Syntheses, crystal structures and magnetic properties of two new chromium chalcogenides Cr(en)3SbSe4 and Cr(en)2AsSe3

doi:10.1016/j.jallcom.2018.07.313

	Syntheses, crystal structures and magnetic properties of two new chromium chalcogenides Cr(en)3SbSe4 and Cr(en)2AsSe3
	Sishun Wang1,2 ; Yingqi Wang 3; Jianqiao He 1; Dong Wang 1; Kejun Bu 1; Xian Zhang 3; Chong Zheng 4; Haijie Chen 1; Fuqiang Huang1,2,3
	2018-07-29
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS (IF:5.8[JCR-2023],5.3[5-Year])
ISSN	0925-8388
卷号	768 页码:‏ 970-977
发表状态	已发表
DOI	10.1016/j.jallcom.2018.07.313
摘要	We report two new chromium chalcogenides Cr(en)₃SbSe₄ and Cr(en)₂AsSe₃ which were obtained by solvothermal reactions at 170 ºC. Cr(en)₃SbSe₄ adopts the tetragonal space group P4₂bc with isolated [Cr(en)₃]³⁺ ions and [SbSe₄]^3- tetrahedrons. Cr(en)₂AsSe₃ is a molecular crystal with the monoclinic space group P2₁/n. It has [Cr(en)₂Se₂]^- octahedrons and [AsSe₃]^_3- triangle cones which are edge shared by Se atoms. Cr(en)₃SbSe₄ has a band gap of 2.3 eV, whereas Cr(en)₂AsSe₃ displays multiple-absorption characters with two absorption edges at 1.7 and 2.2 eV, respectively. Remarkably, Cr(en)₃SbSe₄ is a CurieWeiss paramagnet between 2 and 300 K with an effective magnetic moment of 3.98 µ_B, and is a potential magneto-caloric material with -DS_m = 16.3 J (kg K)^-1 at 4 K and DH = 8 T. Cr(en)₂AsSe₃ shows antiferromagnetism below 9 K.
关键词	Chromium chalcogenides Magnetocaloric effect Isolated structure Intermediate band Antiferromagnetism
学科门类	工学 ; 工学::材料科学与工程（可授工学、理学学位） ; 工学::化学工程与技术
URL	查看原文
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Key Research Program of Frontier Sciences of the CAS[QYZDJ-SSW-JSC013]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000446320700114
出版者	ELSEVIER SCIENCE SA
EI入藏号	20183205653244
EI主题词	Antiferromagnetism ; Chromium ; Energy gap ; Magnetic moments ; Magnetocaloric effects ; Molecular crystals
EI分类号	Chromium and Alloys:543.1 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Inorganic Compounds:804.2 ; Crystalline Solids:933.1
WOS关键词	MAGNETOCALORIC PROPERTIES ; SOLVOTHERMAL SYNTHESIS ; METAL-CLUSTERS ; REFRIGERANTS ; RELAXATION ; CR ; FE ; CO ; ETHYLENEDIAMINE ; SUBSTITUTION
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/124276
专题	物质科学与技术学院_博士生物质科学与技术学院_特聘教授组_黄富强组
通讯作者	Chong Zheng; Haijie Chen; Fuqiang Huang
作者单位	1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China 2.School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, PR China 3.State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, PR China 4.Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, USA
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Sishun Wang,Yingqi Wang,Jianqiao He,et al. Syntheses, crystal structures and magnetic properties of two new chromium chalcogenides Cr(en)3SbSe4 and Cr(en)2AsSe3[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,768:‏ 970-977.
APA	Sishun Wang.,Yingqi Wang.,Jianqiao He.,Dong Wang.,Kejun Bu.,...&Fuqiang Huang.(2018).Syntheses, crystal structures and magnetic properties of two new chromium chalcogenides Cr(en)3SbSe4 and Cr(en)2AsSe3.JOURNAL OF ALLOYS AND COMPOUNDS,768,‏ 970-977.
MLA	Sishun Wang,et al."Syntheses, crystal structures and magnetic properties of two new chromium chalcogenides Cr(en)3SbSe4 and Cr(en)2AsSe3".JOURNAL OF ALLOYS AND COMPOUNDS 768(2018):‏ 970-977.