Co-crystal formation between 2-amino-4,6-dimethylpyrimidine and new p-xylylene-bis(thioacetic) acid

Novel p -xylylene-bis(thioacetic) acid ( p-XBTA ) and its co-crystals with 2-amino-4,6-dimethylpyrimidine (DMP) have been synthesized and characterized by single-crystal X-ray diffraction, infrared spectroscopy and thermal analysis methods (TG/DSC). Depending on the crystallization conditions, three...

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Bibliographic Details
Published in:CrystEngComm 2014-01, Vol.16 (44), p.10262-10272
Main Authors: Ostasz, A., Łyszczek, R., Mazur, L., Tarasiuk, B.
Format: Article
Language:English
Subjects:
Crystallization
Differential scanning calorimetry
Diffraction
Formations
Spectra
Stoichiometry
Thermal analysis
Vibration
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Summary:Novel p -xylylene-bis(thioacetic) acid ( p-XBTA ) and its co-crystals with 2-amino-4,6-dimethylpyrimidine (DMP) have been synthesized and characterized by single-crystal X-ray diffraction, infrared spectroscopy and thermal analysis methods (TG/DSC). Depending on the crystallization conditions, three different multicomponent crystal forms have been isolated with various chemical compositions and stoichiometries of the co-formers. The ATR-FTIR spectra of the co-crystals display the stretching vibration bands for the co-formers with associated shifts confirming the formation of new phases. DSC and TG were used to reveal the relative stabilities of new solids compared to those of the co-formers.
ISSN:1466-8033
1466-8033
DOI:10.1039/C4CE01567C