X-ray structural studies and physicochemical properties of cimetidine polymorphism
β Scribed by Megumi Shibata; Hiromasa Kokubo; Kazuhiro Morimoto; Katsuaki Morisaka; Toshimasa Ishida; Masatoshi Inoue
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 773 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0022-3549
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The structure of poly(octylthiophene)s and alternating octylthiopheneβthiopheneβcopolymers with a varying degree of intrachain regularity was studied by means of Xβray diffraction and optical absorption measurements. Although these polymers show a varying degree of crystallinity, eviden
Four crystalline forms of ethynylestradiol solvates were obtained from three solvents [acetonitrile (Form A), methanol (Form B), and chloroform saturated with water (Forms C and D)], and were characterized by X-ray powder patterns and thermal analyses. The crystal structures of Forms A, B, and C wer
Ar = p-tolyl or phenyl), have been C-acylated by acetic anhydride to obtain new types of phosphorus ylides. Synthesis and characterization of six phosphorus ylides of the type Ar 3 PC(COCH 3 )(COR) are reported. The reaction of {(p-tolyl) and {Ph 3 PCHCOOCH 2 C 6 H 5 } (VI) with acetic anhydride in