title: Single-Chain Magnets Based on Octacyanotungstate with the Highest Energy Barriers for Cyanide Compounds.
abstract: By introducing large counter cations as the spacer, two isolated 3, 3-ladder compounds, (Ph4P)[Co(II)(3-Mepy)2.7(H2O)0.3W(V)(CN)8] · 0.6H2O (1) and (Ph4As)[Co(II)(3-Mepy)3W(V)(CN)8] (2, 3-Mepy = 3-methylpyridine), were synthesized and characterized. Static and dynamic magnetic characterizations reveal that compounds 1 and 2 both behave as the single-chain magnets (SCMs) with very high energy barriers: 252(9) K for 1 and 224(7) K for 2, respectively. These two compounds display the highest relaxation barriers for cyano-bridged SCMs and are preceded only by two cobalt(II)-radical compounds among all SCMs. Meanwhile, a large coercive field of 26.2 kOe (1) and 22.6 kOe (2) were observed at 1.8 K.
authors.affiliation: State Key Laboratory of Coordinate Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.|Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong, School of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, China.
authors.forename: Rong-Min
authors.initials: RM
authors.lastname: Wei
authors.affiliation: State Key Laboratory of Coordinate Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Cao
authors.affiliation: State Key Laboratory of Coordinate Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.affiliation: State Key Laboratory of Coordinate Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Li
authors.initials: L
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Coordinate Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Han
authors.affiliation: Key Laboratory of Coordination Chemistry and Functional Materials in Universities of Shandong, School of Chemistry and Chemical Engineering, Dezhou University, Dezhou 253023, China.
authors.forename: Xiu-Ling
authors.initials: XL
authors.lastname: Zhang
authors.affiliation: Jiangsu Key Laboratory for the Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China.
authors.forename: Zaichao
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Coordinate Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: Xin-Yi
authors.initials: XY
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Coordinate Chemistry, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
authors.forename: You
authors.initials: Y
authors.lastname: Song