Syntheses, structures, and magnetic properties of acetato- and diphenolato-bridged 3d-4f binuclear complexes [M(3-MeOsaltn)(MeOH) x(ac)Ln(hfac)2](M = ZnII, CuII,NiII,CoII;Ln = LaIII,GdIII, TbIII, DyIII; 3-MeOsaltn = N,N-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato; Ac = Acetato; Hfac = Hexafluoroacetylacetonato; X = 0 or 1)

Masaaki Towatari, Koshiro Nishi, Takeshi Fujinami, Naohide Matsumoto, Yukinari Sunatsuki, Masaaki Kojima, Naotaka Mochida, Takayuki Ishida, Nazzareno Re, Jerzy Mrozinski

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

A series of 3d-4f binuclear complexes, [M(3-MeOsaltn)(MeOH) x(ac)Ln(hfac)2] (x = 0 for M = CuII, Zn II; x = 1 for M = CoII, NiII; Ln = Gd III, TbIII, DyIII, LaIII), have been synthesized and characterized, where 3-MeOsaltn, ac, and hfac denote N,N′-bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato, acetato, and hexafluoroacetylacetonato, respectively. The X-ray analyses demonstrated that all the complexes have an acetato- and diphenolato-bridged MII- LnIII binuclear structure. The CuII-LnIII and ZnII-LnIII complexes are crystallized in an isomorphous triclinic space group P1̄, where the CuII or ZnII ion has square pyramidal coordination geometry with N2O2 donor atoms of 3-MeOsaltn at the equatorial coordination sites and one oxygen atom of the bridging acetato ion at the axial site. The CoII-Ln III and NiII-LnIII complexes are crystallized in an isomorphous monoclinic space group P21/c, where the Co II or NiII ion at the high-spin state has an octahedral coordination environment with N2O2 donor atoms of 3-MeOsaltn at the equatorial sites, and one oxygen atom of the bridged acetato and a methanol oxygen atom at the two axial sites. Each LnIII ion for all the complexes is coordinated by four oxygen atoms of two phenolato and two methoxy oxygen atoms of "ligand-complex" M(3-MeOsaltn), four oxygen atoms of two hfac-, and one oxygen atom of the bridging acetato ion; thus, the coordination number is nine. The temperature dependent magnetic susceptibilities from 1.9 to 300 K and the field-dependent magnetization up to 5 T at 1.9 K were measured. Due to the important orbital contributions of the LnIII (TbIII, DyIII) and to a lesser extent the MII (NiII, CoII) components, the magnetic interaction between MII and LnIII ions were investigated by an empirical approach based on a comparison of the magnetic properties of the MII-LnIII, ZnII-LnIII, and M II-LaIII complexes. The differences of χMT and M(H) values for the MII-LnIII, ZnII-Ln III and those for the MII-LaIII complexes, that is, Δ(T) = (χMT)MLn - (χMT) ZnLn - (χMT)MLa = JMLn(T) and Δ(H) = MMLn(H) - MZnLn(H) - MMLa(H) = JMLn(H), give the information of 3d-4f magnetic interaction. The magnetic interactions are ferromagnetic if MII = (CuII, NiII, and CoII) and Ln = (GdIII, Tb III, and DyIII). The magnitudes of the ferromagnetic interaction, JMLn(T) and JMLn(H), are in the order Cu II-GdIII > CuII-DyIII > CuII-TbIII, while those are in the order of M II-GdIII ≈ MII-TbIII > M II-DyIII for MII = NiII and Co II. Alternating current (ac) susceptibility measurements demonstrated that the NiII-TbIII and CoII-TbIII complexes showed out-of-phase signal with frequency-dependence and the Ni II-DyIII and CoII-DyIII complexes showed small frequency-dependence. The energy barrier for the spin flipping was estimated from the Arrhenius plot to be 14.9(6) and 17.0(4) K for the Ni II-TbIII and CoII-TbIII complexes, respectively, under a dc bias field of 1000 Oe.

Original languageEnglish
Pages (from-to)6160-6178
Number of pages19
JournalInorganic Chemistry
Volume52
Issue number10
DOIs
Publication statusPublished - May 20 2013

Fingerprint

oxygen atoms
Magnetic properties
alternating current
magnetic properties
Atoms
Oxygen
synthesis
Ions
ions
interactions
magnetic permeability
coordination number
Arrhenius plots
atoms
Energy barriers
Magnetic susceptibility
methyl alcohol
plots
Methanol
Magnetization

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Syntheses, structures, and magnetic properties of acetato- and diphenolato-bridged 3d-4f binuclear complexes [M(3-MeOsaltn)(MeOH) x(ac)Ln(hfac)2](M = ZnII, CuII,NiII,CoII;Ln = LaIII,GdIII, TbIII, DyIII; 3-MeOsaltn = N,N-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato; Ac = Acetato; Hfac = Hexafluoroacetylacetonato; X = 0 or 1). / Towatari, Masaaki; Nishi, Koshiro; Fujinami, Takeshi; Matsumoto, Naohide; Sunatsuki, Yukinari; Kojima, Masaaki; Mochida, Naotaka; Ishida, Takayuki; Re, Nazzareno; Mrozinski, Jerzy.

In: Inorganic Chemistry, Vol. 52, No. 10, 20.05.2013, p. 6160-6178.

Research output: Contribution to journalArticle

@article{a79e311d8cb5419ba49ec518ebd5b0ec,
title = "Syntheses, structures, and magnetic properties of acetato- and diphenolato-bridged 3d-4f binuclear complexes [M(3-MeOsaltn)(MeOH) x(ac)Ln(hfac)2](M = ZnII, CuII,NiII,CoII;Ln = LaIII,GdIII, TbIII, DyIII; 3-MeOsaltn = N,N-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato; Ac = Acetato; Hfac = Hexafluoroacetylacetonato; X = 0 or 1)",
abstract = "A series of 3d-4f binuclear complexes, [M(3-MeOsaltn)(MeOH) x(ac)Ln(hfac)2] (x = 0 for M = CuII, Zn II; x = 1 for M = CoII, NiII; Ln = Gd III, TbIII, DyIII, LaIII), have been synthesized and characterized, where 3-MeOsaltn, ac, and hfac denote N,N′-bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato, acetato, and hexafluoroacetylacetonato, respectively. The X-ray analyses demonstrated that all the complexes have an acetato- and diphenolato-bridged MII- LnIII binuclear structure. The CuII-LnIII and ZnII-LnIII complexes are crystallized in an isomorphous triclinic space group P1̄, where the CuII or ZnII ion has square pyramidal coordination geometry with N2O2 donor atoms of 3-MeOsaltn at the equatorial coordination sites and one oxygen atom of the bridging acetato ion at the axial site. The CoII-Ln III and NiII-LnIII complexes are crystallized in an isomorphous monoclinic space group P21/c, where the Co II or NiII ion at the high-spin state has an octahedral coordination environment with N2O2 donor atoms of 3-MeOsaltn at the equatorial sites, and one oxygen atom of the bridged acetato and a methanol oxygen atom at the two axial sites. Each LnIII ion for all the complexes is coordinated by four oxygen atoms of two phenolato and two methoxy oxygen atoms of {"}ligand-complex{"} M(3-MeOsaltn), four oxygen atoms of two hfac-, and one oxygen atom of the bridging acetato ion; thus, the coordination number is nine. The temperature dependent magnetic susceptibilities from 1.9 to 300 K and the field-dependent magnetization up to 5 T at 1.9 K were measured. Due to the important orbital contributions of the LnIII (TbIII, DyIII) and to a lesser extent the MII (NiII, CoII) components, the magnetic interaction between MII and LnIII ions were investigated by an empirical approach based on a comparison of the magnetic properties of the MII-LnIII, ZnII-LnIII, and M II-LaIII complexes. The differences of χMT and M(H) values for the MII-LnIII, ZnII-Ln III and those for the MII-LaIII complexes, that is, Δ(T) = (χMT)MLn - (χMT) ZnLn - (χMT)MLa = JMLn(T) and Δ(H) = MMLn(H) - MZnLn(H) - MMLa(H) = JMLn(H), give the information of 3d-4f magnetic interaction. The magnetic interactions are ferromagnetic if MII = (CuII, NiII, and CoII) and Ln = (GdIII, Tb III, and DyIII). The magnitudes of the ferromagnetic interaction, JMLn(T) and JMLn(H), are in the order Cu II-GdIII > CuII-DyIII > CuII-TbIII, while those are in the order of M II-GdIII ≈ MII-TbIII > M II-DyIII for MII = NiII and Co II. Alternating current (ac) susceptibility measurements demonstrated that the NiII-TbIII and CoII-TbIII complexes showed out-of-phase signal with frequency-dependence and the Ni II-DyIII and CoII-DyIII complexes showed small frequency-dependence. The energy barrier for the spin flipping was estimated from the Arrhenius plot to be 14.9(6) and 17.0(4) K for the Ni II-TbIII and CoII-TbIII complexes, respectively, under a dc bias field of 1000 Oe.",
author = "Masaaki Towatari and Koshiro Nishi and Takeshi Fujinami and Naohide Matsumoto and Yukinari Sunatsuki and Masaaki Kojima and Naotaka Mochida and Takayuki Ishida and Nazzareno Re and Jerzy Mrozinski",
year = "2013",
month = "5",
day = "20",
doi = "10.1021/ic400594u",
language = "English",
volume = "52",
pages = "6160--6178",
journal = "Inorganic Chemistry",
issn = "0020-1669",
publisher = "American Chemical Society",
number = "10",

}

TY - JOUR

T1 - Syntheses, structures, and magnetic properties of acetato- and diphenolato-bridged 3d-4f binuclear complexes [M(3-MeOsaltn)(MeOH) x(ac)Ln(hfac)2](M = ZnII, CuII,NiII,CoII;Ln = LaIII,GdIII, TbIII, DyIII; 3-MeOsaltn = N,N-Bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato; Ac = Acetato; Hfac = Hexafluoroacetylacetonato; X = 0 or 1)

AU - Towatari, Masaaki

AU - Nishi, Koshiro

AU - Fujinami, Takeshi

AU - Matsumoto, Naohide

AU - Sunatsuki, Yukinari

AU - Kojima, Masaaki

AU - Mochida, Naotaka

AU - Ishida, Takayuki

AU - Re, Nazzareno

AU - Mrozinski, Jerzy

PY - 2013/5/20

Y1 - 2013/5/20

N2 - A series of 3d-4f binuclear complexes, [M(3-MeOsaltn)(MeOH) x(ac)Ln(hfac)2] (x = 0 for M = CuII, Zn II; x = 1 for M = CoII, NiII; Ln = Gd III, TbIII, DyIII, LaIII), have been synthesized and characterized, where 3-MeOsaltn, ac, and hfac denote N,N′-bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato, acetato, and hexafluoroacetylacetonato, respectively. The X-ray analyses demonstrated that all the complexes have an acetato- and diphenolato-bridged MII- LnIII binuclear structure. The CuII-LnIII and ZnII-LnIII complexes are crystallized in an isomorphous triclinic space group P1̄, where the CuII or ZnII ion has square pyramidal coordination geometry with N2O2 donor atoms of 3-MeOsaltn at the equatorial coordination sites and one oxygen atom of the bridging acetato ion at the axial site. The CoII-Ln III and NiII-LnIII complexes are crystallized in an isomorphous monoclinic space group P21/c, where the Co II or NiII ion at the high-spin state has an octahedral coordination environment with N2O2 donor atoms of 3-MeOsaltn at the equatorial sites, and one oxygen atom of the bridged acetato and a methanol oxygen atom at the two axial sites. Each LnIII ion for all the complexes is coordinated by four oxygen atoms of two phenolato and two methoxy oxygen atoms of "ligand-complex" M(3-MeOsaltn), four oxygen atoms of two hfac-, and one oxygen atom of the bridging acetato ion; thus, the coordination number is nine. The temperature dependent magnetic susceptibilities from 1.9 to 300 K and the field-dependent magnetization up to 5 T at 1.9 K were measured. Due to the important orbital contributions of the LnIII (TbIII, DyIII) and to a lesser extent the MII (NiII, CoII) components, the magnetic interaction between MII and LnIII ions were investigated by an empirical approach based on a comparison of the magnetic properties of the MII-LnIII, ZnII-LnIII, and M II-LaIII complexes. The differences of χMT and M(H) values for the MII-LnIII, ZnII-Ln III and those for the MII-LaIII complexes, that is, Δ(T) = (χMT)MLn - (χMT) ZnLn - (χMT)MLa = JMLn(T) and Δ(H) = MMLn(H) - MZnLn(H) - MMLa(H) = JMLn(H), give the information of 3d-4f magnetic interaction. The magnetic interactions are ferromagnetic if MII = (CuII, NiII, and CoII) and Ln = (GdIII, Tb III, and DyIII). The magnitudes of the ferromagnetic interaction, JMLn(T) and JMLn(H), are in the order Cu II-GdIII > CuII-DyIII > CuII-TbIII, while those are in the order of M II-GdIII ≈ MII-TbIII > M II-DyIII for MII = NiII and Co II. Alternating current (ac) susceptibility measurements demonstrated that the NiII-TbIII and CoII-TbIII complexes showed out-of-phase signal with frequency-dependence and the Ni II-DyIII and CoII-DyIII complexes showed small frequency-dependence. The energy barrier for the spin flipping was estimated from the Arrhenius plot to be 14.9(6) and 17.0(4) K for the Ni II-TbIII and CoII-TbIII complexes, respectively, under a dc bias field of 1000 Oe.

AB - A series of 3d-4f binuclear complexes, [M(3-MeOsaltn)(MeOH) x(ac)Ln(hfac)2] (x = 0 for M = CuII, Zn II; x = 1 for M = CoII, NiII; Ln = Gd III, TbIII, DyIII, LaIII), have been synthesized and characterized, where 3-MeOsaltn, ac, and hfac denote N,N′-bis(3-methoxy-2-oxybenzylidene)-1,3-propanediaminato, acetato, and hexafluoroacetylacetonato, respectively. The X-ray analyses demonstrated that all the complexes have an acetato- and diphenolato-bridged MII- LnIII binuclear structure. The CuII-LnIII and ZnII-LnIII complexes are crystallized in an isomorphous triclinic space group P1̄, where the CuII or ZnII ion has square pyramidal coordination geometry with N2O2 donor atoms of 3-MeOsaltn at the equatorial coordination sites and one oxygen atom of the bridging acetato ion at the axial site. The CoII-Ln III and NiII-LnIII complexes are crystallized in an isomorphous monoclinic space group P21/c, where the Co II or NiII ion at the high-spin state has an octahedral coordination environment with N2O2 donor atoms of 3-MeOsaltn at the equatorial sites, and one oxygen atom of the bridged acetato and a methanol oxygen atom at the two axial sites. Each LnIII ion for all the complexes is coordinated by four oxygen atoms of two phenolato and two methoxy oxygen atoms of "ligand-complex" M(3-MeOsaltn), four oxygen atoms of two hfac-, and one oxygen atom of the bridging acetato ion; thus, the coordination number is nine. The temperature dependent magnetic susceptibilities from 1.9 to 300 K and the field-dependent magnetization up to 5 T at 1.9 K were measured. Due to the important orbital contributions of the LnIII (TbIII, DyIII) and to a lesser extent the MII (NiII, CoII) components, the magnetic interaction between MII and LnIII ions were investigated by an empirical approach based on a comparison of the magnetic properties of the MII-LnIII, ZnII-LnIII, and M II-LaIII complexes. The differences of χMT and M(H) values for the MII-LnIII, ZnII-Ln III and those for the MII-LaIII complexes, that is, Δ(T) = (χMT)MLn - (χMT) ZnLn - (χMT)MLa = JMLn(T) and Δ(H) = MMLn(H) - MZnLn(H) - MMLa(H) = JMLn(H), give the information of 3d-4f magnetic interaction. The magnetic interactions are ferromagnetic if MII = (CuII, NiII, and CoII) and Ln = (GdIII, Tb III, and DyIII). The magnitudes of the ferromagnetic interaction, JMLn(T) and JMLn(H), are in the order Cu II-GdIII > CuII-DyIII > CuII-TbIII, while those are in the order of M II-GdIII ≈ MII-TbIII > M II-DyIII for MII = NiII and Co II. Alternating current (ac) susceptibility measurements demonstrated that the NiII-TbIII and CoII-TbIII complexes showed out-of-phase signal with frequency-dependence and the Ni II-DyIII and CoII-DyIII complexes showed small frequency-dependence. The energy barrier for the spin flipping was estimated from the Arrhenius plot to be 14.9(6) and 17.0(4) K for the Ni II-TbIII and CoII-TbIII complexes, respectively, under a dc bias field of 1000 Oe.

UR - http://www.scopus.com/inward/record.url?scp=84878302538&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878302538&partnerID=8YFLogxK

U2 - 10.1021/ic400594u

DO - 10.1021/ic400594u

M3 - Article

C2 - 23646986

AN - SCOPUS:84878302538

VL - 52

SP - 6160

EP - 6178

JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

IS - 10

ER -