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首页> 外文期刊>Crystal growth & design >Does Higher-Dimensional Hydrogen Bonding Guarantee a Smaller Thermal Expansion? A Thermal Expansion Study of an Interdigitated 1D and Interpenetrated 3D Hydrogen-Bonded Colored Dimorphic System
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Does Higher-Dimensional Hydrogen Bonding Guarantee a Smaller Thermal Expansion? A Thermal Expansion Study of an Interdigitated 1D and Interpenetrated 3D Hydrogen-Bonded Colored Dimorphic System

机译：高维氢键能保证较小的热膨胀吗？指叉一维和互穿3D氢键结合有色双态系统的热膨胀研究

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摘要

The 1:1:1 complex of benzene-1,3,5-tricarboxylic acid (BTA), 4,4'-methylenebis(2,6-dimethylaniline) (MBDA), and methanol has two polymorphic forms that can be regarded as synthon polymorphs. The hydrogen bond dimensionalities in the crystal structure of the two forms are different, and the forms have their own unique colors. The polymorph, with a three-dimensional hydrogen bond topology (3D form), forms an interpenetrated network and is violet in color, whereas the other polymorph, which is bright yellow in color, forms an interdigitated one-dimensional hydrogen bond topology (1D form). The volumetric expansion of the 3D form is comparable to that of the ID form, but the anisotropy of expansion is found to be significantly higher in the 3D form than in its ID counterpart. A structure property correlation study of the dimorphic complex is presented in the context of their thermal expansion behavior and color.
机译：苯-1,3,5-三羧酸（BTA），4,4'-亚甲基双（2,6-二甲基苯胺）（MBDA）和甲醇的1：1：1配合物具有两种多晶型形式，可以认为是synthon多态性。两种形式的晶体结构中的氢键维数不同，并且形式具有其独特的颜色。具有三维氢键拓扑（3D形式）的多晶型物形成互穿网络并呈紫色，而另一种颜色为亮黄色的多晶型物形成相互交叉的一维氢键拓扑（一维形式） ）。 3D形式的体积膨胀与ID形式的体积膨胀相当，但是发现3D形式的膨胀各向异性显着高于其ID对应物。结合其热膨胀行为和颜色，对双晶复合物的结构性质相关性进行了研究。

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