Two Acentric Mononuclear Molecular Complexes with Unusual Magnetic and Ferroelectric Properties
收藏NIAID Data Ecosystem2026-03-09 收录
下载链接：
https://figshare.com/articles/dataset/Two_Acentric_Mononuclear_Molecular_Complexes_with_Unusual_Magnetic_and_Ferroelectric_Properties/2531038
下载链接
链接失效反馈官方服务：
资源简介：
Two acentric, i.e., noncentrosymmetric, mononuclear complexes,
Co(5-ATZ)4Cl2, 1, and Cu(5-ATZ)4Cl2, 2, where 5-ATZ is the monodentate
5-amino-1-H-tetrazole ligand, have been prepared and characterized.
Both complexes crystallize in the tetragonal system with the P4nc space group, a member of the polar
noncentrosymmetric 4mm class, and thus both 1 and 2 can exhibit ferroelectric and nonlinear
optical properties. Magnetic studies indicate that 1 is
a paramagnetic high-spin cobalt(II) complex with a rather extensive
spin–orbit coupling, modeled as a zero-field splitting parameter, D, of ±91(3) cm–1 and with very weak
long-range antiferromagnetic exchange interactions. Direct current
(dc) and ac magnetic studies indicate that 2 is a paramagnetic
copper(II) complex that exhibits weak ferromagnetic exchange interactions
below 15 K. Both 1 and 2 exhibit ferroelectric
hysteresis loops at room temperature with remanent polarizations of
0.015 μC/cm2 and coercive electric fields of 5.5
and 5.7 kV/cm, respectively.
创建时间：
2016-02-21
