New Cu(II) complexes with polydentate chelating Schiff base ligands: Synthesis, structures, characterisations and biochemical activity studies

Brajagopal Samanta, Joy Chakraborty, Chirantan Roy Choudhury, S K Dey, D K Dey, Stuart Robert Batten, Paul Jensen, Glen P A Yap, Samiran Mitra

Research output: Contribution to journalArticleResearchpeer-review

71 Citations (Scopus)

Abstract

We have reported herein the synthesis of three new Cu(II) complexes of tri- and tetradentate Schiff base ligands containing N-3 or N-4 donor set along with terminal NNN- or SCN- ligands: [(LCu)-Cu-1(NCS)]ClO4 (1), [(LCu)-Cu-2 (NCS)(2)] (2) and [(LCu)-Cu-3(NNN)]ClO4 (3) [L-1 = NC5H4C (CH3)=N(CH2)(3)N=C(CH3)C5H4N, L-2 = Me2N-(CH2)(3)-N=C(CH3)C5H4N and L-3 = NC5H4CH=N-(CH2)(4)-N=CHC5H4N]. The complexes have been systematically characterised by elemental, spectroscopic and electrochemical techniques. Antimicrobial activities of the Schiff base ligands. and their metal complexes have been studied using the disc diffusion method on the strains of Candida tropicalis and Bacillus megaterium. Structures of all the complexes have been unequivocally established from single crystal X-ray diffraction analyses that show the monomeric units containing a five-coordinated copper center in highly distorted square pyramidal geometry with thiocyanate or azide anion coordinated as terminal ligand. The complexes 1 and 3 crystallise in monoclinic (P2(1)/c) and 2 in triclinic (P-1) space group, respectively.
Original languageEnglish
Pages (from-to)33 - 41
Number of pages9
JournalStructural Chemistry
Volume18
Issue number1
Publication statusPublished - 2007

Cite this

Samanta, Brajagopal ; Chakraborty, Joy ; Choudhury, Chirantan Roy ; Dey, S K ; Dey, D K ; Batten, Stuart Robert ; Jensen, Paul ; Yap, Glen P A ; Mitra, Samiran. / New Cu(II) complexes with polydentate chelating Schiff base ligands: Synthesis, structures, characterisations and biochemical activity studies. In: Structural Chemistry. 2007 ; Vol. 18, No. 1. pp. 33 - 41.
@article{fbfe80daef784ddc9ceb7b503ef1e688,
title = "New Cu(II) complexes with polydentate chelating Schiff base ligands: Synthesis, structures, characterisations and biochemical activity studies",
abstract = "We have reported herein the synthesis of three new Cu(II) complexes of tri- and tetradentate Schiff base ligands containing N-3 or N-4 donor set along with terminal NNN- or SCN- ligands: [(LCu)-Cu-1(NCS)]ClO4 (1), [(LCu)-Cu-2 (NCS)(2)] (2) and [(LCu)-Cu-3(NNN)]ClO4 (3) [L-1 = NC5H4C (CH3)=N(CH2)(3)N=C(CH3)C5H4N, L-2 = Me2N-(CH2)(3)-N=C(CH3)C5H4N and L-3 = NC5H4CH=N-(CH2)(4)-N=CHC5H4N]. The complexes have been systematically characterised by elemental, spectroscopic and electrochemical techniques. Antimicrobial activities of the Schiff base ligands. and their metal complexes have been studied using the disc diffusion method on the strains of Candida tropicalis and Bacillus megaterium. Structures of all the complexes have been unequivocally established from single crystal X-ray diffraction analyses that show the monomeric units containing a five-coordinated copper center in highly distorted square pyramidal geometry with thiocyanate or azide anion coordinated as terminal ligand. The complexes 1 and 3 crystallise in monoclinic (P2(1)/c) and 2 in triclinic (P-1) space group, respectively.",
author = "Brajagopal Samanta and Joy Chakraborty and Choudhury, {Chirantan Roy} and Dey, {S K} and Dey, {D K} and Batten, {Stuart Robert} and Paul Jensen and Yap, {Glen P A} and Samiran Mitra",
year = "2007",
language = "English",
volume = "18",
pages = "33 -- 41",
journal = "Structural Chemistry",
issn = "1040-0400",
publisher = "Springer",
number = "1",

}

Samanta, B, Chakraborty, J, Choudhury, CR, Dey, SK, Dey, DK, Batten, SR, Jensen, P, Yap, GPA & Mitra, S 2007, 'New Cu(II) complexes with polydentate chelating Schiff base ligands: Synthesis, structures, characterisations and biochemical activity studies', Structural Chemistry, vol. 18, no. 1, pp. 33 - 41.

New Cu(II) complexes with polydentate chelating Schiff base ligands: Synthesis, structures, characterisations and biochemical activity studies. / Samanta, Brajagopal; Chakraborty, Joy; Choudhury, Chirantan Roy; Dey, S K; Dey, D K; Batten, Stuart Robert; Jensen, Paul; Yap, Glen P A; Mitra, Samiran.

In: Structural Chemistry, Vol. 18, No. 1, 2007, p. 33 - 41.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - New Cu(II) complexes with polydentate chelating Schiff base ligands: Synthesis, structures, characterisations and biochemical activity studies

AU - Samanta, Brajagopal

AU - Chakraborty, Joy

AU - Choudhury, Chirantan Roy

AU - Dey, S K

AU - Dey, D K

AU - Batten, Stuart Robert

AU - Jensen, Paul

AU - Yap, Glen P A

AU - Mitra, Samiran

PY - 2007

Y1 - 2007

N2 - We have reported herein the synthesis of three new Cu(II) complexes of tri- and tetradentate Schiff base ligands containing N-3 or N-4 donor set along with terminal NNN- or SCN- ligands: [(LCu)-Cu-1(NCS)]ClO4 (1), [(LCu)-Cu-2 (NCS)(2)] (2) and [(LCu)-Cu-3(NNN)]ClO4 (3) [L-1 = NC5H4C (CH3)=N(CH2)(3)N=C(CH3)C5H4N, L-2 = Me2N-(CH2)(3)-N=C(CH3)C5H4N and L-3 = NC5H4CH=N-(CH2)(4)-N=CHC5H4N]. The complexes have been systematically characterised by elemental, spectroscopic and electrochemical techniques. Antimicrobial activities of the Schiff base ligands. and their metal complexes have been studied using the disc diffusion method on the strains of Candida tropicalis and Bacillus megaterium. Structures of all the complexes have been unequivocally established from single crystal X-ray diffraction analyses that show the monomeric units containing a five-coordinated copper center in highly distorted square pyramidal geometry with thiocyanate or azide anion coordinated as terminal ligand. The complexes 1 and 3 crystallise in monoclinic (P2(1)/c) and 2 in triclinic (P-1) space group, respectively.

AB - We have reported herein the synthesis of three new Cu(II) complexes of tri- and tetradentate Schiff base ligands containing N-3 or N-4 donor set along with terminal NNN- or SCN- ligands: [(LCu)-Cu-1(NCS)]ClO4 (1), [(LCu)-Cu-2 (NCS)(2)] (2) and [(LCu)-Cu-3(NNN)]ClO4 (3) [L-1 = NC5H4C (CH3)=N(CH2)(3)N=C(CH3)C5H4N, L-2 = Me2N-(CH2)(3)-N=C(CH3)C5H4N and L-3 = NC5H4CH=N-(CH2)(4)-N=CHC5H4N]. The complexes have been systematically characterised by elemental, spectroscopic and electrochemical techniques. Antimicrobial activities of the Schiff base ligands. and their metal complexes have been studied using the disc diffusion method on the strains of Candida tropicalis and Bacillus megaterium. Structures of all the complexes have been unequivocally established from single crystal X-ray diffraction analyses that show the monomeric units containing a five-coordinated copper center in highly distorted square pyramidal geometry with thiocyanate or azide anion coordinated as terminal ligand. The complexes 1 and 3 crystallise in monoclinic (P2(1)/c) and 2 in triclinic (P-1) space group, respectively.

UR - http://<Go to ISI>://000244148100006

M3 - Article

VL - 18

SP - 33

EP - 41

JO - Structural Chemistry

JF - Structural Chemistry

SN - 1040-0400

IS - 1

ER -