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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >The influence of coordination modes and active sites of a 5-(triazol-1-yl) nicotinic ligand on the assembly of diverse MOFs
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The influence of coordination modes and active sites of a 5-(triazol-1-yl) nicotinic ligand on the assembly of diverse MOFs

机译:5-(三唑-1-基)烟碱配体的协调模式和活性位点对多种MOF组装的影响

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摘要

Six new complexes based on 5-(triazol-1-yl) nicotinic acid (HL), namely [Cu-2(L)(3)(H2O)(OH)](n) (1), [Co(L)(2)(H2O)(2)](n) (2), [Mn(L)(2)(H2O)(2)](n) (3), {[Co(L)(H2O)(0.5)(DMF)(0.5)(NO3)(0.5)].(Cl)(0.5).DMF.2H(2)O} n (4), {[Cu(L) (O)(0.5)].CH3OH.2.5H(2)O}(n) (5) and {[Co-2(L)(4)(H2O)].2DMA.2H(2)O}(n) (6), were synthesized under hydro(solvo) thermal conditions. The L-ligand in 1-6 reveals various coordination modes and forms diverse secondary building units (SBUs) in the final structures. Complex 1 shows a 2D layered structure with a rare (3,8)connected topology based on tetranuclear [Cu-4(COO)(6)(H2O)(2)(OH)(2)N-6] SBUs. 2 and 3 are isostructural and display 2D 4-connected sql nets with a point symbol of (4(4).6(2)). 4 and 5 have similar spatial 3D porous frameworks, which can be simplified as a (3,6)-connected 2-nodal net via dinuclear [Co-2(COO)(2)(O)(2)(NO3) (N)(4)] SBUs and [Cu-2(COO)(2)(O)(N)(4)] SBUs, respectively. 6 is a 3D porous framework constructed by dinuclear [Co-2(COO)(4)(H2O)(N)(4)] motifs with a uninodal 4-connected qtz net. The magnetic properties and gas sorption behaviour of these complexes were investigated carefully, showing that 3 exhibits ferrimagnetic character and 4 demonstrates its effective storage capacity for CO2 as well as high selectivity for CO2 over CH4 under ambient conditions.
机译:基于5-(1,2,4-三唑-1-基)烟酸(HL),即[铜 - 2(L)(3)(H 2 O)(OH)](N)(1)六新络合物,[CO(L) (2)(H 2 O)(2)](N)(2),[锰(L)(2)(H 2 O)(2)](N)(3),{[CO(L)(H 2 O)(0.5 )(DMF)(0.5)(NO 3)(0.5)]。(CL)(0.5).DMF.2H(2)O} n的(4),{[铜(L)(O)(0.5)]。CH3OH .2.5H(2)O}(n)的(5)和{[CO-2(L)(4)(H2O)]。2DMA.2H(2)O}(n)的(6),进行加氢下合成(SOLVO)的温度条件。该L配体在1-6揭示了各种配位模式,并在最后的结构形式多样次级结构单元(的SBU)。络合物1示出了基于四核物[Cu-4(COO)(6)(H 2 O)(2)(OH)(2)N-6]的SBU一个二维层状有稀土(3,8)连接的拓扑结构的结构。 2和3是同构和显示2D 4-连接SQL鱼网用的(4(4)0.6(2))上的点符号。图4和5具有相似的空间三维多孔骨架,其可以被简化为一个(3,6)经由双核 - 连接2-节点净[CO-2(COO)(2)(O)(2)(NO 3)(N )(4)]的SBU和物[Cu-2(COO)(2)(O)(N)(4)]的SBU,分别。图6是由双核构造的三维多孔骨架[CO-2(COO)(4)(H2O)(N)(4)]基序具有单节4连接QTZ净。这些复合物的磁特性和气体吸附行为进行认真调查,显示出3个具有亚铁磁特性和4演示了用于CO 2的有效存储容量以及用于在环境条件下的CO 2超过CH 4的高选择性。

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