Syntheses, Crystal Structures and Magnetic Properties of Cr(NCNH2)4Cl2 and Mn(NCNH2)4Cl2
2012 ◽
Vol 67
(11)
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pp. 1205-1211
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Keyword(s):
X Ray
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The two isotypic compounds Cr(NCNH2)4Cl2 and Mn(NCNH2)4Cl2 have been synthesized and characterized by X-ray diffraction. They crystallize in the cubic space group Im3̄m (Z = 6) with a = 12:643(2) Å for Cr(NCNH2)4Cl2 and a = 12:821(1) Å for Mn(NCNH2)4Cl2. The divalent transition metal ions are octahedrally coordinated by four H2NCN molecules in equatorial and two chloride ions in axial positions. The magnetic susceptibility data of the four Curie-paramagnetic compounds Cr(NCNH2)4Cl2, Mn(NCNH2)4Cl2, Co(NCNH2)4Cl2, and Ni(NCNH2)4Cl2 have been analyzed in greater detail, including many-body quantum theory.
2014 ◽
Vol 454
(1)
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pp. 21-24
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2006 ◽
Vol 61
(7)
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pp. 808-812
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