首页> 外文期刊>Bulletin of the Chemical Society of Japan >Infinite Chain Structure and Steep Spin Crossover of a Fe~(III) Complex with a N_3O_2 Pentadentate Schiff-Base Ligand and 4-Aminopyridine
【24h】

Infinite Chain Structure and Steep Spin Crossover of a Fe~(III) Complex with a N_3O_2 Pentadentate Schiff-Base Ligand and 4-Aminopyridine

机译:具有N_3O_2五齿席夫碱配体和4-氨基吡啶的Fe〜(III)配合物的无限链结构和陡峭自旋交叉

获取原文
获取原文并翻译 | 示例
           

摘要

A spin crossover (SC) Fe~(III) complex,[Fe~(III)(4-NH_2py)L]BPh_4,was synthesized and characterized,where 4-NH_2py = 4-aminopyridine,H_2L = pentadentate N_3O_2 Schiff-base ligand of the 2:1 condensation product of 3-methoxysalicylaldehyde and bis(3-aminopropyl)methylamine,and BPh_4~- = tetraphenylborate.Cryomagnetic susceptibility measurements revealed a steep spin transition between Fe~(III) low-spin (S = 1/2) and high-spin (S = 5/2) states at T_(1/2) = 120 K,but showed no hysteresis.Crystal-structural analyses were performed at 293 and 90 K in order to investigate the origin of the steep spin crossover,and to determine the structures of the high-spin and low-spin states.The crystal structure consisted of a one-dimensional chain constructed by hydrogen bonds between the amino group of 4-NH_2py of a molecule and the methoxy group of the adjacent molecule.
机译:合成并表征了一种自旋交联的Fe〜(III)配合物[Fe〜(III)(4-NH_2py)L] BPh_4,其中4-NH_2py = 4-氨基吡啶,H_2L =五齿N_3O_2 Schiff碱配体甲氧基水杨醛和双(3-氨基丙基)甲胺的2:1缩合产物与BPh_4〜-=四苯基硼酸盐的混合物。磁化率测量显示Fe〜(III)低自旋之间有一个陡峭的自旋转变(S = 1/2 )和T_(1/2)= 120 K处的高自旋(S = 5/2)状态,但没有显示磁滞现象。在293和90 K处进行了晶体结构分析,以研究陡旋的起源晶体结构由分子的4-NH_2py的氨基和相邻分子的甲氧基之间的氢键构成的一维链组成,该一维链由一维链组成。分子。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号