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Theophylline 鹽酸鹽의 結晶構造

Title
Theophylline 鹽酸鹽의 結晶構造
Other Titles
THE CRYSTAL STRUCTURE OF THEOPHYLLINE HYDROCHLORIDE
Authors
오선숙
Issue Date
1973
Department/Major
대학원 약학과
Publisher
이화여자대학교 대학원
Degree
Master
Advisors
구정회
Abstract
The crystal structure of theophylline Hydrochleride, C_(7) H_(9) O_(2) Cl, has been determined by w-Ray diffraction methods. The crystals are orthorhombic, Sapce group Pna2, with a=14.30, a= 11.82, c=6.77Å and 4 molecules per unit cell. X-ray intensity data. was obtained from Weissemberg moving film photographs for six layers of the c-axis. The approximate structore was derived by means of Patterson synthesis, and refinement of aotmic coordinates were achieved by successiue three dimensional Fourier synthesis. The theophylline ring is planar. Hydrogen bonds linking a theophylline molecule to chlorine atoms and short Van der Waals contacts with other theophylline molecules, lie approximately in the plane of the morecule.
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일반대학원 > 생명·약학부 > Theses_Master
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