Issue 18, 2002
From the journal:

Journal of the Chemical Society, Dalton Transactions

Investigation of the solid state reaction of FeSO4·7H2O with 1,10-phenanthroline†

Lixu Lei,a   Su Jing,‡b   Richard I. Walton,§a   Xinquan Xinb  and  Dermot O'Hare*a  

* Corresponding authors

a Inorganic Chemistry Laboratory, University of Oxford, Oxford, UK
E-mail: dermot.ohare@chem.ox.ac.uk

b State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
E-mail: xxin@netra.nju.edu.cn

Abstract

Solid-state reaction of FeSO4·7H2O and 1,10-phenanthroline in a 1 ∶ 1 molar ratio was investigated by time-resolved in-situ energy dispersive X-ray diffraction (EDXRD), DSC, TG/DTA, Mössbauer and IR spectroscopy. The reaction of these solids takes place rapidly at around 70 °C and initially produces an intermediate crystalline phase, Fe(phen)3SO4·5H2O before cleanly converting to Fe(phen)(H2O)3SO4. This is in contrast to the product of the reaction of FeSO4·7H2O with 1,10-phenanthroline in aqueous solution which produces [Fe(phen)32+][SO42−]. All the spectral data suggest that the final product is a neutral Fe(II) complex. The coordination sphere around the Fe(II) ions is thought to be octahedral consisting of a unidentate sulfate ligand, a bidentate 1,10-phenanthroline ligand and three aquo ligands.

Graphical abstract: Investigation of the solid state reaction of FeSO4·7H2O with 1,10-phenanthroline

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Article information

DOI
https://doi.org/10.1039/B205625A
Article type
Paper
Submitted
11 Jun 2002
Accepted
09 Jul 2002
First published
19 Aug 2002

J. Chem. Soc., Dalton Trans., 2002, 3477-3481

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Investigation of the solid state reaction of FeSO4·7H2O with 1,10-phenanthroline

L. Lei, S. Jing, R. I. Walton, X. Xin and D. O'Hare, J. Chem. Soc., Dalton Trans., 2002, 3477 DOI: 10.1039/B205625A

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