基于3,5-二(氧乙酸基)苯甲酸构建的多核锰(Ⅱ)配位聚合物的合成、晶体结构和氧化-还原性质 |
Three Manganese(Ⅱ) Coordination Polymers Composed of Polynuclear Cluster Blocks and 3,5-Bis-oxyacetate-benzoic Acid Linkers:Syntheses, Structures and Redox Properties |
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摘要: 采用1,3-二(4-吡啶基)丙烷为模板剂,水热法合成了3个以3,5-二(氧乙酸基)苯甲酸(H3BOABA)为配体的多核Mn(Ⅱ)配位聚合物:{(H3O)[Mn4(BOABA)2(OH)3(H2O)]·H2O}n(1),{(H3O)4[Mn7(BOABA)4(OH)6(H2O)2]}n(2),{(H3O)4[Mn7(BOABA)4(OH)4(Cl)2(H2O)2]·2H2O}n(3)。通过X射线衍射,元素分析、红外光谱和热重分析进行了结构表征。结构分析表明,1为正交Pbcm空间群,由四核锰簇单元[Mn4(μ3-OH)3(COO)10]构成具有(5,12)-连接的3D网络结构,拓扑符号为(32.47.5)2(38.423.514.621)。配位聚合物2与3为异质同构化合物,属正交Ccma空间群,分别由七核锰簇单元[Mn7(OH)6(COO)16]和[Mn7(OH)4Cl2(COO)16]构成的具有(3,12)-连接的2D网络结构,拓扑符号为(43)4(430.624.812)。测定了聚合物的氧化-还原电位。 |
关键词: 配位聚合物 3,5-二(氧乙酸基)苯甲酸 晶体结构 循环伏安 |
基金项目: 国家自然科学基金(No.21173197)资助项目 |
Abstract: Three polynuclear manganese(Ⅱ) coordination polymers(CPs), {(H3O)[Mn4(BOABA)2(OH)3(H2O)]·H2O}n (1), {(H3O)4[Mn7(BOABA)4(OH)6(H2O)2]}n (2) and {(H3O)4[Mn7(BOABA)4(OH)4(Cl)2(H2O)2]·2H2O}n (3) (H3BOABA=3,5-bis-oxyacetate-benzoic acid) have been synthesized under hydrothermal condition and structurally characterized by single crystal X-ray diffraction analyses, XRPD, IR spectra and thermal analyses. CP 1 can be rationalized as a binodal (5,12)-connected 3D topology network based on tetranuclear[Mn4(μ3-OH)3(COO)10] clusters with point symbol of (32.47.5)2(38.423.514.621). CPs 2 and 3 are isostructural and present binodal (3,12)-connected 2D topology network based respectively on heptanuclear[Mn7(OH)6(COO)16] and[Mn7(OH)4Cl2(COO)16] clusters with point symbol of (43)4(430.624.812). The cyclic voltammograms of the CPs reveal that the processes of the redox are all irreversible. |
Keywords: coordination polymer 3,5-bis-oxyacetate-benzoic acid crystal structure redox property |
投稿时间:2017-03-16 修订日期:2017-10-13 |
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吕灵芝,王晓娟,姜献荣,冯云龙.基于3,5-二(氧乙酸基)苯甲酸构建的多核锰(Ⅱ)配位聚合物的合成、晶体结构和氧化-还原性质[J].无机化学学报,2017,33(12):2169-2176. |
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