A study of [Au(ethylenediamine)Cl2]Cl interaction with L-methionine and DL-seleno-methionine by 1H and 13C NMR spectroscopy

Bassem A. Al-Maythalony; Mohamed I.M. Wazeer; Anvarhusein A. Isab; Saeed Ahmad

doi:10.3233/SPE-2010-0478

A study of [Au(ethylenediamine)Cl₂]Cl interaction with L-methionine and DL-seleno-methionine by ¹H and ¹³C NMR spectroscopy

Bassem A. Al-Maythalony
, Mohamed I.M. Wazeer
, Anvarhusein A. Isab
, Saeed Ahmad

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

6 Scopus citations

Abstract

The interaction of [Au(en)Cl₂]Cl with L-methionine (Met) and DL-seleno-methionine (Se-Met) was carried out in D₂O solution at ∼pH 3.8. ¹³C NMR spectra were interpreted by comparison with the spectra recorded after the reaction of Met or Se-Met with HAuCl₄ and also after oxidation by H₂O₂. Reactions of [Au(en)Cl ₂]Cl with Met and Se-Met were found to proceed through the exchange of chloride ligands from complex with Met or Se-Met. Gold(III) reduction takes place during the reaction and en ligand was released from [Au(en)Cl ₂]Cl complex.

Original language	English
Pages (from-to)	567-575
Number of pages	9
Journal	Spectroscopy
Volume	24
Issue number	5
DOIs	https://doi.org/10.3233/SPE-2010-0478
State	Published - 2010

Keywords

DL-seleno-methionine
L-methionine
NMR spectroscopy

ASJC Scopus subject areas

Spectroscopy

Access to Document

10.3233/SPE-2010-0478

Cite this

@article{238ef602362b40dc8f06f9b0137965ca,

title = "A study of [Au(ethylenediamine)Cl2]Cl interaction with L-methionine and DL-seleno-methionine by 1H and 13C NMR spectroscopy",

abstract = "The interaction of [Au(en)Cl2]Cl with L-methionine (Met) and DL-seleno-methionine (Se-Met) was carried out in D2O solution at ∼pH 3.8. 13C NMR spectra were interpreted by comparison with the spectra recorded after the reaction of Met or Se-Met with HAuCl4 and also after oxidation by H2O2. Reactions of [Au(en)Cl 2]Cl with Met and Se-Met were found to proceed through the exchange of chloride ligands from complex with Met or Se-Met. Gold(III) reduction takes place during the reaction and en ligand was released from [Au(en)Cl 2]Cl complex.",

keywords = "DL-seleno-methionine, L-methionine, NMR spectroscopy",

author = "Al-Maythalony, \{Bassem A.\} and Wazeer, \{Mohamed I.M.\} and Isab, \{Anvarhusein A.\} and Saeed Ahmad",

year = "2010",

doi = "10.3233/SPE-2010-0478",

language = "English",

volume = "24",

pages = "567--575",

journal = "Spectroscopy",

issn = "0712-4813",

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T1 - A study of [Au(ethylenediamine)Cl2]Cl interaction with L-methionine and DL-seleno-methionine by 1H and 13C NMR spectroscopy

AU - Al-Maythalony, Bassem A.

AU - Wazeer, Mohamed I.M.

AU - Isab, Anvarhusein A.

AU - Ahmad, Saeed

PY - 2010

Y1 - 2010

N2 - The interaction of [Au(en)Cl2]Cl with L-methionine (Met) and DL-seleno-methionine (Se-Met) was carried out in D2O solution at ∼pH 3.8. 13C NMR spectra were interpreted by comparison with the spectra recorded after the reaction of Met or Se-Met with HAuCl4 and also after oxidation by H2O2. Reactions of [Au(en)Cl 2]Cl with Met and Se-Met were found to proceed through the exchange of chloride ligands from complex with Met or Se-Met. Gold(III) reduction takes place during the reaction and en ligand was released from [Au(en)Cl 2]Cl complex.

AB - The interaction of [Au(en)Cl2]Cl with L-methionine (Met) and DL-seleno-methionine (Se-Met) was carried out in D2O solution at ∼pH 3.8. 13C NMR spectra were interpreted by comparison with the spectra recorded after the reaction of Met or Se-Met with HAuCl4 and also after oxidation by H2O2. Reactions of [Au(en)Cl 2]Cl with Met and Se-Met were found to proceed through the exchange of chloride ligands from complex with Met or Se-Met. Gold(III) reduction takes place during the reaction and en ligand was released from [Au(en)Cl 2]Cl complex.

KW - DL-seleno-methionine

KW - L-methionine

KW - NMR spectroscopy

UR - https://www.scopus.com/pages/publications/78650453759

U2 - 10.3233/SPE-2010-0478

DO - 10.3233/SPE-2010-0478

M3 - Article

AN - SCOPUS:78650453759

SN - 0712-4813

VL - 24

SP - 567

EP - 575

JO - Spectroscopy

JF - Spectroscopy

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