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Co(Ⅱ)와 Methylthmol blue사이의 착물형성에 있어 평형상수에 미치는 압력과 온도의 영향
오대섭,최술한,이해운 慶北大學校 物理化學硏究所 1982 硏究論文集 Vol.3 No.-
Co(Ⅱ)와 Methylthymol blue(MTB) 사이의 착물 형성에 있어서 안정도에 미치는 압력과 온도의 영향을 자외선 분광광도법으로 연구 하였다. 사용된 압력은 1 bar에서 1200 bar이며 온도는 20, 30, 40℃ 사이에서 측정하였다. 이때 착물의 평형상수는 압력 및 온도의 증가에 따라 증가함을 알 수 있었으며 흡광계수도 또한 증가함을 알 수 있었다. 이들 각 평형상수로부터 착물 형성에 따른 부피, 엔탈피, 자유에너지 및 엔트로피의 변화량을 구함으로서 이 착물은 흡열반응이며 압력과 온도의 증가에 따라 반응이 더욱 잘 일어남을 알 수 있었다. 그리고 압력의 증가에 따른 흡수 maximum의 red shift 현상 및 압력 변화에 따른 진동자 세기와의 관계를 열역학적 함수와 관계를 지워 설명하였다. The effect of pressures and temperatures on the stabilities of the Co(Ⅱ)-Methylthymol blue complex have been investigated through ultraviolet spectrophotometric measurement. The stabilities of complexes were measured at 20 30 and 40℃ under 1300 600 900 and 1200 bars. The equilibrium constant of the complex was increased with pressure and temperature raising. The absorption coefficient was increased with both pressure and temperature. Change of volume, free energe, entropy and enthalpy for the formation of complexes were obtained from the equilibrium constants. The red shift observed a higher pressure and the relation between pressure and oscillator strength were discussed by means of thermodynamic function.
Co(Ⅲ)와 Methylthymol blue 사이의 착물형성에 있어 평형상수에 미치는 압력과 온도의 영향
吳岱燮,이병교,崔戌漢 경북대학교 과학교육연구소 1982 科學敎育硏究誌 Vol.6 No.-
The effect of pressures and temperatures on the stabilities of the Co(Ⅱ)-Methylthymol blue complex have been investigated through ultraviolet spectrophotometric measurement. The stabilities of complexes were measured at 20 30 and 40℃ under 1 300 600 900 and 1200 bars. The equilibrium constant of the complex was increased with pressure and temperature raising. The absorption coefficient was increased with both pressure and temperature. Change of volume, free energe, entropy and enthalpy for the formation of complexes were obtained from the equilibrium constants. The red shift observed a higher pressure and the relation between pressure and oscillator strength were discussed by means of thermodynamic function.
Co(Ⅲ) 와 Methylthymol blue 사이의 착물형성에 있어 평형상수에 미치는 압력과 온도의 영향
吳岱燮,이병교,崔戌漢 慶北大學校 物理化學硏究所 1984 硏究論文集 Vol.5 No.-
The effect of pressures and temperatures on the stabilities of the Co(Ⅱ)-Methylthymol blue complex have been investigated through ultra-violet spectrophotometric measurement. The stabilities of complexes were measured at 20 30 and 40℃ under 1 300 600 900 and 1200 bars. The equilibrium constant of the complex was increased with pressure and temperature raising. The absorption coefficient was increased with both pressure and temperature. Change of volume, free energe, entropy and enthalpy for the formation of complexes were obtained from the equilibrium constants. The red shift observed a higher pressure and the relation between pressure and oscillator strength were discussed by means of thermodynamic function.