南方科技大学知识苑(SUSTech KC): Exploring a prototype for cooperative structural phase transition in cobalt(<sc>ii</sc>) spin crossover compounds

题名	Exploring a prototype for cooperative structural phase transition in cobalt(ii) spin crossover compounds
作者	Deng, Yi-Fei; Wang, Yi-Nuo; Zhao, Xin-Hua; Zhang, Yuan-Zhu
通讯作者	Zhang, Yuan-Zhu
发表日期	2023-11-01
DOI	10.1039/d3dt03529h
发表期刊	DALTON TRANSACTIONS 影响因子和分区
ISSN	1477-9226
EISSN	1477-9234
摘要	The creation of magnetically switchable materials that concurrently incorporate spin crossover (SCO) and a structural phase transition (SPT) presents a significant challenge in materials science. In this study, we prepared four structurally related cobalt(II)-based SCO compounds: two one-dimensional (1D) chains of {[(enbzp)Co(mu-L)](ClO4)(2)sol}(n) (L = bpee, sol = 2MeOHH2O, 1; L = bpea, sol = none, 2; enbzp = N,N '-(ethane-1,2-diyl)bis(1-phenyl-1-(pyridin-2-yl)methanimine); bpee = 1,2-bis(4-pyridyl)ethylene; and bpea = 1,2-bis(4-pyridyl)ethane) and their discrete segments, [{(enbzp)Co}(2)(mu-L)](ClO4)(4)2MeOH (L = bpee, 3; L = bpea, 4). In all of these complexes, each Co(II) center is equatorially chelated by the planar tetradentate ligand enbzp and connected to a chain or dinuclear structure through bpee or bpea ligands along its axial direction. All of the complexes, including their desolvated phases, displayed overall incomplete and gradual SCO properties. Interestingly, the desolvated phase of 1 exhibited an additional non-spin magnetic transition characterized by wide room-temperature hysteresis (>40 K), which was reversible and rate-dependent, showcasing the synergy between SCO and SPT manifested through slow kinetics. We discuss the possible reasons for the distinct features and our findings demonstrate that the combination of a rigid polymeric framework with flexible substituents holds promise for achieving synergy between SCO and SPT.
相关链接	[来源记录]
收录类别	SCI
语种	英语
学校署名	第一 ; 通讯
资助项目	National Natural Science Foundation of China[22173043] ; Shenzhen Science and Technology Program[JCYJ20220818100417037] ; Guangdong Basic and Applied Basic Research Foundation[2022A1515011818]
WOS研究方向	Chemistry
WOS类目	Chemistry, Inorganic & Nuclear
WOS记录号	WOS:001122394700001
出版者	ROYAL SOC CHEMISTRY
ESI学科分类	CHEMISTRY
来源库	Web of Science
引用统计	被引频次[WOS]：2
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/638866
专题	理学院_化学系
作者单位	Southern Univ Sci & Technol SUSTech, Dept Chem, Shenzhen 518055, Peoples R China
第一作者单位	化学系
通讯作者单位	化学系
第一作者的第一单位	化学系
推荐引用方式 GB/T 7714	Deng, Yi-Fei,Wang, Yi-Nuo,Zhao, Xin-Hua,et al. Exploring a prototype for cooperative structural phase transition in cobalt(ii) spin crossover compounds[J]. DALTON TRANSACTIONS,2023.
APA	Deng, Yi-Fei,Wang, Yi-Nuo,Zhao, Xin-Hua,&Zhang, Yuan-Zhu.(2023).Exploring a prototype for cooperative structural phase transition in cobalt(ii) spin crossover compounds.DALTON TRANSACTIONS.
MLA	Deng, Yi-Fei,et al."Exploring a prototype for cooperative structural phase transition in cobalt(ii) spin crossover compounds".DALTON TRANSACTIONS (2023).