Complexations of Hg(CN)2 with imidazolidine-2-thione and its derivatives: Solid state, solution NMR and antimicrobial activity studies

Mohamed I.M. Wazeer; Anvarhusein A. Isab

doi:10.1016/j.saa.2007.01.022

Complexations of Hg(CN)₂ with imidazolidine-2-thione and its derivatives: Solid state, solution NMR and antimicrobial activity studies

Mohamed I.M. Wazeer^*, Anvarhusein A. Isab

^*Corresponding author for this work

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

34 Scopus citations

Abstract

The preparation and characterization of new mercuric complexes of formula L₂Hg(CN)₂ with L being imidazolidine-2-thione (Imt) and its substituted derivatives, 1,3-diazinane-2-thione (Diaz), 1,3-diazipane-2-thione (Diap), are described. The solution and solid-state ¹³C NMR show a significant shift of the {2 bonds on left}C{double bond, long}S carbon resonance of the ligands, while the other resonances are relatively unaffected, indicating that most likely the solid-state structure is maintained in solution as well. The principal components of the ¹⁹⁹Hg shielding tensors were determined from solid-state NMR data. Antimicrobial activity studies of the free ligands and their complexes show that ligands exhibit substantial antibacterial activities compare to their Hg(II) complexes.

Original language	English
Pages (from-to)	1207-1212
Number of pages	6
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	68
Issue number	5
DOIs	https://doi.org/10.1016/j.saa.2007.01.022
State	Published - 31 Dec 2007

Bibliographical note

Funding Information:
We gratefully acknowledge King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia for the financial support through research project no. CY/NMR STUDY/277 and SABIC-2006-08.

Keywords

Antibacterial activity
CP MAS NMR
Imidazolidine-2-thione
Mercuric cyanide complexes

ASJC Scopus subject areas

Analytical Chemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Spectroscopy

Access to Document

10.1016/j.saa.2007.01.022

Cite this

@article{83ac253e08ac4649bbcd84076736ffed,

title = "Complexations of Hg(CN)2 with imidazolidine-2-thione and its derivatives: Solid state, solution NMR and antimicrobial activity studies",

abstract = "The preparation and characterization of new mercuric complexes of formula L2Hg(CN)2 with L being imidazolidine-2-thione (Imt) and its substituted derivatives, 1,3-diazinane-2-thione (Diaz), 1,3-diazipane-2-thione (Diap), are described. The solution and solid-state 13C NMR show a significant shift of the \{2 bonds on left\}C\{double bond, long\}S carbon resonance of the ligands, while the other resonances are relatively unaffected, indicating that most likely the solid-state structure is maintained in solution as well. The principal components of the 199Hg shielding tensors were determined from solid-state NMR data. Antimicrobial activity studies of the free ligands and their complexes show that ligands exhibit substantial antibacterial activities compare to their Hg(II) complexes.",

keywords = "Antibacterial activity, CP MAS NMR, Imidazolidine-2-thione, Mercuric cyanide complexes",

author = "Wazeer, \{Mohamed I.M.\} and Isab, \{Anvarhusein A.\}",

note = "Funding Information: We gratefully acknowledge King Fahd University of Petroleum \& Minerals, Dhahran, Saudi Arabia for the financial support through research project no. CY/NMR STUDY/277 and SABIC-2006-08.",

year = "2007",

month = dec,

day = "31",

doi = "10.1016/j.saa.2007.01.022",

language = "English",

volume = "68",

pages = "1207--1212",

journal = "Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy",

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T1 - Complexations of Hg(CN)2 with imidazolidine-2-thione and its derivatives

T2 - Solid state, solution NMR and antimicrobial activity studies

AU - Wazeer, Mohamed I.M.

AU - Isab, Anvarhusein A.

N1 - Funding Information: We gratefully acknowledge King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia for the financial support through research project no. CY/NMR STUDY/277 and SABIC-2006-08.

PY - 2007/12/31

Y1 - 2007/12/31

N2 - The preparation and characterization of new mercuric complexes of formula L2Hg(CN)2 with L being imidazolidine-2-thione (Imt) and its substituted derivatives, 1,3-diazinane-2-thione (Diaz), 1,3-diazipane-2-thione (Diap), are described. The solution and solid-state 13C NMR show a significant shift of the {2 bonds on left}C{double bond, long}S carbon resonance of the ligands, while the other resonances are relatively unaffected, indicating that most likely the solid-state structure is maintained in solution as well. The principal components of the 199Hg shielding tensors were determined from solid-state NMR data. Antimicrobial activity studies of the free ligands and their complexes show that ligands exhibit substantial antibacterial activities compare to their Hg(II) complexes.

AB - The preparation and characterization of new mercuric complexes of formula L2Hg(CN)2 with L being imidazolidine-2-thione (Imt) and its substituted derivatives, 1,3-diazinane-2-thione (Diaz), 1,3-diazipane-2-thione (Diap), are described. The solution and solid-state 13C NMR show a significant shift of the {2 bonds on left}C{double bond, long}S carbon resonance of the ligands, while the other resonances are relatively unaffected, indicating that most likely the solid-state structure is maintained in solution as well. The principal components of the 199Hg shielding tensors were determined from solid-state NMR data. Antimicrobial activity studies of the free ligands and their complexes show that ligands exhibit substantial antibacterial activities compare to their Hg(II) complexes.

KW - Antibacterial activity

KW - CP MAS NMR

KW - Imidazolidine-2-thione

KW - Mercuric cyanide complexes

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U2 - 10.1016/j.saa.2007.01.022

DO - 10.1016/j.saa.2007.01.022

M3 - Article

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AN - SCOPUS:36348935450

SN - 1386-1425

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JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

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