The Development And Present Aspects of Stereo-Chemistry
The Development And Present Aspects of Stereo-Chemistry
Charlotte F Charlotte Fitch Roberts
The book The Development And Present Aspects of Stereo-Chemistry was written by author Charlotte F Charlotte Fitch Roberts Here you can read free online of The Development And Present Aspects of Stereo-Chemistry book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Development And Present Aspects of Stereo-Chemistry a good or bad book?
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-2. 5 Preundler found, in general, that oxygenated solvents made little or no change in the amount of rotatory power, while the halogen compounds lower it much, even to changing of sign, as shown in the above results. If the optical activity is to be ascribed, as has been supposed, to molecular structure, it is evident that different solvents, none of which exert any action on the molecule, should not alter the activity of the substance. It has been suggested, however, that the variations in th...ese cases may be due either to polymerization or to combination of the solvent with the active body. Freundler concludes, as Compt. Rend. 117, 556. VARIATIONS IN OPTICAL ACTIVITY. 141 the result of his researches, that normal values of deviation are obtained if the molecular weight remains unchanged, and that abnormal values are obtained only with solvents which act upon the dissolved ethers j therefore, his investigations really cast no doubt upon the constancy of the property in an unaltered active compound.
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