Single crystals of ammonium 2,4-dinitrophenolate hydrate (ADH) were grown by the slow evaporation solution growth technique. The structure is elucidated by single-crystal X-ray diffraction analysis and the crystal belongs to an orthorhombic system with noncentrosymmetric space groupPna21. The second harmonic generation efficiency of ADH is superior to that of the reference material KH2PO4. The X-ray study reveals that molecules are associated by weak C—H...O, O—H...N, N—H...π and π–π stacking interactions, which are responsible for the formation and strengthening of the supramolecular assembly. Inter- and intramolecular hydrogen-bonding interactions support the supramolecular architecture in the crystal packing. Three different types of architecture,i.e.column-like packing, a sandwich model of packing and a cluster network type of infrastructure, are observed. Optical studies reveal that the absorption is minimum in the visible region and the cutoff wavelength is at ∼240 nm. The band-gap energy was estimated by the application of the Kubelka–Munk algorithm. The powder X-ray diffraction pattern reveals the good crystallinity of the as-grown specimen. Investigation of the intermolecular interactions and crystal packing using Hirshfeld surface analysis, based on single-crystal X-ray diffraction, reveals that the close contacts are associated with molecular interactions. Fingerprint plots of Hirshfeld surfaces were used to locate and analyze the percentage of hydrogen-bonding interactions.
2,4- 二硝基酚酸铵水合物(ADH)的单晶是通过缓慢蒸发溶液生长技术生长出来的。通过单晶 X 射线衍射分析阐明了其结构,该晶体属于非五次对称空间群 Pna21 的正方晶系。ADH 的二次谐波发生效率优于参考材料 KH2PO4。X 射线研究显示,分子之间存在微弱的 C-H...O、O-H...N、N-H...π 和 π-π 堆积相互作用,这些相互作用是形成和加强超分子组装的原因。分子间和分子内的氢键相互作用为晶体堆积中的超分子结构提供了支持。我们观察到了三种不同类型的结构,即柱状堆积、三明治堆积模型和簇状网络结构。光学研究表明,该物质在可见光区域的吸收率最低,截止波长为 ∼240 nm。带隙能量是通过 Kubelka-Munk 算法估算出来的。粉末 X 射线衍射图样显示,生长后的试样具有良好的结晶性。在单晶 X 射线衍射的基础上,利用 Hirshfeld 表面分析法对分子间相互作用和晶体堆积进行了研究,结果表明紧密接触与分子相互作用有关。利用 Hirshfeld 表面指纹图定位和分析氢键相互作用的百分比。