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Bradley JM, Carling SG, Visser D, et al. Structural and physical properties of the ferromagnetic tris-dithiooxalato compounds, A[M(II)Cr(III)(C(2)S(2)O(2))(3)], with A(+) = N(n-C(n)()H(2)(n)(+1))(4)(+) (n = 3-5) and P(C(6)H(5))(4)(+) and M(II) = Mn, Fe, Co, and Ni. Inorg Chem. 2003;42(4):986-96doi: 10.1021/ic020302x.
Bradley, J. M., Carling, S. G., Visser, D., Day, P., Hautot, D., & Long, G. J. (2003). Structural and physical properties of the ferromagnetic tris-dithiooxalato compounds, A[M(II)Cr(III)(C(2)S(2)O(2))(3)], with A(+) = N(n-C(n)()H(2)(n)(+1))(4)(+) (n = 3-5) and P(C(6)H(5))(4)(+) and M(II) = Mn, Fe, Co, and Ni. Inorganic chemistry, 42(4), 986-96. https://doi.org/10.1021/ic020302x
Bradley, Justin M, et al. "Structural and physical properties of the ferromagnetic tris-dithiooxalato compounds, A[M(II)Cr(III)(C(2)S(2)O(2))(3)], with A(+) = N(n-C(n)()H(2)(n)(+1))(4)(+) (n = 3-5) and P(C(6)H(5))(4)(+) and M(II) = Mn, Fe, Co, and Ni." Inorganic chemistry vol. 42,4 (2003): 986-96. doi: https://doi.org/10.1021/ic020302x
Bradley JM, Carling SG, Visser D, Day P, Hautot D, Long GJ. Structural and physical properties of the ferromagnetic tris-dithiooxalato compounds, A[M(II)Cr(III)(C(2)S(2)O(2))(3)], with A(+) = N(n-C(n)()H(2)(n)(+1))(4)(+) (n = 3-5) and P(C(6)H(5))(4)(+) and M(II) = Mn, Fe, Co, and Ni. Inorg Chem. 2003 Feb 24;42(4):986-96. doi: 10.1021/ic020302x. PMID: 12588130.
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Inorg Chem. 2003 Feb 24;42(4):986-96. doi: 10.1021/ic020302x.

Structural and physical properties of the ferromagnetic tris-dithiooxalato compounds, A[M(II)Cr(III)(C(2)S(2)O(2))(3)], with A(+) = N(n-C(n)()H(2)(n)(+1))(4)(+) (n = 3-5) and P(C(6)H(5))(4)(+) and M(II) = Mn, Fe, Co, and Ni.

Inorganic chemistry

Justin M Bradley, Simon G Carling, Dirk Visser, Peter Day, Dimitri Hautot, Gary J Long

Affiliations

  1. Davy Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K.

PMID: 12588130 DOI: 10.1021/ic020302x

Abstract

The structural and magnetic properties of the tris-dithiooxalato salts, A[M(II)Cr(C(2)S(2)O(2))(3)], have been investigated with A(+) = PPh(4)(+), N(n-C(n)()H(2)(n)()(+1))(4)(+), with n = 3-5, where M(II) is Mn, Fe, Co, and Ni. With the exception of A[MnCr(C(2)S(2)O(2))(3)], all the salts are ferromagnets with Curie temperatures, T(c), between 5 and 16 K. In contrast to the corresponding oxalates which are ferromagnetic, the A[MnCr(C(2)S(2)O(2))(3)] compounds are paramagnetic above 2 K. Powder neutron diffraction studies of d(20)-PPh(4)[FeCr(C(2)S(2)O(2))(3)] indicate that no structural phase transitions occur between 2.4 and 285 K and that the coefficient of linear expansion is four times larger for the c-axis than for the a-axis. The crystal structure refined from powder neutron diffraction data confirms the honeycomb layer arrangement observed in the related bimetallic tris-oxalate salts. The Mössbauer spectra reveal that the iron(II) in PPh(4)[FeCr(C(2)S(2)O(2))(3)] is coordinated mainly to six oxygen atoms of the dithiooxalato ligand but with a minor component of sulfur coordination that increases with aging of the sample; the iron(II) is high-spin in both cases. Powder neutron diffraction profiles of d(20)-PPh(4)[FeCr(C(2)S(2)O(2))(3)] below T(c) show magnetic intensity with a q = 0 propagation vector, confirming the presence of ferromagnetic order.

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