Inorganica Chimica Acta, volume 35, pages 285-287
On the nature of the spin ground state of iron(II) in Fe(2,9-di-CH3-phenanthroline)2(NCS)2
Bruce W. Dockum
1
,
William Michael Reiff
1
Publication type: Journal Article
Publication date: 1979-01-01
Journal:
Inorganica Chimica Acta
scimago Q2
wos Q2
SJR: 0.386
CiteScore: 6.0
Impact factor: 2.7
ISSN: 00201693, 18733255
Materials Chemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
The temperature dependence of the zero field Mossbauer spectrum and magnetic susceptibility of Fe(2,9-di-CH3-phenanthroline)2(NCS)2 over the range 1.8 to 300 K shows that the complex contains spin quintet iron(II) at all temperatures. The ligand is apparently to the weak field side of the ‘crossover point’ and contrary to the results of a previous study there is no evidence of a transition to a lower multiplicity (triplet or singlet) ground state. The observed decrease of the magnetic moment (4.81 μβ at 302 K to 3.48 μβ at 1.82 K) is consistent with zero field splitting (|D|≈ 5 cm−1) of the ground spin manifold.
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