The ferric chloride-α-diamine system. 3. X-ray crystallographic, magnetic susceptibility, and zero- and high-field Mössbauer spectroscopy investigation of [Fe(2,2′-bpy)2Cl2][FeCl4]: Slow paramagnetic relaxation and magnetic ordering of complex bimetallic salts

Edward H. Witten, William M. Reiff, K. Lázár, Brian W. Sullivan, Bruce M. Foxman

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Abstract

The title compound crystallizes in the orthorhombic space group P212121, Z = 4, with a = 11.707 (4) Å, b = 12.038 (4) Å, and c = 18.308 (7) Å. The structure consists of discrete linear arrays of alternating [Fe(bpy)2Cl2]+ cations and [FeCl4]- anions located at intervals of ∼c/2 in the unit cell. The shortest interionic contact (Cl-C) is 3.39 Å. The [Fe(bpy)2Cl2]+ ion forms a distorted octahedron with the two chlorine atoms in a cis arrangement. A significant lengthening is observed for those Fe-N distances trans to Cl (average 2.193 (7) Å; Fe-N cis to Cl average 2.121 (9) Å). The [FeCl4]- ion displays the expected tetrahedral geometry with Fe-Cl = 2.184 (2) Å. Low-temperature magnetic susceptibility and Mössbauer spectra in zero and various applied fields suggest a complex combination of slow paramagnetic relaxation and weak magnetic order in the range 10-1 K.

Original languageEnglish
Pages (from-to)4585-4591
Number of pages7
JournalInorganic Chemistry
Volume24
Issue number26
Publication statusPublished - 1985

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Diamines
diamines
Magnetic susceptibility
Magnetization
Salts
chlorides
Spectroscopy
Ions
salts
magnetic permeability
X rays
Chlorine
linear arrays
spectroscopy
Anions
chlorine
Cations
ions
x rays
anions

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

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title = "The ferric chloride-α-diamine system. 3. X-ray crystallographic, magnetic susceptibility, and zero- and high-field M{\"o}ssbauer spectroscopy investigation of [Fe(2,2′-bpy)2Cl2][FeCl4]: Slow paramagnetic relaxation and magnetic ordering of complex bimetallic salts",
abstract = "The title compound crystallizes in the orthorhombic space group P212121, Z = 4, with a = 11.707 (4) {\AA}, b = 12.038 (4) {\AA}, and c = 18.308 (7) {\AA}. The structure consists of discrete linear arrays of alternating [Fe(bpy)2Cl2]+ cations and [FeCl4]- anions located at intervals of ∼c/2 in the unit cell. The shortest interionic contact (Cl-C) is 3.39 {\AA}. The [Fe(bpy)2Cl2]+ ion forms a distorted octahedron with the two chlorine atoms in a cis arrangement. A significant lengthening is observed for those Fe-N distances trans to Cl (average 2.193 (7) {\AA}; Fe-N cis to Cl average 2.121 (9) {\AA}). The [FeCl4]- ion displays the expected tetrahedral geometry with Fe-Cl = 2.184 (2) {\AA}. Low-temperature magnetic susceptibility and M{\"o}ssbauer spectra in zero and various applied fields suggest a complex combination of slow paramagnetic relaxation and weak magnetic order in the range 10-1 K.",
author = "Witten, {Edward H.} and Reiff, {William M.} and K. L{\'a}z{\'a}r and Sullivan, {Brian W.} and Foxman, {Bruce M.}",
year = "1985",
language = "English",
volume = "24",
pages = "4585--4591",
journal = "Inorganic Chemistry",
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TY - JOUR

T1 - The ferric chloride-α-diamine system. 3. X-ray crystallographic, magnetic susceptibility, and zero- and high-field Mössbauer spectroscopy investigation of [Fe(2,2′-bpy)2Cl2][FeCl4]

T2 - Slow paramagnetic relaxation and magnetic ordering of complex bimetallic salts

AU - Witten, Edward H.

AU - Reiff, William M.

AU - Lázár, K.

AU - Sullivan, Brian W.

AU - Foxman, Bruce M.

PY - 1985

Y1 - 1985

N2 - The title compound crystallizes in the orthorhombic space group P212121, Z = 4, with a = 11.707 (4) Å, b = 12.038 (4) Å, and c = 18.308 (7) Å. The structure consists of discrete linear arrays of alternating [Fe(bpy)2Cl2]+ cations and [FeCl4]- anions located at intervals of ∼c/2 in the unit cell. The shortest interionic contact (Cl-C) is 3.39 Å. The [Fe(bpy)2Cl2]+ ion forms a distorted octahedron with the two chlorine atoms in a cis arrangement. A significant lengthening is observed for those Fe-N distances trans to Cl (average 2.193 (7) Å; Fe-N cis to Cl average 2.121 (9) Å). The [FeCl4]- ion displays the expected tetrahedral geometry with Fe-Cl = 2.184 (2) Å. Low-temperature magnetic susceptibility and Mössbauer spectra in zero and various applied fields suggest a complex combination of slow paramagnetic relaxation and weak magnetic order in the range 10-1 K.

AB - The title compound crystallizes in the orthorhombic space group P212121, Z = 4, with a = 11.707 (4) Å, b = 12.038 (4) Å, and c = 18.308 (7) Å. The structure consists of discrete linear arrays of alternating [Fe(bpy)2Cl2]+ cations and [FeCl4]- anions located at intervals of ∼c/2 in the unit cell. The shortest interionic contact (Cl-C) is 3.39 Å. The [Fe(bpy)2Cl2]+ ion forms a distorted octahedron with the two chlorine atoms in a cis arrangement. A significant lengthening is observed for those Fe-N distances trans to Cl (average 2.193 (7) Å; Fe-N cis to Cl average 2.121 (9) Å). The [FeCl4]- ion displays the expected tetrahedral geometry with Fe-Cl = 2.184 (2) Å. Low-temperature magnetic susceptibility and Mössbauer spectra in zero and various applied fields suggest a complex combination of slow paramagnetic relaxation and weak magnetic order in the range 10-1 K.

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