Spontaneous magnetization in the M[N(CN){sub 2}]{sub 2} (M = Cr, Mn) weak ferromagnets

doi:https://doi.org/10.1021/ic9901259

Title: Spontaneous magnetization in the M[N(CN){sub 2}]{sub 2} (M = Cr, Mn) weak ferromagnets

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Abstract

Due to stabilization of relatively strong magnetic coupling, multidimensional coordination polymers consisting of transition metal cations and the dicyanamide ligand. [N(CN){sub 2}]{sup {minus}}, are currently being studied. Homoleptic dicyanamide complexes with octahedral metal sites from 3-D rutile-type architectures. M[N(CN){sub 2}]{sub 2} (M = Co, Ni) exhibit ferromagnetic ordering at 9 and 21 K, respectively, and have been further characterized by neutron diffraction and specific heat measurements. In contrast, interpenetrating M[C(CN){sub 3}]{sub 2} (M = Mn, Fe, Co, Ni, Cu) also have rutile-type networks, but exhibit weak antiferromagnetic coupling while M = V and Cr are strongly antiferromagnetically coupled and exhibit spin frustration. Differences in the magnetic behavior lies in the shorter three-atom spin coupling pathway available for {mu}{sub 3}-[N(CN){sub 2}]{sup {minus}}, while {mu}{sub 3}-[C(CN){sub 3}]{sup {minus}} only provides five-atom pathways. Herein, the authors report the magnetic ordering with a relatively high {Tc} for the weak ferromagnets M[N(CN){sub 2}]{sub 2} (M = Cr, 1; Mn, 2).

Authors:

Manson, J L; Miller, J S ^[1]; Kmety, C R; Epstein, A J ^[2]

Univ. of Utah, Salt Lake City, UT (United States). Dept. of Chemistry
Ohio State Univ., Columbus, OH (United States)

Publication Date:: 1999-05-31

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 354369

DOE Contract Number:: FG02-86ER45271; FG03-93ER45504; FG02-96ER12198

Resource Type:: Journal Article

Journal Name:: Inorganic Chemistry

Additional Journal Information:: Journal Volume: 38; Journal Issue: 11; Other Information: PBD: 31 May 1999

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; CHROMIUM COMPOUNDS; MANGANESE COMPOUNDS; MAGNETIZATION; CYANAMIDES; FERROMAGNETIC MATERIALS; EXPERIMENTAL DATA

Citation Formats


                    Manson, J L, Miller, J S, Kmety, C R, and Epstein, A J. Spontaneous magnetization in the M[N(CN){sub 2}]{sub 2} (M = Cr, Mn) weak ferromagnets.  United States: N. p., 1999. 
        Web.  doi:10.1021/ic9901259.

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                    Manson, J L, Miller, J S, Kmety, C R, & Epstein, A J. Spontaneous magnetization in the M[N(CN){sub 2}]{sub 2} (M = Cr, Mn) weak ferromagnets.  United States.  https://doi.org/10.1021/ic9901259

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                    Manson, J L, Miller, J S, Kmety, C R, and Epstein, A J. Mon .  
        "Spontaneous magnetization in the M[N(CN){sub 2}]{sub 2} (M = Cr, Mn) weak ferromagnets".  United States.  https://doi.org/10.1021/ic9901259.

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@article{osti_354369,

  title        = {Spontaneous magnetization in the M[N(CN){sub 2}]{sub 2} (M = Cr, Mn) weak ferromagnets},

  author       = {Manson, J L and Miller, J S and Kmety, C R and Epstein, A J},

  abstractNote = {Due to stabilization of relatively strong magnetic coupling, multidimensional coordination polymers consisting of transition metal cations and the dicyanamide ligand. [N(CN){sub 2}]{sup {minus}}, are currently being studied. Homoleptic dicyanamide complexes with octahedral metal sites from 3-D rutile-type architectures. M[N(CN){sub 2}]{sub 2} (M = Co, Ni) exhibit ferromagnetic ordering at 9 and 21 K, respectively, and have been further characterized by neutron diffraction and specific heat measurements. In contrast, interpenetrating M[C(CN){sub 3}]{sub 2} (M = Mn, Fe, Co, Ni, Cu) also have rutile-type networks, but exhibit weak antiferromagnetic coupling while M = V and Cr are strongly antiferromagnetically coupled and exhibit spin frustration. Differences in the magnetic behavior lies in the shorter three-atom spin coupling pathway available for {mu}{sub 3}-[N(CN){sub 2}]{sup {minus}}, while {mu}{sub 3}-[C(CN){sub 3}]{sup {minus}} only provides five-atom pathways. Herein, the authors report the magnetic ordering with a relatively high {Tc} for the weak ferromagnets M[N(CN){sub 2}]{sub 2} (M = Cr, 1; Mn, 2).},

  doi          = {10.1021/ic9901259},

  url          = {https://www.osti.gov/biblio/354369},
  journal      = {Inorganic Chemistry},
number       = 11,

  volume       = 38,

  place        = {United States},

  year         = {1999},

  month        = {5}

}

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