writer：Chen-Guang Zhang,Yuan Li, Yang-Hui Luo, Baiwang Sun*
keywords：THAM salts, Crystal structure,Thermoanalysis, Hirshfeld surface analysis
source：期刊
specific source：J Chem Crystallogr
Issue time：2013年
The crystals of two organic salts of tris(hydroxymethyl)aminomethane (THAM) with p-hy-droxybenzoic 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 ?ngerprint 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.