Physicochemical properties of crystalline forms of ethynylestradiol solvates: Comparison of thermal behavior with X-ray crystal structure
β Scribed by Toshimasa Ishida; Mitsunobu Doi; Mari Shimamoto; Naoko Minamino; Katsumi Nonaka; Masatoshi Inoue
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 643 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0022-3549
No coin nor oath required. For personal study only.
β¦ Synopsis
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 were further analyzed using the X-ray diffraction method, and the results are discussed in comparison
π SIMILAR VOLUMES
The crystal structure of carnidazole form II, O-methyl [2-(2-methyl-5-nitro-1H-imidazole-1-yl)ethyl]thiocarbamate, has been determined using synchrotron X-ray powder diffraction in combination with simulated annealing and whole profile pattern matching, and refined by the Rietveld method. For struct
Single crystals of the N,N,N',Wtetramethylethylenediamine (TMEDA) complex 6 of the title compound have been isolated. Compound 6 decomposes in the crystalline state above -20'. From the bond lengths and angles obtained by X-ray crystal-structure analysis (data collected at -707, compound 6 is best d
The present study was conducted to compare the structure and properties of conventional and so-called "high-crystallinity" (hcr) polypropylene (PP) and to establish characteristic features of the latter that are responsible for its superior thermal and mechanical performance. Moreover, structure-pro