Single-molecule magnets constructed from cyanometalates: {[Tp*Fe III(CN)3MII(DMF)4] 2[OTf]2}·2DMF (MII = Co, Ni)

Dongfeng Li; Sean Parkin; Guangbin Wang; Gordon T. Yee; Andrey V. Prosvirin; Stephen M. Holmes

doi:10.1021/ic048367i

Single-molecule magnets constructed from cyanometalates: {[Tp*Fe ^III(CN)₃M^II(DMF)₄] ₂[OTf]₂}·2DMF (M^II = Co, Ni)

Dongfeng Li
, Sean Parkin
, Guangbin Wang
, Gordon T. Yee
, Andrey V. Prosvirin
, Stephen M. Holmes

Chemistry

Producción científica: Article › revisión exhaustiva

198 Citas (Scopus)

Resumen

Treatment of several divalent transition-metal trifluoromethane-sulfonates [M^II(OTf)₂; M^II = Mn, Co, Ni] with [NEt ₄][Tp*Fe^III(CN)₃] [Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate] in DMF affords three isostructural rectangular clusters of {[Tp*Fe^III(CN)₃M ^II(DMF)₄]₂-[OTf]₂}·2DMF (M^II = Mn, 3; Co, 4; Ni, 5) stoichiometry. Magnetic studies of 3-5 indicate that the Tp*Fe(CN)₃^- centers are highly anisotropic and exhibit antiferromagnetic (3 and 4) and ferromagnetic (5) exchange to afford S = 4, 2, and 3 spin ground states, respectively. ac susceptibility measurements suggest that 4 and 5 exhibit incipient single-molecule magnetic behavior below 2 K.

Idioma original	English
Páginas (desde-hasta)	4903-4905
Número de páginas	3
Publicación	Inorganic Chemistry
Volumen	44
N.º	14
DOI	https://doi.org/10.1021/ic048367i
Estado	Published - jul 11 2005

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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10.1021/ic048367i

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title = "Single-molecule magnets constructed from cyanometalates: \{[Tp*Fe III(CN)3MII(DMF)4] 2[OTf]2\}·2DMF (MII = Co, Ni)",

abstract = "Treatment of several divalent transition-metal trifluoromethane-sulfonates [MII(OTf)2; MII = Mn, Co, Ni] with [NEt 4][Tp*FeIII(CN)3] [Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate] in DMF affords three isostructural rectangular clusters of \{[Tp*FeIII(CN)3M II(DMF)4]2-[OTf]2\}·2DMF (MII = Mn, 3; Co, 4; Ni, 5) stoichiometry. Magnetic studies of 3-5 indicate that the Tp*Fe(CN)3- centers are highly anisotropic and exhibit antiferromagnetic (3 and 4) and ferromagnetic (5) exchange to afford S = 4, 2, and 3 spin ground states, respectively. ac susceptibility measurements suggest that 4 and 5 exhibit incipient single-molecule magnetic behavior below 2 K.",

author = "Dongfeng Li and Sean Parkin and Guangbin Wang and Yee, \{Gordon T.\} and Prosvirin, \{Andrey V.\} and Holmes, \{Stephen M.\}",

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doi = "10.1021/ic048367i",

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T1 - Single-molecule magnets constructed from cyanometalates

T2 - {[Tp*Fe III(CN)3MII(DMF)4] 2[OTf]2}·2DMF (MII = Co, Ni)

AU - Li, Dongfeng

AU - Parkin, Sean

AU - Wang, Guangbin

AU - Yee, Gordon T.

AU - Prosvirin, Andrey V.

AU - Holmes, Stephen M.

PY - 2005/7/11

Y1 - 2005/7/11

N2 - Treatment of several divalent transition-metal trifluoromethane-sulfonates [MII(OTf)2; MII = Mn, Co, Ni] with [NEt 4][Tp*FeIII(CN)3] [Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate] in DMF affords three isostructural rectangular clusters of {[Tp*FeIII(CN)3M II(DMF)4]2-[OTf]2}·2DMF (MII = Mn, 3; Co, 4; Ni, 5) stoichiometry. Magnetic studies of 3-5 indicate that the Tp*Fe(CN)3- centers are highly anisotropic and exhibit antiferromagnetic (3 and 4) and ferromagnetic (5) exchange to afford S = 4, 2, and 3 spin ground states, respectively. ac susceptibility measurements suggest that 4 and 5 exhibit incipient single-molecule magnetic behavior below 2 K.

AB - Treatment of several divalent transition-metal trifluoromethane-sulfonates [MII(OTf)2; MII = Mn, Co, Ni] with [NEt 4][Tp*FeIII(CN)3] [Tp* = hydridotris(3,5-dimethylpyrazol-1-yl)borate] in DMF affords three isostructural rectangular clusters of {[Tp*FeIII(CN)3M II(DMF)4]2-[OTf]2}·2DMF (MII = Mn, 3; Co, 4; Ni, 5) stoichiometry. Magnetic studies of 3-5 indicate that the Tp*Fe(CN)3- centers are highly anisotropic and exhibit antiferromagnetic (3 and 4) and ferromagnetic (5) exchange to afford S = 4, 2, and 3 spin ground states, respectively. ac susceptibility measurements suggest that 4 and 5 exhibit incipient single-molecule magnetic behavior below 2 K.

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