Synthesis, characterization and emission study of zinc(II) and cobalt(II) complexes: Bis(bidentate) iminophenols as zinc(II) selective fluorescence probes

Biswarup Chakraborty; Partha Halder; Sourav Chakraborty; Oindrila Das; Sayantan Paria

doi:10.1016/j.ica.2012.02.024

Synthesis, characterization and emission study of zinc(II) and cobalt(II) complexes: Bis(bidentate) iminophenols as zinc(II) selective fluorescence probes

Biswarup Chakraborty
, Partha Halder
, Sourav Chakraborty
, Oindrila Das
, Sayantan Paria

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

Two zinc(II) complexes, [Zn ^II ₂(L ¹) ₂] (1) and [Zn ^II ₂(L ²) ₂] (2), and two cobalt(II) complexes, [Co ^II ₂(L ¹) ₂] (3) and [Co ^II ₂(L ²) ₂] (4), (H ₂L ¹ = iminophenol derived from the condensation of 4-aminobenzylamine and salicyldehyde, H ₂L ² = Schiff-base of 4-aminobenzylamine and 3,5-di-tert-butylsalicyldehyde) supported by bis(N,O-bidentate) ligands have been synthesized and characterized. X-ray single crystal structures of 3 and 4 revealed the dimeric nature of the complexes with a 1:1 ratio of metal and ligand. The zinc(II) complexes have a very similar composition as established from different analytical and spectroscopic techniques. The iminophenols exhibit highly selective fluorescence enhancement with high quantum yield upon binding with Zn ²⁺ in solution. A 50-fold enhancement of emission in zinc(II) complexes is observed with respect to free iminophenols.

Original language	English
Pages (from-to)	332-337
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	387
DOIs	https://doi.org/10.1016/j.ica.2012.02.024
State	Published - 30 May 2012
Externally published	Yes

Keywords

Cobalt
Fluorescence
Iminophenol
Solid state structures
Zinc

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.ica.2012.02.024

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@article{efe94d560fa84e848b61c40eff53d04f,

title = "Synthesis, characterization and emission study of zinc(II) and cobalt(II) complexes: Bis(bidentate) iminophenols as zinc(II) selective fluorescence probes",

abstract = "Two zinc(II) complexes, [Zn II 2(L 1) 2] (1) and [Zn II 2(L 2) 2] (2), and two cobalt(II) complexes, [Co II 2(L 1) 2] (3) and [Co II 2(L 2) 2] (4), (H 2L 1 = iminophenol derived from the condensation of 4-aminobenzylamine and salicyldehyde, H 2L 2 = Schiff-base of 4-aminobenzylamine and 3,5-di-tert-butylsalicyldehyde) supported by bis(N,O-bidentate) ligands have been synthesized and characterized. X-ray single crystal structures of 3 and 4 revealed the dimeric nature of the complexes with a 1:1 ratio of metal and ligand. The zinc(II) complexes have a very similar composition as established from different analytical and spectroscopic techniques. The iminophenols exhibit highly selective fluorescence enhancement with high quantum yield upon binding with Zn 2+ in solution. A 50-fold enhancement of emission in zinc(II) complexes is observed with respect to free iminophenols.",

keywords = "Cobalt, Fluorescence, Iminophenol, Solid state structures, Zinc",

author = "Biswarup Chakraborty and Partha Halder and Sourav Chakraborty and Oindrila Das and Sayantan Paria",

year = "2012",

month = may,

day = "30",

doi = "10.1016/j.ica.2012.02.024",

language = "English",

volume = "387",

pages = "332--337",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Synthesis, characterization and emission study of zinc(II) and cobalt(II) complexes

T2 - Bis(bidentate) iminophenols as zinc(II) selective fluorescence probes

AU - Chakraborty, Biswarup

AU - Halder, Partha

AU - Chakraborty, Sourav

AU - Das, Oindrila

AU - Paria, Sayantan

PY - 2012/5/30

Y1 - 2012/5/30

N2 - Two zinc(II) complexes, [Zn II 2(L 1) 2] (1) and [Zn II 2(L 2) 2] (2), and two cobalt(II) complexes, [Co II 2(L 1) 2] (3) and [Co II 2(L 2) 2] (4), (H 2L 1 = iminophenol derived from the condensation of 4-aminobenzylamine and salicyldehyde, H 2L 2 = Schiff-base of 4-aminobenzylamine and 3,5-di-tert-butylsalicyldehyde) supported by bis(N,O-bidentate) ligands have been synthesized and characterized. X-ray single crystal structures of 3 and 4 revealed the dimeric nature of the complexes with a 1:1 ratio of metal and ligand. The zinc(II) complexes have a very similar composition as established from different analytical and spectroscopic techniques. The iminophenols exhibit highly selective fluorescence enhancement with high quantum yield upon binding with Zn 2+ in solution. A 50-fold enhancement of emission in zinc(II) complexes is observed with respect to free iminophenols.

AB - Two zinc(II) complexes, [Zn II 2(L 1) 2] (1) and [Zn II 2(L 2) 2] (2), and two cobalt(II) complexes, [Co II 2(L 1) 2] (3) and [Co II 2(L 2) 2] (4), (H 2L 1 = iminophenol derived from the condensation of 4-aminobenzylamine and salicyldehyde, H 2L 2 = Schiff-base of 4-aminobenzylamine and 3,5-di-tert-butylsalicyldehyde) supported by bis(N,O-bidentate) ligands have been synthesized and characterized. X-ray single crystal structures of 3 and 4 revealed the dimeric nature of the complexes with a 1:1 ratio of metal and ligand. The zinc(II) complexes have a very similar composition as established from different analytical and spectroscopic techniques. The iminophenols exhibit highly selective fluorescence enhancement with high quantum yield upon binding with Zn 2+ in solution. A 50-fold enhancement of emission in zinc(II) complexes is observed with respect to free iminophenols.

KW - Cobalt

KW - Fluorescence

KW - Iminophenol

KW - Solid state structures

KW - Zinc

UR - https://www.scopus.com/pages/publications/84860277804

U2 - 10.1016/j.ica.2012.02.024

DO - 10.1016/j.ica.2012.02.024

M3 - Article

AN - SCOPUS:84860277804

SN - 0020-1693

VL - 387

SP - 332

EP - 337

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Synthesis, characterization and emission study of zinc(II) and cobalt(II) complexes: Bis(bidentate) iminophenols as zinc(II) selective fluorescence probes

Abstract

Keywords

ASJC Scopus subject areas

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