2-(2-苯并咪唑基)-6-甲基吡啶铜(Ⅰ) 铁(Ⅱ) 异双核配合物的合成与表征 |
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引用本文: | 曾雪花,罗燕生,狄宝生,夏勇,邱露,陈景林.2-(2-苯并咪唑基)-6-甲基吡啶铜(Ⅰ) 铁(Ⅱ) 异双核配合物的合成与表征[J].有色金属科学与工程,2017,8(1):94-98. |
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作者姓名: | 曾雪花 罗燕生 狄宝生 夏勇 邱露 陈景林 |
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作者单位: | 江西理工大学冶金与化学工程学院, 江西 赣州 341000 |
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基金项目: | 国家自然科学基金资助项目21561013江西省青年科学基金重大项目20143ACB21017江西省自然科学基金资助项目20142BAB203001江西理工大学清江青年英才支持计划资助项目 |
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摘 要: | 以1, 1′-双(二苯基膦) 二茂铁(dppf)、2-(2-苯并咪唑基)-6-甲基吡啶(Hbmp) 和Cu (CH3CN)4](ClO4) 作为起始原料,合成得到一个铜(Ⅰ) 铁(Ⅱ) 杂金属双核配合物Cu (Hbmp)(dppf)](ClO4)(1). X-射线单晶衍射结果表明:配合物1是一个铜(Ⅰ) 铁(Ⅱ) 异双核配合物,其中铜(Ⅰ) 离子以四配位方式,分别与2个氮原子和2个磷原子相连接形成一个变形的四面体构型,而铁(Ⅱ) 离子镶嵌在2个环戊二烯基之间构成一个交错式夹心饼干构型.配合物1在355~460 nm有一个弱的低能量宽吸收峰,来源于铜(Ⅰ) 离子到Hbmp配体的金属到配体电荷转移跃迁(MLCT),含有一些dppf到Hbmp的配体到配体电荷转移跃迁(LLCT).
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关 键 词: | 一价铜 苯并咪唑配体 双膦配体 异双核配合物 晶体结构 |
收稿时间: | 2016-07-22 |
Synthesis and characterization of 2-(2-benzimidazolyl)-6-methylpyridine Cu (Ⅰ) Fe (Ⅱ) heterodinuclear complex |
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Affiliation: | School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China |
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Abstract: | A Cu (Ⅰ) Fe (Ⅱ) heterometallic dinuclear complex Cu (Hbmp)(dppf)](ClO4) (1) was synthesized by using 1, 1′-bis (diphenylphosphino) ferrocene (dppf), 2-(2-benzimidazolyl)-6-methyl pyridine (Hbmp) and Cu (CH3CN)4](ClO4) as raw materials. As revealed by single-crystal X-ray diffraction, compound 1 is a Cu (Ⅰ) Fe (Ⅱ) heterodinuclear complex, in which the Cu (Ⅰ) ion adopts a four-coordinate mode and connects with two N and two P atoms to form a distorted tetrahedral configuration, while the Fe (Ⅱ) ion is sandwiched between two cyclopentadienyl moieties to generate a staggered sandwich biscuit geometry. Complex 1 has a weak low-energy broad absorption in the 355~460 nm region, which is assigned to metal-to-ligand charge-transfer (Cu (Ⅰ)→Hbmp, MLCT) transition, mixed with some ligand-to-ligand charge-transfer (dppf→Hbmp, LLCT) transition. |
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