Studies on the nature of the racemic modifications of optically active compounds in the solid state
Tóm tắt
1. Roozeboom’s melting point-composition diagrams have been prepared for the camphor-β-sulphonates (d anddl) ofo-,m- andp-chloraniline and camphor-β-sulphonyl-o-,m- andp-chlorophenylamides (d anddl). Three curves were obtained in each case which showed that they were truedl compounds. 2. A freezing-point equation has been developed. The above mentioned Roozeboom curves have been discussed in relation to the ideal case as given by this equation. It is found that the systems represented by these curves are complicated as their behaviour is not sufficiently understood. 3. The stability of these compounds has been discussed with the aid of Roozeboom’s melting-point diagrams. 4. The existence of racemates in solid, liquid and gaseous states has been discussed.
Tài liệu tham khảo
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