Supramolecular aspects of iron(II) crown-dipyridyl spin-crossover compounds

Ian A. Gass; Stuart R. Batten; Craig M. Forsyth; Boujemaa Moubaraki; Caspar J. Schneider; Keith S. Murray

doi:10.1016/j.ccr.2011.01.033

Supramolecular aspects of iron(II) crown-dipyridyl spin-crossover compounds

Ian A. Gass
, Stuart R. Batten
, Craig M. Forsyth
, Boujemaa Moubaraki
, Caspar J. Schneider
, Keith S. Murray

University of Brighton

Research output: Contribution to journal › Article › peer-review

Abstract

The synthesis, structures and magnetism of the complexes [Fe II(3-bpp)2][bpmdcK](SeCN)1.7(ClO4)1.3·MeOH·H2O (1), [FeII(3-bpp)2]4[bpmdcH2(H2O)2](ClO4)10·7H2O·3MeOH (2) and cis-[FeII2(NCSe)2((3,5-Me2pz)3CH)2(μ-bpmdc)]·2MeCN (3) (where 3-bpp = 2,6-di(pyrazole-3yl)pyridine, bpmdc = N,N'- bis(4-pyridyl-methyl)diaza-18-crown-6) and (3,5-Me2pz)3CH = tris(3,5-dimethylpyrazole)methane, are presented. These compounds form a study of the supramolecular influence of host–guest/crown-ether interactions and cation-to-crown hydrogen-bonding effects upon d6 spin transitions, the latter occurring above, or near to, room temperature in 1 and 2. Desolvation effects also influence the T1/2 values. The dinuclear compound 3 contains covalent pyridyl (crown) N to Fe bridge bonding and remains high spin.

Original language	English
Pages (from-to)	2058-2067
Number of pages	10
Journal	Coordination Chemistry Reviews
Volume	255
Issue number	17-18
DOIs	https://doi.org/10.1016/j.ccr.2011.01.033
Publication status	Published - 27 Jan 2011

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@article{1d8fe2b43a684a4c913a6a4c2877f558,

title = "Supramolecular aspects of iron(II) crown-dipyridyl spin-crossover compounds",

abstract = "The synthesis, structures and magnetism of the complexes [Fe II(3-bpp)2][bpmdcK](SeCN)1.7(ClO4)1.3·MeOH·H2O (1), [FeII(3-bpp)2]4[bpmdcH2(H2O)2](ClO4)10·7H2O·3MeOH (2) and cis-[FeII2(NCSe)2((3,5-Me2pz)3CH)2(μ-bpmdc)]·2MeCN (3) (where 3-bpp = 2,6-di(pyrazole-3yl)pyridine, bpmdc = N,N'- bis(4-pyridyl-methyl)diaza-18-crown-6) and (3,5-Me2pz)3CH = tris(3,5-dimethylpyrazole)methane, are presented. These compounds form a study of the supramolecular influence of host–guest/crown-ether interactions and cation-to-crown hydrogen-bonding effects upon d6 spin transitions, the latter occurring above, or near to, room temperature in 1 and 2. Desolvation effects also influence the T1/2 values. The dinuclear compound 3 contains covalent pyridyl (crown) N to Fe bridge bonding and remains high spin.",

author = "Gass, \{Ian A.\} and Batten, \{Stuart R.\} and Forsyth, \{Craig M.\} and Boujemaa Moubaraki and Schneider, \{Caspar J.\} and Murray, \{Keith S.\}",

year = "2011",

month = jan,

day = "27",

doi = "10.1016/j.ccr.2011.01.033",

language = "English",

volume = "255",

pages = "2058--2067",

journal = "Coordination Chemistry Reviews",

issn = "0010-8545",

number = "17-18",

}

TY - JOUR

T1 - Supramolecular aspects of iron(II) crown-dipyridyl spin-crossover compounds

AU - Gass, Ian A.

AU - Batten, Stuart R.

AU - Forsyth, Craig M.

AU - Moubaraki, Boujemaa

AU - Schneider, Caspar J.

AU - Murray, Keith S.

PY - 2011/1/27

Y1 - 2011/1/27

N2 - The synthesis, structures and magnetism of the complexes [Fe II(3-bpp)2][bpmdcK](SeCN)1.7(ClO4)1.3·MeOH·H2O (1), [FeII(3-bpp)2]4[bpmdcH2(H2O)2](ClO4)10·7H2O·3MeOH (2) and cis-[FeII2(NCSe)2((3,5-Me2pz)3CH)2(μ-bpmdc)]·2MeCN (3) (where 3-bpp = 2,6-di(pyrazole-3yl)pyridine, bpmdc = N,N'- bis(4-pyridyl-methyl)diaza-18-crown-6) and (3,5-Me2pz)3CH = tris(3,5-dimethylpyrazole)methane, are presented. These compounds form a study of the supramolecular influence of host–guest/crown-ether interactions and cation-to-crown hydrogen-bonding effects upon d6 spin transitions, the latter occurring above, or near to, room temperature in 1 and 2. Desolvation effects also influence the T1/2 values. The dinuclear compound 3 contains covalent pyridyl (crown) N to Fe bridge bonding and remains high spin.

AB - The synthesis, structures and magnetism of the complexes [Fe II(3-bpp)2][bpmdcK](SeCN)1.7(ClO4)1.3·MeOH·H2O (1), [FeII(3-bpp)2]4[bpmdcH2(H2O)2](ClO4)10·7H2O·3MeOH (2) and cis-[FeII2(NCSe)2((3,5-Me2pz)3CH)2(μ-bpmdc)]·2MeCN (3) (where 3-bpp = 2,6-di(pyrazole-3yl)pyridine, bpmdc = N,N'- bis(4-pyridyl-methyl)diaza-18-crown-6) and (3,5-Me2pz)3CH = tris(3,5-dimethylpyrazole)methane, are presented. These compounds form a study of the supramolecular influence of host–guest/crown-ether interactions and cation-to-crown hydrogen-bonding effects upon d6 spin transitions, the latter occurring above, or near to, room temperature in 1 and 2. Desolvation effects also influence the T1/2 values. The dinuclear compound 3 contains covalent pyridyl (crown) N to Fe bridge bonding and remains high spin.

U2 - 10.1016/j.ccr.2011.01.033

DO - 10.1016/j.ccr.2011.01.033

M3 - Article

SN - 0010-8545

VL - 255

SP - 2058

EP - 2067

JO - Coordination Chemistry Reviews

JF - Coordination Chemistry Reviews

IS - 17-18

ER -

Supramolecular aspects of iron(II) crown-dipyridyl spin-crossover compounds

Abstract

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