γ-Cu_(2)(OH)_(3)Cl的常压及高压拉曼光谱研究  

The Raman Spectroscopy Study of γ-Cu_(2)(OH)_(3) Cl under Atmospheric and High Pressure

作　　者：罗亚肖 张剑[1] 李艳伟[2] LUO Yaxiao;ZHANG Jian;LI Yanwei(State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;Department of General Practice and Family Medicine, The Second Hospital of Jilin University, Changchun 130041, China)

机构地区：[1]吉林大学,超硬材料国家重点实验室,长春130012 [2]吉林大学第二医院,全科医学科,长春130041

出　　处：《光散射学报》2022年第1期10-14,共5页The Journal of Light Scattering

基　　金：国家自然科学基金项目(11874028)。

摘　　要：γ-Cu_(2)(OH)_(3)Cl是羟基氯化铜的同分异构体之一,在自然界中广泛存在。不仅可以用作生物铜营养添加剂,还具有非常奇异的磁性质。本研究利用水热合成法,制备出羟基氯化铜晶体clinoatacamite(斜氯铜矿,γ-Cu_(2)(OH)_(3)Cl)。首先在常压下进行了拉曼光谱测试,将频率分为低频区和中频区,对波段内的谱带进行了详细的归因和划分。又进行了原位高压拉曼散射光谱测试,最高压力达到了17.8 GPa,研究了γ-Cu_(2)(OH)_(3)Cl在高压下的晶格振动和晶体结构演化行为。研究了拉曼振动模式随压力变化的现象,对拉曼频谱图中的红移现象进行了分析和解释。本研究可以为含铜营养素的光谱学标定和指认提供基础理论和数据。γ-Cu_(2)(OH)_(3)Cl is one of the isomers of copper hydroxychloride,which exists widely in nature.It can not only be used as biological copper nutrient additives,but also has exotic magnetic properties.Clinoatacamite(γ-Cu_(2)(OH)_(3)Cl)was prepared via a hydrothermal synthesis strategy.The Raman scattering spectroscopy test was first carried out under atmospheric pressure,and the frequencies were divided into low frequency region and medium frequency region,respectively.The spectral bands were attributable and divided in detail.The lattice vibrations and crystal structure evolution behavior ofγ-Cu_(2)(OH)_(3)Cl under high pressure were studied by using in-situ high-pressure Raman scattering spectroscopy technique,and the maximum pressure reached 17.8 GPa.The changes of Raman vibration modes with pressure were studied,and the red shift phenomenon is analyzed and explained.The results of this study may provide fundamental spectroscopic theory and basic data in the calibration of copper nutrient additives.

关 键 词：羟基氯化铜 斜氯铜矿 营养添加剂 拉曼光谱 高压 

分 类 号：O521[理学—高压高温物理]