B. Ying
2003
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Journal
Journal of East China University of Science and Technology
Abstract
Single crystal of spectinomycin dihydrochloride was cultivated by natural cooling method according to its characteristic of solubility. It is demonstrated by Xray diffraction that the crystal obtained whether by cooling or by dilution belongs to orthorhombic crystal system, P212121 space group. The molecule exists as the ketone hydrate, not in the carbonyl form. The hydrogen bonds formed along axis b are stronger than those along c and a. This is the possible reason why crystal of spectinomycin dihydrochloride pentahydrate grows more rapidly along the b direction, resulting in stick shape.