Slow magnetic relaxation in a series of mononuclear 8-coordinate Fe(II) and Co(II) complexes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

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Author(s)

  • Xin-Xin Jin
  • Xiao-Xiang Chen
  • Jing Xiang
  • Yun-Zhou Chen
  • Li-Hui Jia
  • And 5 others
  • Bing-Wu Wang
  • Shun-Cheung Cheng
  • Xin Zhou
  • Chi-Fai Leung
  • Song Gao

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)3761-3774
Journal / PublicationInorganic Chemistry
Volume57
Issue number7
Online published9 Mar 2018
Publication statusPublished - 2 Apr 2018

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-85044974907&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(11d44423-286e-4909-b9e0-2196d5d4551b).html

Abstract

A series of homoleptic mononuclear 8-coordinate FeII and CoII compounds, [FeII(L2)2](ClO4)2 (2), [FeII(L3)2](ClO4)2 (3), [FeII(L4)2](ClO4)2 (4), [CoII(L1)2](ClO4)2 (5), [CoII(L2)2](ClO4)2 (6), [CoII(L3)2](ClO4)2 (7), and [CoII(L4)2](ClO4)2 (8) (L1 and L2 are 2,9-dialkylcarboxylate-1,10-phenanthroline ligands; L3 and L4 are 6,6′-dialkylcarboxylate-2,2′-bipyridine ligands), have been obtained, and their crystal structures have been determined by X-ray crystallography. The metal center in all of these compounds has an oversaturated coordination number of 8, which is completed by two neutral homoleptic tetradentate ligands and is unconventional in 3d-metal compounds. These compounds are further characterized by electronic spectroscopy, cyclic voltammetry (CV), and magnetic measurements. CV measurements of these complexes in MeCN solution exhibit rich redox properties. Magnetic measurements on these compounds demonstrate that the observed single-ion magnetic (SIM) behavior in the previously reported [FeII(L1)2](ClO4)2 (1) is not a contingent case, since all of the 8-coordinate compounds 2-8 exhibit interesting slow magnetic relaxation under applied direct current fields.

Citation Format(s)

[ RIS ] [ BibTeX ]

Slow magnetic relaxation in a series of mononuclear 8-coordinate Fe(II) and Co(II) complexes. / Jin, Xin-Xin; Chen, Xiao-Xiang; Xiang, Jing et al.

In: Inorganic Chemistry, Vol. 57, No. 7, 02.04.2018, p. 3761-3774.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review