Accessibility navigation


Ligand substituents effect on 10Dq

Shee, N. K., Drew, M. G.B. and Datta, D. (2012) Ligand substituents effect on 10Dq. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 97. pp. 1111-1114. ISSN 1386-1425

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1016/j.saa.2012.07.098

Abstract/Summary

Reaction of 5,6-dihydro-5,6-epoxy-1,10-phenanthroline (L) with Ni(ClO4)(2)center dot 6H(2)O in methanol in 3:1 M proportion at room temperature yields [NiL3](ClO4)(2)center dot 2H(2)O. The X-ray crystal structure of the cation Nil(3)(2+) has been determined. Aminolysis of the three epoxide rings in NiL32+ by 4-substituted anilines in boiling water without any Lewis acid catalyst gives a family of Ni(II) complexes with octahedral NiL62+ core. In these complexes, crystal field splitting 10Dq varies from 11601 to 15798 cm(-1) in acetonitrile. The variation in 10Dq is found to be satisfactorily linear (r(2) = 0.951) with the Hammett sigma(R) parameter of the substituent on the anilino fragment. 10Dq increases with the increase in the electron donation ability of the substituent.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:30328
Uncontrolled Keywords:Nickel(II); Epoxide; Epoxide opening; 10Dq; Hammett parameter
Publisher:Elsevier

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation