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Although screening for organic polymorphs has become a hot topic in recent years, polymorph screens continue to be largely based on solution crystallization. Other routes to different crystal forms, such as grinding, annealing, and melt crystallization can also be used to look for polymorphs when chemical stability allows. Thermal analysis is often the first method for identifying polymorphic transitions...
Two alkylammonium bromoindate(III) crystals: [(CH 3 ) 4 N]InBr 4 and [(C 2 H 5 ) 4 N]InBr 4 have been studied by differential scanning calorimetry, thermal expansion, dielectric, IR and X-ray diffraction methods. In the tetramethylammonium analogue three thermal anomalies have been detected at 219, 255 and 332K indicating complex sequence of...
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