Synthesis and characterization of mercury(II) complexes of selones: X-ray structures, CP MAS and solution NMR studies

Anvarhusein A. Isab; Mohammed I.M. Wazeer; Mohammed Fettouhi; Saeed Ahmad; Waqar Ashraf

doi:10.1016/j.poly.2006.03.022

Synthesis and characterization of mercury(II) complexes of selones: X-ray structures, CP MAS and solution NMR studies

Anvarhusein A. Isab^*, Mohammed I.M. Wazeer, Mohammed Fettouhi, Saeed Ahmad, Waqar Ashraf

^*Corresponding author for this work

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

29 Scopus citations

Abstract

Mercury(II) complexes of selones (L) having the general formulae, [L₂HgCl₂], [L₃HgCl]Cl and [L₄Hg]Cl₂ have been prepared and characterized by elemental analysis, IR and NMR (¹H, ¹³C, ¹⁵N, ⁷⁷Se, ¹⁹⁹Hg) spectroscopy. A decrease in the IR frequency of the {2 bonds on left}C{double bond, long}Se mode upon complexation is indicative of mercury(II) binding via a selone group. Upfield shifts in {2 bonds on left}C{double bond, long}Se resonance of selones in ¹³C and ⁷⁷Se NMR and downfield shifts in N{single bond}H resonances in ¹H and ¹⁵N NMR are consistent with the selenium coordination to mercury(II). The complex of dichloro-bis(N-isopropyl-imidazolidine-2-selone-S)mercury(II), has been characterized by X-ray crystal analysis. The principal components of the ⁷⁷Se and ¹⁹⁹Hg shielding tensors were determined from solid-state NMR data.

Original language	English
Pages (from-to)	2629-2636
Number of pages	8
Journal	Polyhedron
Volume	25
Issue number	13
DOIs	https://doi.org/10.1016/j.poly.2006.03.022
State	Published - 11 Sep 2006

Bibliographical note

Funding Information:
This research was supported by the KFUPM Research Committee under project no. CY/NMR-STUDIES/277.

Keywords

CP MAS NMR studies
Crystal structure
Mercury(II) complexes
Selones

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.poly.2006.03.022

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@article{23c9cfc910464fe68d7ba4eed60efab1,

title = "Synthesis and characterization of mercury(II) complexes of selones: X-ray structures, CP MAS and solution NMR studies",

abstract = "Mercury(II) complexes of selones (L) having the general formulae, [L2HgCl2], [L3HgCl]Cl and [L4Hg]Cl2 have been prepared and characterized by elemental analysis, IR and NMR (1H, 13C, 15N, 77Se, 199Hg) spectroscopy. A decrease in the IR frequency of the \{2 bonds on left\}C\{double bond, long\}Se mode upon complexation is indicative of mercury(II) binding via a selone group. Upfield shifts in \{2 bonds on left\}C\{double bond, long\}Se resonance of selones in 13C and 77Se NMR and downfield shifts in N\{single bond\}H resonances in 1H and 15N NMR are consistent with the selenium coordination to mercury(II). The complex of dichloro-bis(N-isopropyl-imidazolidine-2-selone-S)mercury(II), has been characterized by X-ray crystal analysis. The principal components of the 77Se and 199Hg shielding tensors were determined from solid-state NMR data.",

keywords = "CP MAS NMR studies, Crystal structure, Mercury(II) complexes, Selones",

author = "Isab, \{Anvarhusein A.\} and Wazeer, \{Mohammed I.M.\} and Mohammed Fettouhi and Saeed Ahmad and Waqar Ashraf",

note = "Funding Information: This research was supported by the KFUPM Research Committee under project no. CY/NMR-STUDIES/277. ",

year = "2006",

month = sep,

day = "11",

doi = "10.1016/j.poly.2006.03.022",

language = "English",

volume = "25",

pages = "2629--2636",

journal = "Polyhedron",

issn = "0277-5387",

number = "13",

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TY - JOUR

T1 - Synthesis and characterization of mercury(II) complexes of selones

T2 - X-ray structures, CP MAS and solution NMR studies

AU - Isab, Anvarhusein A.

AU - Wazeer, Mohammed I.M.

AU - Fettouhi, Mohammed

AU - Ahmad, Saeed

AU - Ashraf, Waqar

N1 - Funding Information: This research was supported by the KFUPM Research Committee under project no. CY/NMR-STUDIES/277.

PY - 2006/9/11

Y1 - 2006/9/11

N2 - Mercury(II) complexes of selones (L) having the general formulae, [L2HgCl2], [L3HgCl]Cl and [L4Hg]Cl2 have been prepared and characterized by elemental analysis, IR and NMR (1H, 13C, 15N, 77Se, 199Hg) spectroscopy. A decrease in the IR frequency of the {2 bonds on left}C{double bond, long}Se mode upon complexation is indicative of mercury(II) binding via a selone group. Upfield shifts in {2 bonds on left}C{double bond, long}Se resonance of selones in 13C and 77Se NMR and downfield shifts in N{single bond}H resonances in 1H and 15N NMR are consistent with the selenium coordination to mercury(II). The complex of dichloro-bis(N-isopropyl-imidazolidine-2-selone-S)mercury(II), has been characterized by X-ray crystal analysis. The principal components of the 77Se and 199Hg shielding tensors were determined from solid-state NMR data.

AB - Mercury(II) complexes of selones (L) having the general formulae, [L2HgCl2], [L3HgCl]Cl and [L4Hg]Cl2 have been prepared and characterized by elemental analysis, IR and NMR (1H, 13C, 15N, 77Se, 199Hg) spectroscopy. A decrease in the IR frequency of the {2 bonds on left}C{double bond, long}Se mode upon complexation is indicative of mercury(II) binding via a selone group. Upfield shifts in {2 bonds on left}C{double bond, long}Se resonance of selones in 13C and 77Se NMR and downfield shifts in N{single bond}H resonances in 1H and 15N NMR are consistent with the selenium coordination to mercury(II). The complex of dichloro-bis(N-isopropyl-imidazolidine-2-selone-S)mercury(II), has been characterized by X-ray crystal analysis. The principal components of the 77Se and 199Hg shielding tensors were determined from solid-state NMR data.

KW - CP MAS NMR studies

KW - Crystal structure

KW - Mercury(II) complexes

KW - Selones

UR - https://www.scopus.com/pages/publications/33747378107

U2 - 10.1016/j.poly.2006.03.022

DO - 10.1016/j.poly.2006.03.022

M3 - Article

AN - SCOPUS:33747378107

SN - 0277-5387

VL - 25

SP - 2629

EP - 2636

JO - Polyhedron

JF - Polyhedron

IS - 13

ER -

Synthesis and characterization of mercury(II) complexes of selones: X-ray structures, CP MAS and solution NMR studies

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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