NDLI: Spin transitions in a series of [Fe(pybox)<sub>2</sub>]<sup>2+</sup> complexes modulated by ligand structures, counter anions, and solvents

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Inorganic Chemistry Frontiers Vol - 3 Issue - 9

Inorganic Chemistry Frontiers Vol - 3 Issue - 8

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Inorganic Chemistry Frontiers Vol - 3 Issue - 6

Inorganic Chemistry Frontiers Vol - 3 Issue - 5

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Inorganic Chemistry Frontiers Vol - 3 Issue - 3

Inorganic Chemistry Frontiers Vol - 3 Issue - 2

Inorganic Chemistry Frontiers Vol -2

Inorganic Chemistry Frontiers Vol -1

Spin transitions in a series of [Fe(pybox)₂]²⁺ complexes modulated by ligand structures, counter anions, and solvents

Content Provider	Royal Society of Chemistry (RSC)
Author	Lü, Xiao-Jin Ding, Zhong-Yu Zhao, Liang Zhu, Yuan-Yuan Meng, Yin-Shan Liu, Tao Gao, Song Li, Hong-Qing
Copyright Year	2016
Abstract	Herein, we investigate the spin transition properties in a series of mononuclear Fe(II) complexes constructed by two pybox ligands and four counter anions. 1(BF4) undergoes an abrupt spin-transition at around 150 K, which proceeds to 50% completeness and is accompanied by a structural phase transition. 1(BPh4)·MeCN, 2(ClO4), and 2(BF4) all display gradual and complete SCO behaviours around or above ambient temperature. The desolvated compound 1(BPh4) exhibits a gradual but incomplete SCO. 2(PF6)·MeCN, 2(PF6) and 2(BPh4) show a two-step SCO. The well-defined two-step SCO of 2(BPh4) takes place at 100–200 K (T1/2 = 150 K) and 400–500 K (T1/2 = 446 K). In contrast, compounds 1(BF4)·MeCN, 1(PF6)·MeCN·Et2O and 1(PF6) remain high-spin at the measured temperatures. The LIESST (light induced excited spin state trapping) effect of several SCO compounds are also investigated, which display photo-conversion during light irradiation at low temperature at a relatively high level. Our results demonstrate that the [Fe(pybox)2]2+ series of complexes will become a new versatile system in spin-crossover research.
Starting Page	1624
Ending Page	1636
Page Count	13
File Format	HTM / HTML PDF
ISSN	20521553
Volume Number	3
Issue Number	12
Journal	Inorganic Chemistry Frontiers
DOI	10.1039/c6qi00417b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	SCO Spin transition Phase transition SCO Group LIESST
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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