New metalorgano-chalcogenide compounds based on polymeric frameworks constructed by Se–Hg intermolecular interactions: Preparation, structural characterization, and Raman evaluation

Finoto, Simone; Machulek, Amílcar; Caires, Anderson R. L.; Arruda, Eduardo José de; Casagrande, Gleison A.; Raminelli, Cristiano; Andrade, Luís Humberto da Cunha; Lima, S.M.

doi:10.1016/j.poly.2015.07.005

Cited by 4 publications

(4 citation statements)

References 48 publications

(47 reference statements)

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“…Se1'•••Hg1 interactions of 3.0998(9) Å are in the range found in [(PhSe) 7 Hg 4 (SCN)Py] n (2.5486(13) -3.438(1) Å). 25 No further interactions were observed in the crystal.…”

Section: Crystal and Molecular Structure Of [Hgcl{sec 6 H 4 (Ch 2 Nmementioning

confidence: 95%

Synthesis and structural characterization of mercury(II) metal complexes containing the 2-(Me2NCH2)C6H4Se ligand

Șalgău¹,

Organic²,

Pop³

2020

Rev.Roum.Chim.

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The heteroleptic mercury(II) complex [HgCl{SeC 6 H 4 (CH 2 NMe 2)-2}] (1) was prepared by reacting the corresponding lithium organoselenolate in an equimolar ratio with HgCl 2. The complex [Hg(SCN){SeC 6 H 4 (CH 2 NMe 2)-2}] (2) was prepared by the salt metathesis reaction between 1 and KSCN in a 1:1 molar ratio. The metal complexes were characterized in solution by multinuclear NMR spectroscopy and mass spectrometry and the solid state structure of 1 was determined by single crystal X-ray diffraction. In the crystal of 1 a 1D zigzag polymeric chain was formed by Se•••Hg secondary interactions.

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“…Se1'•••Hg1 interactions of 3.0998(9) Å are in the range found in [(PhSe) 7 Hg 4 (SCN)Py] n (2.5486(13) -3.438(1) Å). 25 No further interactions were observed in the crystal.…”

Section: Crystal and Molecular Structure Of [Hgcl{sec 6 H 4 (Ch 2 Nmementioning

confidence: 95%

Synthesis and structural characterization of mercury(II) metal complexes containing the 2-(Me2NCH2)C6H4Se ligand

Șalgău¹,

Organic²,

Pop³

2020

Rev.Roum.Chim.

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“…91 An analogous chemistry between mercury and selenium is known but less extensively explored, with only 254 CSD entries for mercury−selenium species. 84 Of these, well-defined two-coordinate and three-coordinate selenolate complexes are known, with characteristic Hg−Se bond lengths of 2.47 and 2.56 Å, respectively; no CSD entries exist for fourcoordinate mononuclear Hg−Se selenolate species, although a number of polymetallic species that have μ 2 or μ 3 selenolates are known, 92 with lengthened Hg−Se bond lengths relative to mononuclear tetraselenolate complexes. In addition, a limited number of mononuclear four-coordinate mercury(II) selenocyanate complexes exhibit an average Hg−Se bond length of 2.657 Å (2.639−2.668 Å).…”

Section: Experimental Methodsmentioning

confidence: 99%

Mercury Lα1 High Energy Resolution Fluorescence Detected X-ray Absorption Spectroscopy: A Versatile Speciation Probe for Mercury

et al. 2022

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Mercury is in some sense an enigmatic element. The element and some of its compounds are a natural part of the biogeochemical cycle; while many of these can be deadly poisons at higher levels, environmental levels in the absence of anthropogenic contributions would generally be below the threshold for concern. However, mercury pollution, particularly from burning fossil fuels such as coal, is providing dramatic and increasing emissions into the environment. Because of this, the environmental chemistry and toxicology of mercury are of growing importance, with the fate of mercury being vitally dependent upon its speciation. X-ray absorption spectroscopy (XAS) provides a powerful tool for in situ chemical speciation, but is severely limited by poor spectroscopic energy resolution. Here, we provide a systematic examination of mercury Lα1 high energy resolution fluorescence detected XAS (HERFD–XAS) as an approach for chemical speciation of mercury, in quantitative comparison with conventional Hg LIII-edge XAS. We show that, unlike some lighter elements, chemical shifts in the Lα1 X-ray fluorescence energy can be safely neglected, so that mercury Lα1 HERFD–XAS can be treated simply as a high-resolution version of conventional XAS. We present spectra of a range of mercury compounds that may be relevant to the environmental and life science research and show that density functional theory can produce adequate simulations of the spectra. We discuss strengths and limitations of the method and quantitatively demonstrate improvements both in speciation for complex mixtures and in background rejection for low concentrations.

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“…[541,542] Four isostructural Hg species [Hg4(PhSe)7(X)solv]n (963-966, Figure 21) with different (pseudo)halides (X) and solvent ligands were obtained by changing to the appropriate salt, solvent and stabilizing ligand. [543][544][545] This chemistry could also be translated to a Te congener [Hg4(PhTe)7IPy]n (967), although in this case, (PhTe)2Hg was used alongside CdI2 instead of the mercury halide, which did not lead to the inclusion of Cd into the final compound. [546] For the group 13/16 combination, some In/Se networks are known.…”

Section: Adamantane-type Scaffolds In Polymeric Structuresmentioning

confidence: 99%

“…[(Cd4(SPh)8]n (939), PPh3 / THF, DMF I [232] [(Cd4(SePh)8]n (960) CdCl2, HSePh, NaOH / MeOH, H2O C [540] [Cd4(PhSe)7X(PPh3)]n (961-962, X = Cl, Br) (PhSe)2Cd, CdX2, PPh3 / MeOH, 130 °C, 1 h B [541,542] [Hg4(PhSe)7BrPy]n (963) (PhSe)2Hg, HgBr2, 1,3-bis(4-nitrophenyl)triazene / THF, Py, 100 min C [543] [Hg4(PhSe)7ClPy]n (964) (PhSe)2Hg, HgCl2, PPh3 / THF, Py, 5 h C [544] [Hg4(PhSe)7Br(dmf)]n (965) (PhSe)2Hg, HgI2, 4,4´-bipy / DMF, 5 h C [544] [Hg4(PhSe)7(SCN)Py]n (966) (PhSe)2Hg, Hg(SCN)2, / MeOH, THF, Py, 1 h C [545] [Hg4(PhTe)7IPy]n (967) (PhTe)2Hg, CdI2 / THF, Py, 90 min C [546] (C5H5NH2)24[In28Se54(H2O)4] (968)…”

Section: Chemical Science Accepted Manuscriptmentioning

confidence: 99%

Adamantane-type clusters: compounds with a ubiquitous architecture but a wide variety of compositions and unexpected materials properties

Rinn,

Rojas-León,

Peerless

et al. 2024

Chem. Sci.

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New metalorgano-chalcogenide compounds based on polymeric frameworks constructed by Se–Hg intermolecular interactions: Preparation, structural characterization, and Raman evaluation

Cited by 4 publications

References 48 publications

Synthesis and structural characterization of mercury(II) metal complexes containing the 2-(Me2NCH2)C6H4Se ligand

Synthesis and structural characterization of mercury(II) metal complexes containing the 2-(Me2NCH2)C6H4Se ligand

Mercury Lα1 High Energy Resolution Fluorescence Detected X-ray Absorption Spectroscopy: A Versatile Speciation Probe for Mercury

Adamantane-type clusters: compounds with a ubiquitous architecture but a wide variety of compositions and unexpected materials properties

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