Self-assembly of Hybrid Solids {Hpz}2[H7CrMo6O24]·6H2O and [Co(2-Hampz)2Cl4] (pz = pyrazole, 2-ampz = 2-aminopyrazine) from Aqueous Solution

IF 0.4 4区化学 Q4 CRYSTALLOGRAPHY Journal of Chemical Crystallography Pub Date : 2022-10-01 DOI:10.1007/s10870-022-00964-y

Memsy Chiriamkandath Kuriakose, Jisha Joseph, Glinta Mandumpal Joyson, Jency Thomas

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Abstract

Two new hybrid solids viz. {Hpz}₂[H₇CrMo₆O₂₄]·6H₂O (1) and [Co(2-Hampz)₂Cl₄] (2) have been crystallized via solvent evaporation technique using pyrazole (pz) and 2-aminopyrazine (2-ampz) respectively. The solids were characterized using single crystal X-ray diffraction, fourier transform infrared spectroscopy, elemental analysis, scanning electron microscopy and thermal analysis. The solid 1 crystallized in orthorhombic system with space group Pbca, a = 23.1796(8), b = 11.1281(4), c = 25.1499(9) Å, Z = 8. The solid 2 crystallized in triclinic system with space group P-1, a = 7.1986(5), b = 7.3917(5), c = 7.8896(6) Å, α = 115.758(3), β = 110.450(3), γ = 96.904(3)°, Z = 1. While, solid 1 is a new Anderson–Evans cluster based solid, 2 is a new pseudopolymorph of cobalt complex [Co(2-ampz)₄Cl₂]. Crystal structure analysis suggested that supramolecular interactions facilitate the crystal packing in solids 1 and 2. In addition, the role of synthetic parameters in dictating the nature of self-assembly of solids 1 and 2 in aqueous medium has also been analyzed.

Graphical Abstract

An Anderson–Evans cluster based solid, {Hpz}₂[H₇CrMo₆O₂₄]·6H₂O (1) and a new pseudopolymorph of cobalt complex [Co(2-ampz)₄Cl₂] viz. [Co(2-Hampz)₂Cl₄] (2) have been synthesized using pyrazole (pz) and 2-aminopyrazine (2-ampz) respectively.

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{Hpz}2[H7CrMo6O24]·6H2O和[Co(2- hampz)2Cl4] (pz =吡唑，2-ampz = 2-氨基吡嗪)在水溶液中的自组装

采用溶剂蒸发技术分别用吡唑(pz)和2-氨基吡嗪(2-ampz)制备了两种新的杂化固体{Hpz}2[H7CrMo6O24]·6H2O(1)和[Co(2- hampz)2Cl4](2)。采用单晶x射线衍射、傅里叶变换红外光谱、元素分析、扫描电镜和热分析对固体进行了表征。固体1在空间群为Pbca的正交晶系中结晶，a = 23.1796(8)， b = 11.1281(4)， c = 25.1499(9) Å， Z = 8。固体2在三斜晶系的结晶系统空间组织p - 1, a = 7.1986 (5), b = 7.3917 (5), c = 7.8896(6),α= 115.758(3),β= 110.450(3),γ= 96.904(3)°,Z = 1。固体1是一种新的Anderson-Evans簇基固体，而固体2是一种新的钴配合物[Co(2-ampz)4Cl2]伪多晶。晶体结构分析表明，超分子相互作用促进了固体1和固体2中的晶体堆积。此外，还分析了合成参数在决定固体1和固体2在水介质中自组装性质中的作用。摘要用吡唑(pz)和2-氨基吡嗪(2-ampz)分别合成了基于Anderson-Evans簇基的固体{Hpz}2[H7CrMo6O24]·6H2O(1)和新的钴配合物[Co(2-ampz)4Cl2]伪晶[Co(2-ampz) 2Cl4](2)。

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来源期刊

Journal of Chemical Crystallography 化学-光谱学

CiteScore

1.50

自引率

12.50%

发文量

审稿时长

6.3 months

期刊介绍： Journal of Chemical Crystallography is an international and interdisciplinary publication dedicated to the rapid dissemination of research results in the general areas of crystallography and spectroscopy. Timely research reports detail topics in crystal chemistry and physics and their relation to problems of molecular structure; structural studies of solids, liquids, gases, and solutions involving spectroscopic, spectrometric, X-ray, and electron and neutron diffraction; and theoretical studies.