| 以对苯二氧基二乙酸和咪唑基化合物为配体的镍、镉配合物的合成和晶体结构 |
| Syntheses and Crystal Structures of Nickel(Ⅱ) and Cadmium(Ⅱ) Coordination Polymers Constructed by Benzene-1,4-dioxydiacetate and 4,4-Bis(imidazole-l-yl)diphenyl Ether |
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| 摘要: 以对苯二氧基二乙酸(H2BDOA)和4,4'-二咪唑基二苯醚(BIDPE)为原料,分别与氯化镍、氯化镉在水热条件下反应,得到2个结构不同的配位聚合物[Ni(BDOA)(BIDPE)(H2O)]n(1)和[Cd(BDOA)0.5(BIDPE)Cl]n(2)。对它们进行了元素分析、红外光谱分析,并利用X-射线衍射测定了它们的单晶结构。配合物1属于三斜晶系,P1空间群,a=0.93497(8)nm,b=1.03231(9)nm,c=1.35291(12)nm,α=96.3980(10)°,β=90.7290(10)°,γ=102.0270(10)°,V=1.26831(19)nm3,Z=2,Mw=603.22,Dc=1.580g·cm-3,μ=0.827,F(000)=624,R1=0.0395,wR2=0.0895(I>2σ(I))。配合物2也属于三斜晶系,P1空间群,a=1.01751(7)nm,b=1.04299(7)nm,c=1.17338(8)nm,α=68.7230(10)°,β=71.8260(10)°,γ=76.0910(10)°,V=1.09105(13)nm3,Z=2,Mw=562.26,Dc=1.711g·cm-3,μ=1.163,F(000)=562,R1=0.0210,wR2=0.0537(I>2σ(I))。配合物1中镍离子通过2种配体桥联成二维波浪形层状结构,而配合物2中镉离子通过2个Cl离子连接成一个双核Cd2单元,双核单元再通过2种配体连接成一维链状结构。结果说明了金属离子在配合物组装过程中起着非常重要的作用。此外,研究了它们的荧光性质。 |
| 关键词: 配位聚合物 双咪唑配体 芳香羧酸配体 晶体结构 |
| 基金项目: 国家自然科学基金(No.21271106)和教育部科学技术重点项目(No.210102)资助。 |
| Abstract: Two coordination polymers, [Ni(BDOA)(BIDPE)(H2O)]n (1) and [Cd(BDOA)0.5(BIDPE)Cl]n (2), (H2BDOA=benzene-1,4-dioxydiacetic acid and BIDPE=4,4'-bis(imidazole-l-yl)diphenyl ether), have been synthesized and characterized by IRspectroscopy, elemental analysis and single-crystal X-ray diffraction. Complex 1 crystallizes in triclinic, space group P1 with a=0.93497(8) nm, b=1.03231(9) nm, c=1.35291(12) nm, α=96.3980(10)°, β=90.7290(10)°, γ=102.0270(10) °, V=1.26831(19) nm3, Z=2, Mw=603.22, Dc=1.580 g·cm-3, μ=0.827, F(000)=624, R1=0.0395, wR2=0.0895(I>2σ(I)). Complex 2 belongs to triclinic, space group P1 with a=1.01751(7) nm, b=1.04299(7) nm, c=1.17338(8) nm, α=68.7230(10)°, β=71.8260(10)°, γ=76.0910(10)°, V=1.09105(13) nm3, Z=2, Mw=562.26, Dc=1.711 g·cm-3, μ=1.163, F(000)=562, R1=0.0210, wR2=0.0537(I>2σ(I)). Structural analyses reveal that complex 1 exhibits a two-dimensional (2D) corrugated layer structure, whereas complex 2 possesses a one-dimensional (1D) chain structure which is generated by joining binuclear Cd2 units by BIDPEand BDOAligands. The results show that the nature of metal ions plays an important role in governing the molecular frameworks. The photochemical properties of two complexes have also been studied. |
| Keywords: coordination polymer bis(imidazole) ligands polycarboxylate crystal structure |
| 投稿时间：2015-03-01 修订日期：2015-03-31 |
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| 陈宏,喻敏,刘光祥.以对苯二氧基二乙酸和咪唑基化合物为配体的镍、镉配合物的合成和晶体结构[J].无机化学学报,2015,31(6):1261-1268. |
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