Crystal structure and magnetic properties of the linear chain organic-intercalated chromium(II) compound: Tetramethylammonium trichlorochromate(II), [(CH3)4N]CrCl3
group P6 3 m(C 6h su2 ) of the hexagonal system, with two molecules in a unit-cell of dimensions: a = b = 9.129(3) A, c = 6.512(2) A. The structure consists of linear one-dimensional chains of chromium atoms with three bridging chlorineatomsbetween them. The compound shows one-dimensional magnetic behaviour with antiferromagnetic intra-chain exchange interactions ( J k = −15.2 K) . At low temperatures
摘要 报道了[(CH 3 ) 4 N]CrCl 3 TMCrC 的晶体结构和磁性能。该材料在六方晶系的空间群 P6 3 m(C 6h su2 ) 中结晶,在尺寸为 a = b = 9.129(3) A, c = 6.512(2) A 的晶胞中具有两个分子。结构由线性一维铬原子链组成,它们之间有三个桥接氯原子。该化合物显示出具有反铁磁性链内交换相互作用 (J k = -15.2 K) 的一维磁性行为。在低温 (TN = 7 K) 下,观察到反铁磁三维有序。