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首页> 外文期刊>Crystal growth & design >Formation of One-Dimensional Water Inside an Organic Solid: Supramolecular Architectures Derived by the Interaction of Aminobenzoic Acids with Nitrogen Bases and H_2SO_4
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Formation of One-Dimensional Water Inside an Organic Solid: Supramolecular Architectures Derived by the Interaction of Aminobenzoic Acids with Nitrogen Bases and H_2SO_4

机译：有机固体内部一维水的形成：氨基苯甲酸与氮碱和H_2SO_4相互作用产生的超分子结构

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Three different organic supramolecular architectures derived from 2- and 3-aminobenzoic acids are reported. 3-Aminobenzoic acid (3-ABA-H) forms complexes with 2-aminopyridine (2-AP) and 1,4-diazabicyclo[2,2,2]octane (DABCO) to yield [(3-ABA)(2-AP-H)] (1) and [(3-ABA)(DABCO-H)(H_2O)_2] (2), respectively. 2-Aminobenzoic acid (2-ABA-H), on the other hand, interacts with sulfuric acid in the presence of V_2O_5 to yield [(2-ABA-H_2)_4(HSO_4)_2(SO_4)(H_2O)] (3). Compounds 1-3 have been obtained as single crystals and characterized by elemental analysis, IR and 1H NMR spectroscopy, and single-crystal X-ray diffraction techniques. Compound 1 crystallizes in the monoclinic space group P2_(1/c) [a = 9.6455(5) A, b = 10.9229(7) A, c = 11.976(2) A, β = 112.932(7)°, R1 = 0.0363]. It is an infinite two-dimensional layered polymer in which the carboxylic acid hydrogen is transferred to the pyridine nitrogen. Compound 2 crystallizes in the monoclinic space group Cc [a = 14.2950(9), b = 11.7660(7), c = 9.813(1) A, β = 116.214(7)°, R1 = 0.0492], in which one of the DABCO nitrogens is protonated by accepting the proton of the carboxylic acid. The two water molecules present in the asymmetric part of the unit cell of 2 form an unusual assembly of water to form a one-dimensional polymeric chain through hydrogen bonding. Compound 3 crystallizes in the triclinic space group P1-bar [a = 7.470(1), b = 11.128(1), c = 22.552(2) A, α = 85.075(7)°, β = 88.712(9)°, γ = 72.509(8)°, R1 = 0.0573]. A number of N-H···O, O-H···O, and/or N-H···N hydrogen bonds are prevalent in the structures of 1-3, resulting in the formation a two- or three-dimensional supramolecular architecture in these compounds.
机译：报道了衍生自2-和3-氨基苯甲酸的三种不同的有机超分子结构。 3-氨基苯甲酸（3-ABA-H）与2-氨基吡啶（2-AP）和1,4-二氮杂双环[2,2,2]辛烷（DABCO）形成络合物，生成[（3-ABA）（2- AP-H）]（1）和[（3-ABA）（DABCO-H）（H_2O）_2]（2）。另一方面，在V_2O_5存在下，2-氨基苯甲酸（2-ABA-H）与硫酸相互作用，生成[（2-ABA-H_2）_4（HSO_4）_2（SO_4）（H_2O）]（3 ）。已获得化合物1-3，为单晶，并通过元素分析，IR和1H NMR光谱以及单晶X射线衍射技术进行了表征。化合物1在单斜空间群P2_（1 / c）中结晶[a = 9.6455（5）A，b = 10.9229（7）A，c = 11.976（2）A，β= 112.932（7）°，R1 = 0.0363 ]。它是一种无限的二维层状聚合物，其中羧酸氢转移到吡啶氮上。化合物2在单斜空间群Cc中结晶[a = 14.2950（9），b = 11.7660（7），c = 9.813（1）A，β= 116.214（7）°，R1 = 0.0492]，其中DABCO氮通过接受羧酸的质子来质子化。存在于2的晶胞的不对称部分中的两个水分子形成异常的水组装，以通过氢键形成一维聚合物链。化合物3在三斜晶空间群P1-bar中结晶[a = 7.470（1），b = 11.128（1），c = 22.552（2）A，α= 85.075（7）°，β= 88.712（9）°， γ＝ 72.509（8）°，R1 ＝ 0.0573]。在1-3的结构中普遍存在多个NH··O，OH··O和/或NH··N氢键，导致在这些结构中形成二维或三维超分子结构。化合物。

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