Thiocyanato ammine계 Chromium complex salts에 있어 thiocyanato기의 수가 Rf치에 미치는 영향

• 영문명: The effect on the Rf value by the number of thiocyanate radical in various thiocyanate ammine chromium complex salts
• 발행기관: 대한약학회
• 저자명: 최종인(Chong Ihn Choi)
• 간행물 정보: 『약학회지』제10권 제4호 (1966), 1~6쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1966.12.31

영문 초록

Various thiocyanatoammine chromium complex salts are prepared by the known methods and the Rf. value of these complex salts are determined by four developers. These four developers were used in the paper chrmatographical work of cobalt complex salts by Yamamoto in 1954. It was also found that the developer A (CH3OH, acetone, NH4OH) gave best results of these four developers and the decending development gave better results than ascending development in this experiment. In the case of decending development using developer A, it is found that the Rf. value is increased with the number of thiocyanate radical. The reason of this curious results can be explained that the thiocyanate radical in the complex ion is more active for the organic solvent than ammine radical. Shifting of electrons to the central metal and the charge of the complex ion can also effect to the Rf. value but much questions are remained for the explanation of the above curious phenomenon. Separation of mixed sample is also studied for various mixture of the above complex salts. In the case of the mixture of hexammine and diammine complex salt, the clear separation is possible but in almost all other mixed sample, the results are not clear. Therefore it can be said that the results of this work can be used in the qualitative analysis of the individual complex salts, except the mixed sample of hexammine and diammine complex salts.