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7024

POTENTIOMETRIC AND SPECTROSCOPIC STUDIES OF NICKEL(II), COPPER(II) AND ZINC(II) COMPLEXES WITH SALICILIDEN 2-AMINOTHIAZOLE

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Last updated: 03 Jan 2025

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Chemistry

Abstract

Metal complexes of the divalent ions Ni, Cu and Zn with a Schiff base obtained through condensation of salicylaldehyde with 2-aminothiazole has been investigated potentiomerically and spectrophotometrivally. The stoichiometric formula of the obtained complexes are: Ni(SAT)2, Cu(SAT)2 and Zn(SAT) where: SAT = saliciliden 2-aminothiazole. The formation constants of proton-ligand and metal-ligand complexes have been determined at 25 oC and 0.1 M (NaClO4) ionic strength in 50% (V/V) ethanol - water solution. The formation constants values obtained from spectrophotometric studies are found to be consistent with those obtained from potentiometric studies. The complexation reaction in the systems investigated were demonstrated and characterized using graphical logarithmic analysis of the absorbance versus pH graph. The binary systems obeyed beer's law up to 0.21, 0.19 and 0.24 µg/ml and the molar absorptivity ɛ = 3.12 x 103, 2.16 x 103 3.80 x 103 l mol-1 cm-1 for Ni2+, Cu2+ and Zn2+ respectively.

DOI

10.21608/absb.2011.7024

Keywords

Nickel(II), Copper(II) and Zinc(II), Schiffbase, Stability constants, Stoichiometry, POTENTIOMETRIC TITRATIONS, spectrophotometric study

Authors

First Name

MAHMOUD

Last Name

MOUSTAFA

MiddleName

H.

Affiliation

Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, Egypt

Email

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City

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Orcid

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First Name

ABED ELHALEEM

Last Name

HESSEEN

MiddleName

M.

Affiliation

Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, Egypt

Email

-

City

-

Orcid

-

First Name

MOUSTAFA

Last Name

HASSAN

MiddleName

K.

Affiliation

Department of Chemistry, Faculty of Science, Assiut University, Assiut, Egypt

Email

-

City

-

Orcid

-

First Name

EHAB

Last Name

ABED ALLAHA

MiddleName

M.

Affiliation

Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, Egypt

Email

-

City

-

Orcid

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Volume

22

Article Issue

Issue 2-A

Related Issue

1329

Issue Date

2011-12-01

Receive Date

2012-07-02

Publish Date

2011-12-01

Page Start

153

Page End

164

Print ISSN

1110-2535

Online ISSN

2636-3305

Article File

ABSB_Volume 22_Issue Issue 2-A_Pages 153-164.pdf

PDF . 534.9kB

Link

https://absb.journals.ekb.eg/article_7024.html

Detail API

https://absb.journals.ekb.eg/service?article_code=7024

Order

13

Type

Original Article

Type Code

520

Publication Type

Journal

Publication Title

Al-Azhar Bulletin of Science

Publication Link

https://absb.journals.ekb.eg/

MainTitle

POTENTIOMETRIC AND SPECTROSCOPIC STUDIES OF NICKEL(II), COPPER(II) AND ZINC(II) COMPLEXES WITH SALICILIDEN 2-AMINOTHIAZOLE

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Type

Article

Created At

22 Jan 2023