Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4077
Title: Cu(II), Zn(II) and Mn(II) complexes of NNS tridentate and Pd(II) complex of NN(μ-S) tetradentate thiobenzyl esters: Synthesis, spectral and X-ray characterization
Authors: Bharati P.
Bharti A.
Bharty M.K.
Singh N.K.
Kashyap S.
Singh U.P.
Butcher R.J.
Published in: Polyhedron
Abstract: A new type of NNS tridentate ligand, N′-[bis(benzylsulfanyl)methylene]-picolinoyl hydrazide (Hbsmph) (1), and N′-(pyridine 2-carbonyl) hydrazine carbodithioic acid benzyl ester (H<inf>2</inf>pchcbe), together with their Cu(II), Zn(II)/Mn(II) and tetranuclear Pd(II) complexes, have been synthesized. The reactions of N′-[bis(benzylsulfanyl)methylene]-picolinoyl hydrazide (Hbsmph) (1) with CuCl<inf>2</inf>·2H<inf>2</inf>O, CuBr<inf>2</inf> and CuCl gave [Cu(bsmph)X·CH<inf>3</inf>OH] {X = Cl (2), Br (3)} and [Cu(bsmph)(μ-Cl)]<inf>2</inf>·2H<inf>2</inf>O (4), respectively. The reactions of N′-(pyridine 2-carbonyl) hydrazine carbodithioic acid benzyl ester (Hpchcbe) with ZnCl<inf>2</inf>·2H<inf>2</inf>O, MnCl<inf>2</inf>·4H<inf>2</inf>O and ZnBr<inf>2</inf> yielded [M(Hpchcbe)<inf>2</inf>]·CHCl<inf>3</inf> {M = Zn (5), Mn (7)} and [Zn(Hpchcbe)<inf>2</inf>] (6), which possess a distorted octahedral geometry. A tetranuclear [Pd<inf>4</inf>(μ-pchcbe)<inf>4</inf>]·4H<inf>2</inf>O complex (8) has also been prepared by the reaction of Hpchcbe with PdCl<inf>2</inf>, which has a square planar geometry around each Pd(II) centre. An interesting feature of the Pd(II) complex is the formation of an eight membered twisted boat-like arrangement of alternate palladium and sulfur atoms, with Pd-Pd distances of 3.317(5) and 3.280(5) Ã…. In [Pd<inf>4</inf>(μ-pchcbe)<inf>4</inf>]·4H<inf>2</inf>O, the ligand behaves as NN(μ-S) dinegative tetradentate, whereas in the Zn(II) and Mn(II) complexes it acts as mononegative NNS tridentate. The thermal degradation of complexes 4 and 8 has been investigated by TGA, which indicates that the final residues are CuS and PdS, respectively. © 2015 Elsevier Ltd. © 2015 Elsevier Ltd. All rights reserved.
Citation: Polyhedron (2015), 97(): 215-226
URI: https://doi.org/10.1016/j.poly.2015.05.015
http://repository.iitr.ac.in/handle/123456789/4077
Issue Date: 2015
Publisher: Elsevier Ltd
Keywords: Bisbenzyl ester
Copper(II) complexes
NN(μ-S) tetradentate
NNS tridentate
Tetranuclear complexes
ISSN: 2775387
Author Scopus IDs: 54980986400
57204459843
14065956900
35412427900
26537562100
57203181883
7201947292
Author Affiliations: Bharati, P., Department of Chemistry, Banaras Hindu University, Varanasi, 221005, India
Bharti, A., Department of Chemistry, Kirori Mal College, University of Delhi, Delhi, 110007, India
Bharty, M.K., Department of Chemistry, Banaras Hindu University, Varanasi, 221005, India
Singh, N.K., Department of Chemistry, Banaras Hindu University, Varanasi, 221005, India
Kashyap, S., Department of Chemistry, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
Singh, U.P., Department of Chemistry, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
Butcher, R.J., Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, United States
Funding Details: One of the authors (P. Bharati) thanks CSIR – India for the award of a SRF. Dr. M.K. Bharty is thankful to the Department of Science and Technology, New Delhi, India for the award of a Young Scientist Project (No. SR/FT/CS-63/2011). Appendix A
Corresponding Author: Bharati, P.; Department of Chemistry, Banaras Hindu UniversityIndia
Appears in Collections:Journal Publications [CY]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.