Synthesis, molecular and crystalline architecture of a tetracoordinated dinuclear mercury(II) iodide complex containing a bis(didentate) congregator
| Main Authors: | Dipu Sutradhar, Habibar Chowdhury, Subhasis Roy, Barindra Kumar Ghosh |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2015
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5599458 |
Daftar Isi:
- Department of Chemistry, The University of Burdwan, Burdwan-713 104, West Bengal, India E-mail : barin_1@yahoo.co.uk Fax : 91-342-2530452 Department of Chemistry, Kabi Nazrul College, Murarai, Birbhum-731 219, West Bengal, India A tetracoordinated dinuclear mercury(II) iodide complex of the type [Hg2 (L)I4 ] (1) [L = N,N ́-(bis(pyridin-2- yl)benzylidene)-1,6-hexanediamine] has been prepared and characterized using microanalytical, spectroscopic, thermal and X-ray crystallographic results. Structural analysis reveals that the classical tetradentate Schiff base (L) encapsulate two metal centers in bis(didentate) congregation mode. Each mercury(II) center in 1 is in a distorted tetrahedral coordination environment with HgN2 I2 chromophore. Hg(1) is attached with two N atoms of L and two terminal iodides, whereas neighbouring Hg(2) is ligated to the similar rest N donor set of the same Schiff base completing its bis(didentate) mode along with two terminal iodides. In solid-state, dinuclear units of 1 pack through cooperative intermolecular C-H...I hydrogen bond, and π...π and halogen...π interactions giving rise to a 2D sheet structure. In DMF solutions at room temperature L displays high-energy intraligand 1 (π- π*) fluorescence, but this fluorescence intensity is quenched in 1 due to the heavy metal ion effect.