Bulletin of the Agricultural Chemical Society of Japan
Online ISSN : 1881-1272
Print ISSN : 0375-8397
ISSN-L : 0375-8397
Molecular Complexes of Tetracycline Acid Salts
Part I. The Preparations and Properties of Tetracyclinium Salt-Oxalic Acid Complexes
Hiroshi OGAWAShigeharu INOUYE
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1960 Volume 24 Issue 7 Pages 657-666


A series of studies on the crystalline molecular complexes of tetracycline groups have been carried out in this laboratory, and the present paper deals with the compositions of the oxalic acid complexes of various tetracycline acid salts, which were examined by X-ray powder diffraction methods, infrared spectra, and chemical analyses. Insertions of salt anions and crystal water in the crystal lattice of the complexes, and the important role of the latter for crystallization are indicated.

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