Stable Ferromagnetic Crystal of Two‐Dimensional Manganese‐Chromium Oxalate with Supramolecular Cation
作者:Kazuya Kubo、Masashi Yoshitake、Norihisa Hoshino、Shin‐ichiro Noro、Tomoyuki Akutagawa、Takayoshi Nakamura
DOI:10.1002/ejic.202000149
日期:2020.5.10
by alternate stacking of a two‐dimensional honeycomb layer of [MnIICrIII(oxalate)3]–} and the supramolecular cations. Cyclohexyl moieties of tst‐DCH[18]crown‐6 penetrated the pores of the honeycomb layers, excluding solvent molecules in the crystal. The anionic layers showed ferromagnetic order of MnII and CrIII ions with S = 5/2 and S = 3/2 spins, respectively, at 5.5 K. Although the m‐FAni+ showed
(m -FAni +)(tst- DCH [18] crown - 6)的超分子阳离子,其中m- FAni +和tst- DCH [18] crown - 6表示m-氟苯胺基和反式-反式-反式-二环己基[ 18]冠- 6,分别引入到一个铁磁[锰II铬III(草酸盐)3 ] - }层以获得稳定的有机-无机杂化晶体。的晶体结构(米-FAni +)(TST -DCH [18]冠-6)[锰II铬III(草酸盐)3 ] - }由[Mn中的二维蜂窝状层的交替层叠构造II铬III(草酸盐)3 ] -和超分子阳离子}。的环己基部分TST -DCH [18]冠- 6穿透孔的蜂窝层的,不包括在晶体中的溶剂分子。阴离子层表现出的Mn铁磁有序II和Cr III离子与小号= 5/2和小号分别= 3/2自旋,在5.5 K.虽然米-FAni + 相对于芳基环的180°旋转显示出无序,在介电响应中没有观察到明显的异常,表明该无序是静态的。