Electron Paramagnetic Resonance Study of Copper(II) Ions in Single Crystals of Thallium Magnesium Sulphate Hexahydrate | Zendy

Krishna R. M. | Zendy; Rao J. L. | Zendy; Chand Prem | Zendy; Lakshman S. V. J. | Zendy

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Electron Paramagnetic Resonance Study of Copper(II) Ions in Single Crystals of Thallium Magnesium Sulphate Hexahydrate

Author(s) -

Krishna R. M.,

Rao J. L.,

Chand Prem,

Lakshman S. V. J.

Publication year - 1989

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221510222

Subject(s) - electron paramagnetic resonance , thallium , chemistry , copper , ion , magnesium , divalent , paramagnetism , inorganic chemistry , gadolinium , crystallography , nuclear magnetic resonance , physics , organic chemistry , quantum mechanics

EPR investigations of the copper(II) ion is carried out in its paramagnetically dilute form in thallium magnesium sulphate hexahydrate (Tl 2 Mg(SO 4 ) 2 · 6 H 2 O) at 300 and 77 K at X‐band. Cu 2+ ions are found to substitute for divalent cations exhibiting two symmetry related equivalent complexes. The g ‐ and A ‐tensors are found to be axially symmetric upto liquid nitrogen temperature (LNT) and are temperature dependent. The ground state is suggested to be mainly a d x 2 − y 2orbital. The molecular orbital coefficients are evaluated and indicate a moderate covalency of Cu 2+ ion.

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