Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 7048-04-6, Name is H-Cys-OH.HCl.H2O, molecular formula is C3H10ClNO3S. In an article, author is Zhang, Changde,once mentioned of 7048-04-6, Quality Control of H-Cys-OH.HCl.H2O.
Halogen-halogen contacts are electrostatic in nature and exhibit directionality similar to hydrogen bonds. Oxyclozanide [systematic name: 2,3,5-trichloro-N-(3,5-dichloro-2-hydroxyphenyl)-6-hydroxybenzamide] is a drug used for the treatment of fascioliasis in domestic animals. The molecule carries five chlorine substituents and represents an ideal candidate for the study of halogen bonds in the crystal. Three new crystalline solvates of oxyclozanide, namely, oxyclozanide benzene hemisolvate, C13H6Cl5NO3 center dot 0.5C(6)H(6), (I), oxyclozanide xylene hemisolvate, C13H6Cl5NO3 center dot 0.5C(8)H(10), (II), and oxyclozanide toluene hemisolvate, C13H6Cl5NO3 center dot 0.5C(7)H(8), (III), were structurally characterized. In this context, the crystal structure of oxyclozanide chlorobenzene hemisolvate, C13H6Cl5NO3 center dot-0.5C(6)H(5)Cl, (IV), was redetermined based on intensity data collected at 100 K. In all four solvates, the cocrystallized solvent molecules are located on crystallographic inversion centres. Solvates (I)-(IV) exhibit similar one-dimensional hydrogen-bonded chains generated by O-H center dot center dot center dot O, O-H center dot center dot center dot Cl and Cl center dot center dot center dot Cl interactions. The extension of these one-dimensional chains into two-dimensional layers is promoted by Cl center dot center dot center dot Cl and C-H center dot center dot center dot pi contacts. Solvates (III) and (IV) are isostructural and differ from (I) and (II) with respect to subtle details concerning the intermolecular contacts.
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Reference:
Amide – Wikipedia,
,Amide – an overview | ScienceDirect Topics