Abstract
The crystals of two organic salts of tris(hydroxymethyl)aminomethane (THAM) with p-hydroxybenzoic acid (PHBA) and salicylic acid (SA) were obtained. Their crystal structures were characterized by single-crystal X-ray diffraction, IR spectra, differential scanning calorimetry, thermogravimetric analyses and hot stage microscopy. Wherein, 1 forms a 1:1 (THAM:PHBA) salt, and 2 forms a 2:2:1 (THAM:SA:H2O) salt. The structure determination shows that the two salts are all primarily stabilized by strong O···H hydrogen bonds interaction between THAM and the two acids. The Hirshfeld surfaces and fingerprint plots of the reported salts were prepared and analyzed and reveal that the structures are stabilized by O···H, H···H, C···H, O···O and O···C intermolecular interactions.
Graphical Abstract
The paper is about synthesis, crystal structure, thermal and Hirshfeld surfaces analysis of two THAM salts.
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Acknowledgments
This work has been supported by the prospective joint research project of Jiangsu province (BY2012193), Fundamental Research Funds for the Central Universities (CXZZ12 _0119), Natural Science Foundation of China (21371031) and Funds for the Ministry of Science and Technology (212401025).
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Zhang, CG., Li, Y., Luo, YH. et al. Two Novel Salts of Tris(hydroxymethyl)aminomethane (THAM): Synthesis, Crystal Structure, Thermal and Hirshfeld Surfaces Analysis. J Chem Crystallogr 43, 576–584 (2013). https://doi.org/10.1007/s10870-013-0463-5
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DOI: https://doi.org/10.1007/s10870-013-0463-5