DIFLUOROMETHANE

作品数：5被引量：1H指数：1
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Exploration of vibrationally resolved threshold photoelectron spectrum of difluoromethane within photon energy range of 12.45-14.10 eV
《Chinese Journal of Chemical Physics》2024年第6期754-762,I0041,共10页Xueqi Cui Xinlang Yang Tongpo Yu Xiaoguo Zhou Shilin Liu 
supported by the National Natural Science Foundation of China(Nos.22473104 and 22073088).
Threshold photoelectron spectrum of CH_(2)F_(2)in the photon energy range of 12.45-14.10 eV was re-investigated by means of a combination of photo-electron-photoion coincidence experiments and density functional theor...
关键词：Threshold photoelectron spectroscopy Franck-Condon simulation Vibrational frequency analyses Ionization energy CH_(2)F_(2) 
A safe and efficient process for the preparation of difluoromethane in continuous flow被引量：1
《Chinese Journal of Chemical Engineering》2020年第7期1860-1865,共6页Tao Shen Xin Ge Hengjun Zhao Zhixiong Xu Shaofeng Tong Shaodong Zhou Chao Qian Xinzhi Chen 
financial support from the National Natural Science Foundation of China(21878265,21606104);the National Key Research and Development Program of China(2016YFB0301800)。
Difluoromethane is typically produced vialiquid-phase fluorination as performed in a batch reactor.However,this process suffers from some problems,e.g.,severe corrosion of the reactor,high safety risk,and the regenera...
关键词：Tubular reactor Continuous synthesis DIFLUOROMETHANE CATALYST 
Thermophysical Properties for Environmental-Friendly Refrigerants of Trifluoroiodomethane and Difluoromethane
《Science Foundation in China》2002年第1期32-36,共5页DuanYuanyuan Zhu Mingshan Shi Lin HanLizhong(Department of Thermal Engineering, Tsinghua University, Beijing 100084) 
We investigate thermophysical properties of environmental -friendly refrigerants of trifluo-roiodomethane and difluoromethane in detail. The progress of measurement techniques for thermophysical properties of fluids i...
关键词：TRIFLUOROIODOMETHANE DIFLUOROMETHANE thermophysical PROPERTIES 
Ab Initio Study of the Oxygen Atom Abstracting Hydrogen from Difluoromethane and Dichloromethane
《Chinese Chemical Letters》1998年第9期855-857,共3页Jian Hua ZHOU Jing Zhong GUO Xiao Ping ZHANG Hong Ming YIN Chuan Pu LIU Yue Shu GU(Department of Chemistry, Shandong University, Jinan, 250100) 
The three potential surfaces for reactions of the O atom to abstract H atoms from CH2F2 and CH2Cl2 were studied using the ab initio method. The frequencies, geometries and energies of all species are calculated. The b...
关键词：ab initio study abstracting reaction 
Thermophysical properties of difluoromethane (HFC-32)
《Science China(Technological Sciences)》1998年第4期435-442,共8页史琳 朱明善 韩礼钟 段远源 孙立群 傅屹东 
ProjectsupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .5 9476 0 33)
The research work on thermophysical properties of difluoromethane (HFC-32) is summarized. Experimental data of critical parameters, vapor pressure, PVT, speed of sound, ideal-gas heat capacity, surface tension, viscos...
关键词：DIFLUOROMETHANE HFC-32 THERMODYNAMIC PROPERTIES TRANSPORT PROPERTIES REFRIGERANT alternatives. 
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