Linear coordination of Hg(II) by cysteamine

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

“…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].…”

“…Thiols combine with a mercury halide to form complicated clusters or polymeric structures containing Hg-S and in some cases Hg-X interactions [5][6][7][8]15,23,28]. Homoleptic thiolates of mercury(II) can be mononuclear (Hg(SR) 2 , Hg(SR) 3 , Hg(SR) 4 [33][34][35]. As an attempt to explore further the chemistry of mercury-thiolates, the present study describes the synthesis of mercury complexes with thiolates and their characterization by IR and NMR ( 1 H and 13 C) spectroscopic methods.…”

Solution behavior of Hg(II)-cystamine by Uv-Vis and199Hg NMR

“…Addition of HgCl 2 with cysta in a 1:2 ratio in DI water yields a polymeric structure with the repeating unit, [HgCl 4 (2) [12]. It was quite interesting to observe that in the presence of NaOH, compound 1 rearranges to 2.…”

Mononuclear zinc(II) and mercury(II) complexes of Schiff bases derived from pyrrolealdehyde and cysteamine containing intramolecular NH⋯S hydrogen bonds

“…angles of 171.7°and 168.5°for 1 and 2, respectively ( Table 3). The mean SÁ Á ÁN contact distances of 3.24 Å (complex 1) and 3.33 Å (complex 2), which are shorter than the sum of the van der Waals radii (3.35 Å) [49], are comparable to those of other complexes with hydrogen-bond interactions [21,23,24,26,32,[50][51][52]. With the av.…”

“…Nevertheless, a few Hg(II) complexes with different coordination modes, containing NHÁ Á ÁS hydrogen-bond interactions, have been reported in the literature [25,26,32,50,54].…”