Zur Kenntnis des α‐Dextrins von F. Schardinger

Ulmann, M.; Trogus, Carl; Heß, Kurt

doi:10.1002/cber.19320650436

Cited by 11 publications

(2 citation statements)

References 5 publications

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“…A similar observation has been reported by Ulmann et a/. 7 several crystalline modifications of the adextrin-ethyl alcohol complex which are reproducibly convertible each other.…”

Section: ' 21supporting

confidence: 88%

Complexes of Starchy Materials with Organic Compounds

Takeo

Kuge

1970

Agricultural and Biological Chemistry

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X-Ray diffraction analysis of the a-cyclodextrin complexes with a number of organic guest molecules were carried out. Several different kinds of the X-ray diffraction patterns were obtained. It was found that different guest molecules enclosed within the void of the dextrin cause large changes in the diffraction patterns of the complexes. However, most of the diffraction patterns could be reasonably interpreted in terms of the hexagonal unit cells with minor differences in the unit cell dimensions ranging a=b=27.0~27.8 A and c= 14.7 ~ 16.7 A. The crystal structure of the complexes could be accounted for by a closest packing of channel cylinders that are made by coaxial alignments of the dextrin molecules and the cage structure in the crystal, in which the dextrin molecules align non-coaxially, may not be plausible.

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“…A similar observation has been reported by Ulmann et a/. 7 several crystalline modifications of the adextrin-ethyl alcohol complex which are reproducibly convertible each other.…”

Section: ' 21supporting

confidence: 88%

Complexes of Starchy Materials with Organic Compounds

Takeo

Kuge

1970

Agricultural and Biological Chemistry

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“…The first patent was filed in 1925 by the German Fritz Lange for IG Farbenindustrie . In the early 1930s, the German groups of Max Ulmann − in the Kaiser Wilhelm Institute für Chemie in Berlin and of Arthur Miekeley , of the Kaiser Wilhelm Institute für Lederforschung in Dresden confirmed the work of Schardinger on α-dextrin. Ulmann was also investigating the modification of the dextrins and observed that the α-dextrin ethanol complex had two different crystal modifications, which could be interconverted .…”

Section: The Period Of Doubt: 1911–1935mentioning

confidence: 95%