Journal of Cluster Science ( IF 2.7 ) Pub Date : 2021-05-13 , DOI: 10.1007/s10876-021-02081-w Fayun Chen , Haiyang Zhang , Guangzhao Li , Shuhua Zhang
Two novel complexes, namely [Cu2(L)2] (1) and [Ni4(L)4] (2, H2L = 1-{3-[(5-bromo-2-hydroxy-benzylidene)-amino]-2-hydroxyphenyl}-ethanone) were synthesized through solvothermal methods at the same condition. The complexes 1 and 2 were characterized by IR spectroscopy, elemental analysis and single-crystal X-ray diffraction. 1 is dinuclear copper complex while 2 is a cubane nickel cluster. The L ligand displays two different coordination modes. One is the μ1-L-κ3N1:O1:N2 coordination mode and the other is μ3-L-κ6O1:O2:O2:O2:N1:O3 coordination mode. Magnetic studies reveal that the complex 2 displays dominant antiferromagnetic intracluster interactions between the NiII ions through the μ3 oxide bridges with g = 2.29, J = − 0.939 cm−1, and zJ′ = − 0.333 cm−1. Hirshfeld surface analysis revealed that H···H interaction was the dominant intermolecular interaction.
中文翻译:
两种Cu / Ni Schiff碱配合物的合成,晶体结构,Hirshfeld表面分析和磁性
两种新颖的络合物,即[Cu 2(L)2 ](1)和[Ni 4(L)4 ](2,H 2 L = 1- {3-[(5-溴-2-羟基-亚苄基)-在相同条件下通过溶剂热法合成了氨基] -2-羟苯基}-乙酮。配合物1和2通过红外光谱,元素分析和单晶X射线衍射表征。1是双核铜络合物,而2是古巴镍簇。的大号配体显示两个不同的配位模式。一个是μ 1 -大号- κ 3 Ñ 1:o 1:N 2配位模式,另一种是μ 3 -大号- κ 6 ø 1:o 2:o 2:o 2:N 1:o 3配位模式。磁性的研究表明,该配合物2个在Ni之间显示显性反铁磁相互作用群集内II通过离子μ 3氧化物桥与克 = 2.29,Ĵ =-0.939cm -1,并且zJ′ =- 0.333cm -1。Hirshfeld表面分析表明,H···H相互作用是主要的分子间相互作用。