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Abstract
This paper is a continuing investigation concerning optimization of the chromatography of hexabenzylgermanium derivatives. Optimal conditions of chromatographic separation and determination for hexabenzyldigermoxane and hexabenzyldigermanium have been elaborated, utilizing interactions of π‐π type between stationary phase and analyzed compound. Because of partial retention of these compounds on a chromatographic column, numerous problems with their determination can appear. During the investigation three aryl stationary phases and various mobile phases were taken into consideration. Obtained results showed, unanimously, that the best selectivity exhibited a column containing porous graphitizing coal. The highest separation factor, 1.73, has been obtained using this column and a mobile phase consisting of aqueous acetonitrile. A slightly lower separation factor has been obtained with the use of aryl stationary phase RP Si–NAF. All obtained results showed a dominating influence of interactions π‐π in the investigated chromatography process.