Semi-annual report of Schimmel & Co(Fritzsche Brothers) . l system the tricyclic ring claims asimilar, and apparently only slightly larger increment than in othercyclical bodies. From the spectrochemical observations which have beenmade within the past few years it may be stated with certainty that cam-phene cannot be a saturated compound. The examination of seven dif-ferent camphene-preparations has shown the molecular refraction of cam-phene to be larger than that calculated for the formula CioHie/^, and theexaltations to equal EI^ + 0,32 and E2*D + 0,37. This behaviour pointsto the semicycl
Semi-annual report of Schimmel & Co(Fritzsche Brothers) . l system the tricyclic ring claims asimilar, and apparently only slightly larger increment than in othercyclical bodies. From the spectrochemical observations which have beenmade within the past few years it may be stated with certainty that cam-phene cannot be a saturated compound. The examination of seven dif-ferent camphene-preparations has shown the molecular refraction of cam-phene to be larger than that calculated for the formula CioHie/^, and theexaltations to equal EI^ + 0,32 and E2*D + 0,37. This behaviour pointsto the semicyclic structure of camphene, and would appear to affordspectrochemical proof of the corrections of Wagners camphene has been stated above with regard to camphene is also applicableto D-Z-fenchene and to its optical antipode, i-cZ-fenchene. Here, EID =+ 0,33, a fact which can only be explained on the hypothesis of a semi-cyclic double linking. Accordingly, the formula of ZM-fenchene would bethat given by Wallach and almost universally 168
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