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4′-(3-甲氧基-4-羟基苯基)-2,2′∶6′,2″-三联吡啶及其铜、锌配合物的合成、结构和性质(英文)

Syntheses, Structures and Properties of 4′-(3-Methoxy-4-Hydroxyphenyl)-2,2′∶6′,2″-Terpyridine Together with Copper and Zinc Complexes
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摘要 通过一锅反应制备了4′-(3-甲氧基-4-羟基苯基)-2,2′∶6 ′,2″-三联吡啶(L),通过重结晶的方法得到了其醋酸盐单晶体(HL)(CH3COO) (1),并以L为配体组装了过渡金属配合物[Cu(NO3)(CH3OH)L](NO3) (2)和[Zn(NO3)2L](C2H5OH) (3),通过元素分析、IR光谱和单晶X-射线衍射等表征了3个化合物的结构.结果表明,化合物1中,三联吡啶环呈反-反构型,而在2和3中,三联吡啶环呈现出顺-顺构型,然后采取三齿螯合模式连接金属离子形成单核单元.3个化合物中,三联吡啶分子之间以及它们与溶剂分子之间形成的氢键、π-π堆积和范德华力等相互作用将化合物1~3的单核单元连接形成三维网状结构. The ligand 4′-(3-methoxy-4-hydroxyphenyl)-2,2′ :6′ ,2″-terpyridine (L) and its transition-metal complexes have been prepared. The crystal structures of (HL)(CH3COO) (1), [Cu(NO3)(CH3OH)L](NO3) (2) and [Zn(NO3)2L](C2H5OH) (3) have been determined by single crystal X-ray diffraction. The result demonstrated that the three pyridine rings in crystal I were trans-trans conformation and one pyridine nitrogen atom is protonated, while the three pyridine rings of the ligand in crystal 2 and 3 were cis-cis conformation and they adopted tridentate chelating mode to link metal ions into mononuclear units. Further, these mononuclear units are assembled into 3D networks by hydrogen bonds,π-πstacking interactions and Van der Waals force. CCDC: 992747, 1; 992748, 2; 992749, 3.
出处 《无机化学学报》 SCIE CAS CSCD 北大核心 2014年第12期2796-2802,共7页 Chinese Journal of Inorganic Chemistry
基金 国家自然科学基金(No.21271138) 2013年国家大学生创新创业训练计划资助项目(No.201310058016)资助项目
关键词 三联吡啶 晶体结构 过渡金属配合物 氢键 terpyridine crystal structure transition metal complexes hydrogen bonds
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