摘要
测定硫脲分子N-C=S伸缩振动模式(ν_(N-C=S))的红外光谱(IR)。研究发现:在1500 cm-1~1430 cm-1、1450 cm-1~1350 cm-1和1120 cm-1~1050 cm-1的频率范围内,硫脲分子ν_(N-C=S)分子中分别存在着3个特征谱带,分别归属于ν_(N-C=S)(Ⅰ)-1、ν_(N-C=S)(Ⅱ)和ν_(N-C=S)(Ⅲ)。最后采用二维红外光谱技术(2D-IR)进一步来研究温度变化对于硫脲ν_(N-C=S)红外吸收强度及其变化顺序的影响。本项研究拓展了二维红外光谱技术在ν_(N-C=S)的研究范围。
The thioureas N-C= S stretching vibration modes(VN-C=S) were studied by infrared spectroscopy (IR). The key frequency bands were discovered in the band regions of 1500 cm-1-1430 cm-1 (VN-C=S(Ⅰ)-1). 1450 cm-1-1350 cm-1 (VN-C=S(Ⅱ)) and 1120 cm-1-1050 cm-1 (VN-C=S(Ⅲ)). The temperature effect on VN-C=S intensity and change order were discussed also. The study demonstrated the key roles of two-dimensional infrared spectroscopy (2D-IR) in the analysis of thermal characters of VN-C=S.
作者
李莉
王震洲
师鹏
刘子玮
宋亚环
于宏伟
LI Li WANG Zhenzhou SHI Peng LIU Ziwei SONG Yahuan YU Hongwei(Physical and Electrical Information Engineering Institute Shijiazhuang College, Shijiazhuang 050035, China Information Science and Engineering Institute Hebei University of Science and Technology, Shijiazhuang 050018, China Hebei Vocational and Technical College Track Transportation, Shijiazhuang 050000, China School of Chemical Engineering Shijiazhuang College, Shifiazhuang 050035, China)
出处
《红外技术》
CSCD
北大核心
2017年第1期95-102,共8页
Infrared Technology
基金
河北省科技厅项目(15210340)
石家庄市科技基金项目(141131231A)
河北省高等学校科学技术研究项目(ZD2016201)
关键词
硫脲
红外光谱
二维红外光谱
thiourea, infrared spectroscopy, two-dimensional infrared spectroscopy