spectra, FT-IR spectra, UV-Vis spectra, elemental analysis, melting point measurements, LC-MS spectra, molar conductivity measurements, and magnetic susceptibility techniques. Among the nine metal complexes, complex (2) (bearing cobalt-carbon bound) displayed the higher catalytic efficient than other complexes (1 and 3-9) under the same catalytic conditions. The intramolecular hydrogen (O-H...O) bridges were replaced Cu(II) containing complexes (3-9) that bear the dimethyl glyoximate ligands and linked ligands exhibited much lower catalytic efficiencies as compared with complexes (1) and (2).
机译：二钴氧肟[（dmgH）_ClCo-（4,4'bpy）-CoCl（dmgH）_]（1），有机二氧钴肟[[dmgH] _PhCH_Co-（4,4'bpy）-CoCH_Ph（dmgH）_]的新颖实例（2），将分子内氢（OH ... O）桥替换为含多核钴肟配合物[{dmgCu（NAN）} _ 2ClCo-（4,4'-bpy）-CoCl {dmgCu（NN））的Cu（II） } _2]（ClO_4）_4（3-9）的合成，表征和用于由二氧化碳和各种环氧化物直接合成环状碳酸酯。二钴肟肟配合物（1）用作构建分子内氢（O-H ... O）桥的前体，取代了含有配合物（3-9）的Cu（II）离子。所有化合物的特征在于〜1H和〜（13）C NMR光谱，FT-IR光谱，UV-Vis光谱，元素分析，熔点测量，LC-MS光谱，摩尔电导率测量和磁化率技术。在这九种金属配合物中，在相同的催化条件下，配合物（2）（带有钴碳键）显示出比其他配合物（1和3-9）更高的催化效率。分子内的氢（O-H ... O）桥被取代的含Cu（II）的配合物（3-9）带有二甲基草铵膦配体，并且与配合物（1）和（2）相比，连接的配体表现出低得多的催化效率。

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