Syntheses, structures, and magnetic properties of discrete cyano-bridged heterodinuclear complexes composed of MnIII(salen)-type complex and MIII(CN)6 anion (MIII = Fe, Mn, and Cr)

Ryuta Ishikawa; Motohiro Nakano; Brian K. Breedlove; Masahiro Yamashita

doi:10.1016/j.poly.2013.06.012

Syntheses, structures, and magnetic properties of discrete cyano-bridged heterodinuclear complexes composed of Mn^III(salen)-type complex and M^III(CN)₆ anion (M^III = Fe, Mn, and Cr)

Ryuta Ishikawa, Motohiro Nakano, Brian K. Breedlove, Masahiro Yamashita

SCI - Chemistry

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

16 Citations (Scopus)

Abstract

Reacting [Mn^III(5-TMAM(R)-salmen)(H₂O) ₂](ClO₄)₃·H₂O with [M ^III(CN)₆]^3- moieties yields a series of discrete cyano-bridged heterodinuclear complexes, [Mn^III(5-TMAM(R)- salmen)(H₂O)M^III(CN)₆]·7H ₂O·MeCN (where 5-TMAM(R)-salmen = (R)-N,N′-(1- methylethylene)bis(5-trimethylammoniomethylsalicylideneiminate; M = Fe (1), Mn (2), and Cr (3)). dc magnetic susceptibility and magnetization studies on powdered samples showed that the Mn^III(5-TMAM(R)-salmen) moiety had significant uniaxial anisotropy and that [M^III(CN)₆] ^3- moieties of 1 and 2 had magnetic anisotropy due to unquenched orbital angular momenta, which significantly affects the magnetic behavior of this system. Frequency-dependent ac susceptibility signals indicated that slow magnetic relaxation was occurring, meaning that 1 and 2 behave as single-molecule magnets.

Original language	English
Pages (from-to)	346-351
Number of pages	6
Journal	Polyhedron
Volume	64
DOIs	https://doi.org/10.1016/j.poly.2013.06.012
Publication status	Published - 2013

Keywords

Cyano-bridged
Heterometallic
Magnetic properties
Manganese(III)
Single-molecule magnets

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10.1016/j.poly.2013.06.012

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title = "Syntheses, structures, and magnetic properties of discrete cyano-bridged heterodinuclear complexes composed of MnIII(salen)-type complex and MIII(CN)6 anion (MIII = Fe, Mn, and Cr)",

abstract = "Reacting [MnIII(5-TMAM(R)-salmen)(H2O) 2](ClO4)3·H2O with [M III(CN)6]3- moieties yields a series of discrete cyano-bridged heterodinuclear complexes, [MnIII(5-TMAM(R)- salmen)(H2O)MIII(CN)6]·7H 2O·MeCN (where 5-TMAM(R)-salmen = (R)-N,N′-(1- methylethylene)bis(5-trimethylammoniomethylsalicylideneiminate; M = Fe (1), Mn (2), and Cr (3)). dc magnetic susceptibility and magnetization studies on powdered samples showed that the MnIII(5-TMAM(R)-salmen) moiety had significant uniaxial anisotropy and that [MIII(CN)6] 3- moieties of 1 and 2 had magnetic anisotropy due to unquenched orbital angular momenta, which significantly affects the magnetic behavior of this system. Frequency-dependent ac susceptibility signals indicated that slow magnetic relaxation was occurring, meaning that 1 and 2 behave as single-molecule magnets.",

keywords = "Cyano-bridged, Heterometallic, Magnetic properties, Manganese(III), Single-molecule magnets",

author = "Ryuta Ishikawa and Motohiro Nakano and Breedlove, {Brian K.} and Masahiro Yamashita",

note = "Funding Information: This work was financially supported by a Grant-in-Aid for Scientific Research (S) (Grant No. 20225003) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan. ",

year = "2013",

doi = "10.1016/j.poly.2013.06.012",

language = "English",

volume = "64",

pages = "346--351",

journal = "Polyhedron",

issn = "0277-5387",

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TY - JOUR

T1 - Syntheses, structures, and magnetic properties of discrete cyano-bridged heterodinuclear complexes composed of MnIII(salen)-type complex and MIII(CN)6 anion (MIII = Fe, Mn, and Cr)

AU - Ishikawa, Ryuta

AU - Nakano, Motohiro

AU - Breedlove, Brian K.

AU - Yamashita, Masahiro

N1 - Funding Information: This work was financially supported by a Grant-in-Aid for Scientific Research (S) (Grant No. 20225003) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.

PY - 2013

Y1 - 2013

N2 - Reacting [MnIII(5-TMAM(R)-salmen)(H2O) 2](ClO4)3·H2O with [M III(CN)6]3- moieties yields a series of discrete cyano-bridged heterodinuclear complexes, [MnIII(5-TMAM(R)- salmen)(H2O)MIII(CN)6]·7H 2O·MeCN (where 5-TMAM(R)-salmen = (R)-N,N′-(1- methylethylene)bis(5-trimethylammoniomethylsalicylideneiminate; M = Fe (1), Mn (2), and Cr (3)). dc magnetic susceptibility and magnetization studies on powdered samples showed that the MnIII(5-TMAM(R)-salmen) moiety had significant uniaxial anisotropy and that [MIII(CN)6] 3- moieties of 1 and 2 had magnetic anisotropy due to unquenched orbital angular momenta, which significantly affects the magnetic behavior of this system. Frequency-dependent ac susceptibility signals indicated that slow magnetic relaxation was occurring, meaning that 1 and 2 behave as single-molecule magnets.

AB - Reacting [MnIII(5-TMAM(R)-salmen)(H2O) 2](ClO4)3·H2O with [M III(CN)6]3- moieties yields a series of discrete cyano-bridged heterodinuclear complexes, [MnIII(5-TMAM(R)- salmen)(H2O)MIII(CN)6]·7H 2O·MeCN (where 5-TMAM(R)-salmen = (R)-N,N′-(1- methylethylene)bis(5-trimethylammoniomethylsalicylideneiminate; M = Fe (1), Mn (2), and Cr (3)). dc magnetic susceptibility and magnetization studies on powdered samples showed that the MnIII(5-TMAM(R)-salmen) moiety had significant uniaxial anisotropy and that [MIII(CN)6] 3- moieties of 1 and 2 had magnetic anisotropy due to unquenched orbital angular momenta, which significantly affects the magnetic behavior of this system. Frequency-dependent ac susceptibility signals indicated that slow magnetic relaxation was occurring, meaning that 1 and 2 behave as single-molecule magnets.

KW - Cyano-bridged

KW - Heterometallic

KW - Magnetic properties

KW - Manganese(III)

KW - Single-molecule magnets

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AN - SCOPUS:84884675882

SN - 0277-5387

VL - 64

SP - 346

EP - 351

JO - Polyhedron

JF - Polyhedron

ER -

Syntheses, structures, and magnetic properties of discrete cyano-bridged heterodinuclear complexes composed of Mn^III(salen)-type complex and M^III(CN)₆ anion (M^III = Fe, Mn, and Cr)

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