Temperature effect on vibrational properties of crystalline Dibenz[a,h] anthracene

doi:10.1016/j.saa.2022.121107

	Temperature effect on vibrational properties of crystalline Dibenz[a,h] anthracene
	Zhao, Xiao-Miao 1,4; Wei, Yong-Kai 5; Zhang, Kai 2,6; Zhao, Zhi-Wei 1,4; Wang, Shun 1; Miao, Wei 1; Du, Su-Xuan 1; Zhang, Shi-Jie 1; Li, Wen-Feng 1; Guan, Chun-Long 1
刊名	SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
	2022-06-05
卷号	274
关键词	Dibenz[a,h]anthracene Raman spectroscopy Vibrational properties Low temperature
ISSN号	1386-1425
DOI	10.1016/j.saa.2022.121107
通讯作者	Zhao, Xiao-Miao(zhaoxiaomiao88@163.com) ; Zhao, Zhi-Wei(zhiwei_zhao@haut.edu.cn)
英文摘要	Vibrational properties associated with the intra-and intermolecular bonding of the crystalline Dibenz[a, h]anthracene at low temperatures are investigated by Raman scattering. A complete characterization of phonon spectra is given for this material. In the 120-150 K temperature region, several lattice modes show abrupt changes of splitting and the discontinuities in the temperature shift, but no emergence of new modes. Moreover, the intensity ratio of I68/38 is greater than 1 below 130 K. Meanwhile, the aromatic C-C stretching modes exhibit anomalous behaviors in frequencies, widths, and intensities at about 130 K. These spectroscopic results demonstrate a disorder-order transition occurred at about 130 K. However, the modes, corresponding to C-H out-of-plane bending, C-H in-plane bending, and/or C-H rocking, have no significant change in the whole temperature range. It indicates that the transition mainly results from the change of the tilt angle between the molecules. Our work is of great significance to understand the internal vibrational properties of Dibenz[a,h]anthracene, and it also provides considerable supports for the further study of this material. (c) 2022 Elsevier B.V. All rights reserved.
资助项目	Key Scientific and Techno-logical Research Projects in Henan Province[212102210114] ; Key Scientific and Techno-logical Research Projects in Henan Province[202102210217] ; Doctoral Fund of Henan University of Technology[2018BS004] ; Fundamental Research Funds for the Henan Provincial Colleges and University of Technology[2018QNJH29] ; Cultivation Programme for Young Backbone Teachers in Henan University of Technology ; science foundation of national key laboratory of science and technology on advanced composites in special environments[6142905203114]
WOS关键词	RAMAN ; SUPERCONDUCTIVITY ; TRANSITION ; HYDRIDE ; SPECTRA
WOS研究方向	Spectroscopy
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000790141500016
资助机构	Key Scientific and Techno-logical Research Projects in Henan Province ; Doctoral Fund of Henan University of Technology ; Fundamental Research Funds for the Henan Provincial Colleges and University of Technology ; Cultivation Programme for Young Backbone Teachers in Henan University of Technology ; science foundation of national key laboratory of science and technology on advanced composites in special environments
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/130777]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhao, Xiao-Miao; Zhao, Zhi-Wei
作者单位	1.Henan Univ Technol, Coll Mat Sci & Engn, Zhengzhou 450001, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 3.Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150001, Peoples R China 4.Henan Prov Engn Res Ctr New Cermet Matrix Composit, Zhengzhou 450001, Peoples R China 5.Henan Univ Technol, Coll Sci, Zhengzhou 450001, Peoples R China 6.Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xiao-Miao,Wei, Yong-Kai,Zhang, Kai,et al. Temperature effect on vibrational properties of crystalline Dibenz[a,h] anthracene[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2022,274.
APA	Zhao, Xiao-Miao.,Wei, Yong-Kai.,Zhang, Kai.,Zhao, Zhi-Wei.,Wang, Shun.,...&Xu, San-Kui.(2022).Temperature effect on vibrational properties of crystalline Dibenz[a,h] anthracene.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,274.
MLA	Zhao, Xiao-Miao,et al."Temperature effect on vibrational properties of crystalline Dibenz[a,h] anthracene".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 274(2022).