Self-assembly of Ni(II) metallacycles (a square and a triangle) supported by tetrazine radical bridges

Wang, Te; Yao, Binling; Guo, Zhilin; Chang, Xiaoyong; Deng, Yi-Fei; Zhang, Yuan-Zhu

2022-04-01

10.1039/d2dt00221c

DALTON TRANSACTIONS   影响因子和分区

1477-9226

1477-9234

Two Ni(II) molecular metallacycles of [Ni-4(bpz*tz(center dot-))(4)(N-3)(4)] (1) and [Ni-3(bpz(ph) tz(center dot-))(3)(pz(Ph)(Cl)tz(center dot-))(3)]center dot 1.3CH(3)OH center dot 9.3H(2)O (2) (bpz*tz = 3,6-bis(3,5-dimethyl-pyrazolyl)-1,2,4,5-tetrazine; bpz(Ph)tz = 3,6-bis (3-phenyl-pyrazolyl)-1,2,4,5-tetrazine; and pz(Ph)(Cl)tz = 3-bis(3-phenyl-pyrazolyl)-6-Cl-1,2,4,5-tetrazine) are reported. The single-crystal X-ray diffraction study reveals that 1 displays a square structure while 2 shows a triangle structure due to the steric effect, both bearing tetrazine radical bridges. Furthermore, magnetic studies reveal that the Ni-radical interaction in 1 is strongly ferromagnetic with a coupling constant (J) of 90.8 cm(-1) in the 2J formalist, while the overall antiferromagnetic behaviour of 2 is presumably due to the compete ferromagnetic (for the Ni-radical(bridging) interaction with J(1) = 95.4 cm(-1)) and anti-ferromagnetic (for the Ni-radical(terminal) interaction, J(2) = -57.5 cm(-1)) couplings.

SCI ; EI

英语

第一 ; 通讯

Stable Support Plan Program of Shenzhen Natural Science Fund[20200925151834005] ; National Natural Science Foundation of China[21901108,22173043]

Chemistry

Chemistry, Inorganic & Nuclear

WOS:000790881100001

ROYAL SOC CHEMISTRY

20222412212577

Antiferromagnetism ; Crystal structure ; Ferromagnetic materials ; Ferromagnetism ; Self assembly ; Single crystals

Magnetism: Basic Concepts and Phenomena:701.2 ; Magnetic Materials:708.4 ; Crystalline Solids:933.1 ; Crystal Lattice:933.1.1 ; Materials Science:951

CHEMISTRY

Web of Science

Southern Univ Sci & Technol SUSTech, Dept Chem, Shenzhen 518055, Peoples R China

Wang, Te,Yao, Binling,Guo, Zhilin,et al. Self-assembly of Ni(II) metallacycles (a square and a triangle) supported by tetrazine radical bridges[J]. DALTON TRANSACTIONS,2022,51:7644-7649.

Wang, Te,Yao, Binling,Guo, Zhilin,Chang, Xiaoyong,Deng, Yi-Fei,&Zhang, Yuan-Zhu.(2022).Self-assembly of Ni(II) metallacycles (a square and a triangle) supported by tetrazine radical bridges.DALTON TRANSACTIONS,51,7644-7649.

Wang, Te,et al."Self-assembly of Ni(II) metallacycles (a square and a triangle) supported by tetrazine radical bridges".DALTON TRANSACTIONS 51(2022):7644-7649.