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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4099
Title: Selenadiazolopyridine: A synthon for supramolecular assembly and complexes with metallophilic interactions
Authors: Mukherjee G.
Singh P.
Ganguri C.
Sharma S.
Singh H.B.
Goel N.
Singh U.P.
Butcher R.J.
Published in: Inorganic Chemistry
Abstract: The synthesis and characterization of the complexes of Cu(I), Ag(I), Cu(II), and Co(II) ions with 1,2,5-selenadiazolopyridine (psd) is reported. The following complexes have been prepared: [Cu 2(psd) 3(CH 3CN) 2] 2+2(PF 6 -); [(CuCl) 2(psd) 3]; [Cu 2(psd) 6] 2+2(ClO 4) -; [Ag 2(psd) 2] 2+2(NO 3) -; [Ag 2(psd) 2] 2+2(CF 3COO) -; [Cu(psd) 2(H 2O) 3] 2+2(ClO 4) -·(psd) 2; [Cu(psd) 4(H 2O)] 2+2(ClO 4) -·(CHCl 3); [Cu(psd) 2(H 2O) 3] 2+2(NO 3) -·(H 2O)·(psd) 2, and [Co(psd) 2(H 2O) 4] 2+2(ClO 4) -·(psd) 2. The electronic structure of ligand psd, in particular the bond order of Se-N bonds, has been probed by X-ray diffraction, 77Se NMR, and computational studies. A detailed analysis of the crystal structures of the ligand and the complexes revealed interesting supramolecular assembly. The assembly was further facilitated by the presence of neutral ligands for some complexes (Cu(II) and Co(II)). The molecular structure of the ligand showed that it was present as a dimer in the solid state where the monomers were linked by strong secondary bonding Se···N interactions. The crystal structures of Cu(I) and Ag(I) complexes revealed the dinuclear nature with characteristic metallophilic interactions [M···M] (M = Cu, Ag), while the Cu(II) and Co(II) complexes were mononuclear. The presence of M···M interactions has been further probed by Atoms in Molecules (AIM) calculations. The paramagnetic Cu(II) and Co(II) complexes have been characterized by UV-vis, ESI spectroscopy, and room temperature magnetic measurements. © 2012 American Chemical Society.
Citation: Inorganic Chemistry (2012), 51(15): 8128-8140
URI: https://doi.org/10.1021/ic3005272
http://repository.iitr.ac.in/handle/123456789/4099
Issue Date: 2012
ISSN: 201669
Author Scopus IDs: 7101861402
55463329300
55328263800
7405876575
35612432200
7102536856
57203181883
7201947292
Author Affiliations: Mukherjee, G., Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai 400076, India
Singh, P., Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai 400076, India
Ganguri, C., Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai 400076, India
Sharma, S., Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai 400076, India
Singh, H.B., Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai 400076, India
Goel, N., Department of Chemistry, Indian Institute of Technology, Roorkee 247667, India
Singh, U.P., Department of Chemistry, Indian Institute of Technology, Roorkee 247667, India
Butcher, R.J., Department of Chemistry, Howard University, Washington, DC 20059, United States
Corresponding Author: Singh, H.B.; Department of Chemistry, Indian Institute of Technology, Bombay, Mumbai 400076, India; email: chhbsia@chem.iitb.ac.in
Appears in Collections:Journal Publications [CY]

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