Author： Van Dijk N. Noort M. Van Der Waals J.H.
Publisher： Taylor & Francis Ltd
ISSN： 1362-3028
Source： Molecular Physics, Vol.44, Iss.4, 1981-11, pp. : 891-911
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Abstract
The phosphorescence spectrum of the metastable 4 E u state of copper porphin in single crystals of n -octane (C 8 ) and n -decane (C 10 ) has been studied between 2·3 and 35 K, with and without a magnetic field B. The crystal field splitting between the orbital components observed at 35 K is δ = 30·3 ± 0·3 (C 8 ), 13·8 ± 0·2 cm -1 (C 10 ). From the Zeeman shifts we derive the effective orbital angular momentum Λ′ = 0·8 ± 0·2 (C 10 ), the spin-orbit coupling parameter | Z ′| = 1·5 ± 1·0 cm -1 (C 10 ), the spin-spin dipolar interaction parameters D = -0·1 ± 0·2 cm -1 (C 8 , C 10 ) and | E | = 0·31 ± 0·03 cm -1 (C 8 , C 10 ), and the g -factors g ∥ = 2·14 ± 0·04 (C 8 , C 10 ) and g ⊥ = 2·00 ± 0·03 (C 8 , C 10 ).
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