13C and 15N NMR studies of the interaction of gold(I) thiolates with thiourea (13C and 15N labelled)

Anvarhusein A. Isab; Saeed Ahmad; Abdul Rehman Al-Arfaj; Muhammad Naseem Akhtar

doi:10.1080/0095897021000041338

¹³C and ¹⁵N NMR studies of the interaction of gold(I) thiolates with thiourea (¹³C and ¹⁵N labelled)

Anvarhusein A. Isab^*
, Saeed Ahmad
, Abdul Rehman Al-Arfaj
, Muhammad Naseem Akhtar

^*Corresponding author for this work

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

5 Scopus citations

Abstract

The interaction of gold(I) thiomalate [(Autm)_n] and gold(I) thioglucose [(Autg)_n] with thiourea (Tu) has been studied using ¹³C and ¹⁵N NMR spectroscopy. It is observed that thiourea binds to (Autm)_n to form a ternary complex, Tu-Au-tm. An upfield shift of 2.6 ppm in the >C=S resonance of Tu in ¹³C NMR and a downfield shift of 1.0 ppm in ¹⁵N NMR are indicative of gold(I) binding with Tu through sulfur only. In the case of (Autg)_n, the >C=S resonance of Tu remains unchanged throughout the titration, suggesting that Tu could not break the (Autg)_n polymer completely. Imidazolidine-2-thione (Imt) also shows a weak interaction towards (Autg)_n, similar to that of Tu.

Original language	English
Pages (from-to)	95-101
Number of pages	7
Journal	Journal of Coordination Chemistry
Volume	56
Issue number	2
DOIs	https://doi.org/10.1080/0095897021000041338
State	Published - 20 Jan 2003

Bibliographical note

Funding Information:
This research was supported by the KFUPM Research Committee under project CY/NMR-STUDIES/214.

Keywords

Gold(I) thioglucose
Gold(I) thiomalate
NMR
Thione
Thiourea

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Materials Chemistry

Access to Document

10.1080/0095897021000041338

Cite this

@article{bc1dea6be7cf48a3ba96bddd3e39930d,

title = "13C and 15N NMR studies of the interaction of gold(I) thiolates with thiourea (13C and 15N labelled)",

abstract = "The interaction of gold(I) thiomalate [(Autm)n] and gold(I) thioglucose [(Autg)n] with thiourea (Tu) has been studied using 13C and 15N NMR spectroscopy. It is observed that thiourea binds to (Autm)n to form a ternary complex, Tu-Au-tm. An upfield shift of 2.6 ppm in the >C=S resonance of Tu in 13C NMR and a downfield shift of 1.0 ppm in 15N NMR are indicative of gold(I) binding with Tu through sulfur only. In the case of (Autg)n, the >C=S resonance of Tu remains unchanged throughout the titration, suggesting that Tu could not break the (Autg)n polymer completely. Imidazolidine-2-thione (Imt) also shows a weak interaction towards (Autg)n, similar to that of Tu.",

keywords = "Gold(I) thioglucose, Gold(I) thiomalate, NMR, Thione, Thiourea",

author = "Isab, \{Anvarhusein A.\} and Saeed Ahmad and Al-Arfaj, \{Abdul Rehman\} and Akhtar, \{Muhammad Naseem\}",

note = "Funding Information: This research was supported by the KFUPM Research Committee under project CY/NMR-STUDIES/214.",

year = "2003",

month = jan,

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T1 - 13C and 15N NMR studies of the interaction of gold(I) thiolates with thiourea (13C and 15N labelled)

AU - Isab, Anvarhusein A.

AU - Ahmad, Saeed

AU - Al-Arfaj, Abdul Rehman

AU - Akhtar, Muhammad Naseem

N1 - Funding Information: This research was supported by the KFUPM Research Committee under project CY/NMR-STUDIES/214.

PY - 2003/1/20

Y1 - 2003/1/20

N2 - The interaction of gold(I) thiomalate [(Autm)n] and gold(I) thioglucose [(Autg)n] with thiourea (Tu) has been studied using 13C and 15N NMR spectroscopy. It is observed that thiourea binds to (Autm)n to form a ternary complex, Tu-Au-tm. An upfield shift of 2.6 ppm in the >C=S resonance of Tu in 13C NMR and a downfield shift of 1.0 ppm in 15N NMR are indicative of gold(I) binding with Tu through sulfur only. In the case of (Autg)n, the >C=S resonance of Tu remains unchanged throughout the titration, suggesting that Tu could not break the (Autg)n polymer completely. Imidazolidine-2-thione (Imt) also shows a weak interaction towards (Autg)n, similar to that of Tu.

AB - The interaction of gold(I) thiomalate [(Autm)n] and gold(I) thioglucose [(Autg)n] with thiourea (Tu) has been studied using 13C and 15N NMR spectroscopy. It is observed that thiourea binds to (Autm)n to form a ternary complex, Tu-Au-tm. An upfield shift of 2.6 ppm in the >C=S resonance of Tu in 13C NMR and a downfield shift of 1.0 ppm in 15N NMR are indicative of gold(I) binding with Tu through sulfur only. In the case of (Autg)n, the >C=S resonance of Tu remains unchanged throughout the titration, suggesting that Tu could not break the (Autg)n polymer completely. Imidazolidine-2-thione (Imt) also shows a weak interaction towards (Autg)n, similar to that of Tu.

KW - Gold(I) thioglucose

KW - Gold(I) thiomalate

KW - NMR

KW - Thione

KW - Thiourea

UR - https://www.scopus.com/pages/publications/0037454584

U2 - 10.1080/0095897021000041338

DO - 10.1080/0095897021000041338

M3 - Article

AN - SCOPUS:0037454584

SN - 0095-8972

VL - 56

SP - 95

EP - 101

JO - Journal of Coordination Chemistry

JF - Journal of Coordination Chemistry

IS - 2

ER -