Unsymmetrical amidinate complexes of cobalt and manganese: Synthesis, structure and catalytic properties

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2025-04-21 DOI:10.1016/j.poly.2025.117562

Xinhua Hu , Hongbo Tong , Meisu Zhou

引用次数: 0

Abstract

Unsymmetrical amidinate Co(Ⅱ) complexes [Co{N(2,6-ⁱPr₂C₆H₃)C(Ph)N(SiMe₃)}₂] (1,1a) and Mn(Ⅱ) complex [Mn{N(2,6-ⁱPr₂C₆H₃)C(Ph)N(SiMe₃)}₂PhCN] (3) were synthesized and characterized. Their single crystal X-ray diffraction results were presented to analyze the differences in crystal formation. These complexes were used as catalyst in the addition reaction of aromatic amines with N,N’-diisopropylcarbodiimide. Complex 1 exhibits relatively higher catalytic activity. Especially in the addition reaction of 2,6-diisopropylaniline, which has large steric hindrance, with N,N’-diisopropylcarbodiimide in THF solvent, the catalyzed yield could be up to 99 %.

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钴锰不对称酰胺酸配合物：合成、结构及催化性能

合成了不对称氨基化Co（Ⅱ）配合物[Co{N(2,6- ipr2c6h3)C(Ph)N(SiMe3)}2] （1,1a）和Mn（Ⅱ）配合物[Mn{N(2,6- ipr2c6h3)C(Ph)N(SiMe3)}2PhCN](3)并对其进行了表征。给出了它们的单晶x射线衍射结果，分析了晶体形成的差异。这些配合物作为催化剂用于芳香胺与N，N ' -二异丙基碳二亚胺的加成反应。配合物1具有较高的催化活性。特别是具有较大位阻的2,6-二异丙基苯胺与N，N ' -二异丙基碳二亚胺在THF溶剂中的加成反应，催化收率可达99%以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

期刊介绍： Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry. Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.