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呈现强链内铁磁耦合的EO-叠氮与羧基双重桥连一维铜链化合物:合成、晶体结构、磁性及DFT计算
引用本文:马晓慧,李菲菲,岑培培,刘翔宇,周惠良,罗树常,吴玥暐,张诚诚,宋伟明. 呈现强链内铁磁耦合的EO-叠氮与羧基双重桥连一维铜链化合物:合成、晶体结构、磁性及DFT计算[J]. 无机化学学报, 2017, 33(9): 1639-1648
作者姓名:马晓慧  李菲菲  岑培培  刘翔宇  周惠良  罗树常  吴玥暐  张诚诚  宋伟明
作者单位:宁夏大学化学化工学院, 煤炭高效利用与绿色化工国家重点实验室, 银川 750021,宁夏大学化学化工学院, 煤炭高效利用与绿色化工国家重点实验室, 银川 750021,宁夏大学化学化工学院, 煤炭高效利用与绿色化工国家重点实验室, 银川 750021,宁夏大学化学化工学院, 煤炭高效利用与绿色化工国家重点实验室, 银川 750021,宁夏大学化学化工学院, 煤炭高效利用与绿色化工国家重点实验室, 银川 750021,贵州工程应用技术学院化工系, 毕节 551700,宁夏大学化学化工学院, 煤炭高效利用与绿色化工国家重点实验室, 银川 750021,宁夏大学化学化工学院, 煤炭高效利用与绿色化工国家重点实验室, 银川 750021,宁夏大学化学化工学院, 煤炭高效利用与绿色化工国家重点实验室, 银川 750021
基金项目:国家自然科学基金(No.21463020),宁夏自然科学基金(No.NZ16035),宁夏高等学校优秀青年教师培育项目(No.NGY2016063)和国家级大学生创新创业训练计划(No.201710749003)资助。
摘    要:合成了一例以取代苯甲酸衍生物为辅助配体的叠氮铜化合物[Cu(4-Fb)(N3)(H2O)]n1)(4-Fb=4-formylbenzoate),并对其结构和磁性进行了表征。单晶结构研究表明,化合物1中的最小不对称单元包含一个晶体学独立的Cu(Ⅱ)离子,中心离子呈现了扭曲的四棱锥几何构型。相邻的Cu(Ⅱ)离子之间通过交替的μ-1,1-(EO)-叠氮和syn,syn-羧酸双重桥连接成一维线性金属链。磁性研究揭示,双重桥的超交换反补偿效应导致目标化合物中链内相邻的Cu(Ⅱ)离子之间表现出强的铁磁耦合作用(J=72.1 cm-1)。但是并没有观察到铁磁有序和慢磁弛豫现象。作为影响磁性能的重要结构参数,化合物中Cu-N-Cu的角度(113.34°)与已报道的含双重桥的叠氮铜体系相符。对化合物的磁构关系进行了讨论和探究。此外,密度泛函理论(DFT)计算结果为化合物中相邻Cu(Ⅱ)离子间的铁磁耦合作用提供了定性的理论解释。

关 键 词:叠氮铜  取代苯甲酸  晶体结构  铁磁性  DFT计算
收稿时间:2017-04-13
修稿时间:2017-05-17

One-Dimensional Cu(II)Chain Compound with Simultaneous EO-Azido and Carboxylato Bridges Displaying Strong Ferromagnetic Coupling:Synthesis, Crystal Structure, Magnetic Properties with DFT Calculations
MA Xiao-Hui,LI Fei-Fei,CEN Pei-Pei,LIU Xiang-Yu,ZHOU Hui-Liang,LUO Shu-Chang,WU Yue-Wei,ZHANG Cheng-Cheng and SONG Wei-Ming. One-Dimensional Cu(II)Chain Compound with Simultaneous EO-Azido and Carboxylato Bridges Displaying Strong Ferromagnetic Coupling:Synthesis, Crystal Structure, Magnetic Properties with DFT Calculations[J]. Chinese Journal of Inorganic Chemistry, 2017, 33(9): 1639-1648
Authors:MA Xiao-Hui  LI Fei-Fei  CEN Pei-Pei  LIU Xiang-Yu  ZHOU Hui-Liang  LUO Shu-Chang  WU Yue-Wei  ZHANG Cheng-Cheng  SONG Wei-Ming
Affiliation:College of Chemistry and Chemical Engineering, State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China,College of Chemistry and Chemical Engineering, State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China,College of Chemistry and Chemical Engineering, State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China,College of Chemistry and Chemical Engineering, State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China,College of Chemistry and Chemical Engineering, State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China,School of Chemical Engineering, Guizhou University of Engineering Science, Bijie, Guizhou 551700, China,College of Chemistry and Chemical Engineering, State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China,College of Chemistry and Chemical Engineering, State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China and College of Chemistry and Chemical Engineering, State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China
Abstract:
Keywords:azido-copper  benzoate  crystal structure  magnetic property  DFT calculation
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