Mercury(II) complexes of heterocyclic thiones.

Popović, Zora; Pavlović, Gordána; Matković‐Čalogović, Dubravka; Soldin, Željka; Rajić, Maša; Vikić‐Topić, Dražen; Kovaček, Damir

doi:10.1016/s0020-1693(00)00162-6

Cited by 98 publications

(92 citation statements)

References 44 publications

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“…1, Table 1). The bond distances and bond angles are in agreement with those reported for related compounds (Ahmad et al, 2009;Altaf et al, 2010;Jiang et al, 2001;Lobana et al, 2008;Mufakkar et al, 2010;Nawaz et al, 2010;Popovic et al, 2000;Wu et al, 2004). The SCN 2 moiety of dmtu is planar [to within 0.002 (1) In the crystal packing of the title complex, symmetry-related molecules are connected via intermolecular N-H···N hydrogen bonds, involving the thiourea NH atoms and the N atom of the CN -anions (Fig.…”

Section: S1 Commentsupporting

confidence: 86%

“…For the biological applications of mercury(II) complexes of thiones, see: Akrivos (2001); Bell et al (2001); Popovic et al (2000). …”

Section: Related Literaturementioning

confidence: 99%

“…The structural characterization of mercury(II) complexes of thioamides is an important aspect of inorganic chemistry because such complexes can be used as models for metal-sulfur interactions in biological systems (Akrivos, 2001;Bell et al, 2001;Popovic et al, 2000). Several crystallographic reports about mercury(II) complexes of the type, L 2 HgX 2 (L = thiourea or its derivatives) reveal that these complexes usually consist of discrete monomeric molecules with tetrahedral (somewhat distorted) coordination environments around mercury(II) (Ahmad et al, 2009;Bell et al, 2001;Jiang et al, 2001;Lobana et al, 2008;Mufakkar et al, 2010;Nawaz et al, 2010;Popovic et al, 2000;Wu et al, 2004).…”

Section: S1 Commentmentioning

confidence: 99%

“…Several crystallographic reports about mercury(II) complexes of the type, L 2 HgX 2 (L = thiourea or its derivatives) reveal that these complexes usually consist of discrete monomeric molecules with tetrahedral (somewhat distorted) coordination environments around mercury(II) (Ahmad et al, 2009;Bell et al, 2001;Jiang et al, 2001;Lobana et al, 2008;Mufakkar et al, 2010;Nawaz et al, 2010;Popovic et al, 2000;Wu et al, 2004). Recently, we have reported the crystal structures of a number of cyanido complexes of d 10 metal ions with L-type ligands, including the crystal structure of a trinuclear complex, [{(tmtu) 2 Hg(CN) 2 } 2 .…”

Section: S1 Commentmentioning

confidence: 99%

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Dicyanidobis(N,N′-dimethythiourea-κS)mercury(II)

et al. 2010

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Key indicators: single-crystal X-ray study; T = 173 K; mean (N-C) = 0.008 Å; R factor = 0.017; wR factor = 0.036; data-to-parameter ratio = 16.5.In the title complex, [Hg(CN) 2 (C 3 H 8 N 2 S) 2 ], the Hg II atom is located on a twofold rotation axis. It is four-coordinate having an irregular tetrahedral geometry composed of two cyanide C atoms [Hg-C = 2.090 (6) Å ] and two thione S atoms of N,N 0 -dimethylthiourea (dmtu) [Hg-S = 2.7114 (9) Å ]. The NCHg-CN bond angle of 148.83 (13) has the greatest deviation from the ideal tetrahedral geometry. The molecular structure is stabilized by intramolecular N-HÁ Á ÁS interactions involving dmtu units related by the twofold symmetry. In the crystal, intermolecular N-HÁ Á ÁN(CN) hydrogen-bonding interactions link symmetry-related molecules into a twodimensional network in (110). Related literature

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Section: S1 Commentsupporting

confidence: 86%

“…For the biological applications of mercury(II) complexes of thiones, see: Akrivos (2001); Bell et al (2001); Popovic et al (2000). …”

Section: Related Literaturementioning

confidence: 99%

Section: S1 Commentmentioning

confidence: 99%

Section: S1 Commentmentioning

confidence: 99%

See 2 more Smart Citations

Dicyanidobis(N,N′-dimethythiourea-κS)mercury(II)

et al. 2010

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“…The interaction of mercury(II) with sulfur-containing molecules is an important area in bioinorganic chemistry because such studies provide models for naturally occurring sulfur-containing compounds [1][2][3][4][5][6][7][8][9][10]. The biological chemistry of mercury is dominated by coordination to cysteine thiolate groups in agreement with the preference of this metal ion for the soft sulfur ligands and a great deal of research has been conducted to understand how the amino acid interacts with metals [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, spectroscopic characterization and antimicrobial studies of mercury(II) complexes of thiolates

et al. 2009

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Abstract. Mercury(II) complexes of thiolates having the general formula [Hg(RS)Cl 2 ]− and [Hg(RS) 2 ] have been prepared and characterized by IR and NMR ( 1 H and 13 C) spectroscopy (RSH = 2-aminoethanethiol hydrochloride (Aet), cysteine (Cys), thiosalicylic acid (Ts) and 2-mercaptonicotinic acid (Mnt)). The spectral data suggests that the coordination of thiolates to mercury(II) occurs through the sulfur as indicated by the absence of S-H vibrations in IR and significant downfield shifts in the C-S resonance in 13 C NMR. However, in Mnt complexes, coordination through both sulfur and nitrogen is indicated. Antimicrobial activities of the complexes were evaluated by minimum inhibitory concentration and the results showed that the complexes exhibited a wide range of activities against gram-negative bacteria (E. coli, P. aeruginosa), while moderate activity was observed against a mold, P. citrinum.

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Mercury(II) Complexes with Heterocyclic Thiones − Preparation and Characterization of the 1:1 and 1:2 Mercury(II) Complexes with Benzo-1,3-imidazole-2-thione

Popović

Soldin

Matković‐Čalogović

et al. 2002

Eur. J. Inorg. Chem.

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A series of complexes HgX2(bzimtH2) and HgX2(bzimtH2)2 (X = Cl−, Br−, I−, SCN−; bzimtH2 = benzo‐1,3‐imidazole‐2‐thione) was obtained by reaction of the mercury(II) salts with benzo‐1,3‐imidazole‐2‐thione in the appropriate molar ratio (1:1 or 1:2). Hg(bzimtH)2 was obtained by the deprotonation of bzimtH2 with mercury(II) acetate (irrespective of the molar ratio of the reactants). The complexes were characterised by chemical and thermal analysis, IR, 1H, and 13C NMR spectroscopy, and some [HgX2(bzimtH2), X = I− and HgX2(bzimtH2)2, X = I− and SCN−] by X‐ray single crystal diffractometry. 1H and 13C NMR spectroscopic measurements in dimethyl sulphoxide revealed that the sulphur atom is coordinated to the mercury centre. The greatest complexation effects on the chemical shifts were observed for the thione carbon atom and thioamide proton. The crystal structures of HgI2(bzimtH2)2 and Hg(SCN)2(bzimtH2)2·C2H5OH consist of discrete monomeric molecules with halide or pseudohalide donor atoms and thione sulphur atoms tetrahedrally coordinated to the mercury atom. The structure of HgI2(bzimtH2) is polymeric with a trigonal bipyramidal 3 + 2 coordination geometry around the mercury atom. Polymerisation occurs through Hg···I interactions with neighbouring molecules. The distribution of the π‐electron density in bzimtH2 corresponds to the thioketo tautomeric form in the solid state, and also in the DMSO solution of the complexes. Intermolecular hydrogen bonds of the type N−H···N, N−H···S and N−H···I are observed.

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Mercury(II) complexes of heterocyclic thiones.

Cited by 98 publications

References 44 publications

Dicyanidobis(N,N′-dimethythiourea-κS)mercury(II)

Dicyanidobis(N,N′-dimethythiourea-κS)mercury(II)

Synthesis, spectroscopic characterization and antimicrobial studies of mercury(II) complexes of thiolates

Mercury(II) Complexes with Heterocyclic Thiones − Preparation and Characterization of the 1:1 and 1:2 Mercury(II) Complexes with Benzo-1,3-imidazole-2-thione

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