Supramolecular Complexes Built of Octahedral [Ta6Cl12(CN)6]3−/4− Clusters and Terpyridine-Metal Complexes

IF 0.4 4区化学 Q4 CRYSTALLOGRAPHY Journal of Chemical Crystallography Pub Date : 2022-11-09 DOI:10.1007/s10870-022-00969-7

Jian-Jun Zhang, H. Andrew Zhou, Abdessadek Lachgar

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Abstract

The preparation and characterization of two supramolecular complexes from octahedral [Ta₆Cl₁₂(CN)₆]^4−/3− units and 2, 2′: 6′, 2″-terpyridine (Terpy) metal complexes as building blocks are reported. Single crystal analyses revealed [Mn(Terpy)]₂[Ta₆Cl₁₂(CN)₆]·MeOH (1) features a neutral two-dimensional (2D) framework composed of layers based on [Ta₆Cl₁₂(CN)₆]⁴⁻ and [Mn(Terpy)]²⁺. Each layer is built of 6-connected [Ta₆Cl₁₂]²⁺ and 3-connected Mn(II) nodes bridged by cyanide ligands. The layers are held together by MeOH molecules. The layered structure is maintained after the removal of solvent molecule (MeOH) upon heating, leading to the formation of [Mn(Terpy]₂[Ta₆Cl₁₂(CN)₆] (1′). In the case of using Gd³⁺, the resultant product was revealed by single-crystal analyses to be an ionic compound [Gd(Terpy)(H₂O)₄(DMF)₂][Ta₆Cl₁₂(CN)₆]⋅DMF ⋅3H₂O (2). 2 has a three-dimensional (3D) framework built of [Gd(Terpy)(H₂O)₄(DMF)₂]³⁺ and [Ta₆Cl₁₂(CN)₆]³⁻ ions connected to each other via extensive hydrogen bonds and π-π interactions between the cations, anions, and solvent molecules. Thermal stabilities of 1‒2 are reported.

Graphical Abstract

The X-ray structures and thermal stabilities of a coordination polymer [Mn(Terpy)]₂[Ta₆Cl₁₂(CN)₆] ⋅MeOH and an ionic compound [Gd(Terpy)(H₂O)₄(DMF)₂][Ta₆Cl₁₂(CN)₆]⋅DMF⋅3H₂O are presented.

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八面体[Ta6Cl12(CN)6]3−/4−簇的超分子配合物和三吡啶-金属配合物

报道了以八面体[Ta6Cl12(CN)6]4−/3−单元和2,2′:6′，2″-三吡啶(Terpy)金属配合物为构建单元的两种超分子配合物的制备和表征。单晶分析表明，[Mn(Terpy)]2[Ta6Cl12(CN)6]·MeOH(1)具有由[Ta6Cl12(CN)6]4−和[Mn(Terpy)]2+组成的中性二维(2D)框架。每层由6连接的[Ta6Cl12]2+和3连接的Mn(II)节点组成，这些节点由氰化物配体桥接。这些层是由MeOH分子连接在一起的。加热除去溶剂分子(MeOH)后保持层状结构，形成[Mn(Terpy) 2[Ta6Cl12(CN)6](1 ')。在使用Gd3+的情况下，所得产物通过单晶分析显示为离子化合物[Gd(Terpy)(H2O)4(DMF)2][Ta6Cl12(CN)6]⋅DMF⋅3H2O(2). 2具有由[Gd(Terpy)(H2O)4(DMF)2]3+和[Ta6Cl12(CN)6]3−离子通过广泛的氢键和阳离子、阴离子和溶剂分子之间的π-π相互作用相互连接而成的三维(3D)框架。报道了1-2的热稳定性。摘要研究了配位聚合物[Mn(Terpy)]2[Ta6Cl12(CN)6]·MeOH和离子化合物[Gd(Terpy)(H2O)4(DMF)2][Ta6Cl12(CN)6]·DMF·3H2O的x射线结构和热稳定性。

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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.