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Infrared Study of Chlorophyllins in Alkali‐Halide Disks
Author(s) -
Kaufherr N.,
Yariv S.
Publication year - 1970
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.197000006
Subject(s) - chemistry , chlorophyllin , halide , alkali metal , impurity , salt (chemistry) , infrared spectroscopy , inorganic chemistry , halogen , infrared , organic chemistry , chlorophyll , alkyl , physics , optics
Commercial K chlorophyllin from three different manufacturers was studied by IR spectroscopy. All samples contained some keto form of chlorophyllin. Chemical analysis showed that they also contain impurities of carboxylic acid salt. The hydration and coordination of the keto and the carboxyl groups was investigated by comparing the spectra obtained in disks of different alkali‐halides. The spectra of the insoluble chlorophyllin salts of Mg, Al, Co and Cu were also studied.