K₂CuCl ₄.2H₂O결정내의 교환상호작용 연구 : 열팽창 효과와 적외선 흡광분석에 의한 방법

다국어 초록 (Multilingual Abstract)

The thermal expansion effect to the exchange interaction is calculated using a Morse potential between CuCl₂·2H₂O dimmers in K₂CU₄·2H₂O single crystal. The calculated variation in the exchange interaction between 77K and 300K is only 4% as compared with the results of 2Cu²+ EPR experiments.
Infrared absorption spectrum has been obtained by employing a Nicholet FT-IR sepctrometer at 300K. The stretching and bending vibrations of the ligand atoms are oberved: the symmetric stretching vibration at 3200 cm-¹ and the scissoring at 1600 cm-¹from P-H bond ; and the symmetric strectching vibration at 580 cm-¹from Cu-Cl(Ⅱ). THe displacement between Cu²+ionns is slightly increased with increasing temperature dependent. A variety of vibrations can cause the weakness of the overlap of the wave functions through the ligand atoms between Cu²+ ions.
Therefore there is a temperature-dependent spin transfer to the ligand from Cu²+ ions in this crystal.

목차 (Table of Contents)

• 제1절 서 론
• 제2절 열팽창 효과
• 제3절 적오선 흡광 분석
• 제4절 논 의
• 제5절 결 론
• 참 고 문 헌