Abstract
Functional materials with multiple properties are urgent to be explored to reach high requirements for applications nowadays.In this work,a new multifunctional one-dimensional(1D)chain compound[N(C3H7)4][Cu(ohpma)]·H2O 1(ohpma=deprotonated N-(2-hydoxyphenyl)oxamic acid)exhibiting both 1D antiferromagnetic and nonlinear optical properties,which are both originated from the same polar[Cu(C8H4NO4)]magnetic units,has been successfully synthesized by evaporation at room temperature.Bis-polydentate nature of the(ohpma)3-ligand with constrained tridentate and bidentate coordination sites conducts Cu2+ions coordinating in different geometries and forms 1D chains along the c axis,which are further separated by the[N(C3H7)4]+cations.And the 1D magnetic chains further exhibit noncen-trosymmetric polar arrangement.Nonlinear optical study shows polar compound 1 exhibits a discernible second-harmonic generation(SHG)efficiency and the calculation of the partial density of states indicates that the SHG efficiency of 1 is mainly originated from the polar[Cu(C8H4NO4)]magnetic units.More-over,magnetic susceptibility shows a broad maximum around 70 K with strong intrachain interaction of J/kB=-113.0 K but no long-range order is observed down to 2 K,suggesting that 1 shows a good 1D magnetism.Both good 1D magnetism and SHG activity suggest that 1 could be as a potential multifunc-tional material,particularly.
基金项目
国家自然科学基金(22101091)
中央高校基本科研业务费专项(2019kfyXKJC016)
Innovation and Talent Recruitment Base of New Energy Chemistry and Device(B210003)
Knowledge Innovation Program of Wuhan-Basic Research()
万方数据