The Crystal Structure of Mercury(I) Sulphate and Selenate.

Dorm, Ebba; Jacobsen, G. G.; Seip, H. M.; Holme, Tord; Lindberg, Alf A.; Jansen, Gert; Lamm, Bo; Samuelsson, Benny

doi:10.3891/acta.chem.scand.23-1607

Cited by 34 publications

(11 citation statements)

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“…The non-bonded Hg-O distances, Hg...O(2) (x-l, y, z)=2.93 (2) and ng...O(1) (x, --½-y, --½+z)= 2.84 (2) A, suggest some interaction, since the van der Waals radius of oxygen is 1.4 A and the closest Hg-Hg distance in solid mercury is estimated to be ~ 3.0 A (Evans, 1978). Similar weak interactions have been noted in HgE(BrO3) 2 (Dorm, 1967) and in HgESO 4 and HgESeO 4 (Dorm, 1969). The bonded -O-Hg-Hg-O system is approximately linear and the molecular unit is planar (deviations from the best plane are all <0.01 A) and centrosymmetric.…”

Section: Methodssupporting

confidence: 48%

Structural studies of mercury(I) compounds. I. Structure of mercury(I) nitrite, Hg2(NO2)2

English¹,

Röhm²,

Schutte³

1985

Acta Crystallogr C

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Section: Methodssupporting

confidence: 48%

Structural studies of mercury(I) compounds. I. Structure of mercury(I) nitrite, Hg2(NO2)2

English¹,

Röhm²,

Schutte³

1985

Acta Crystallogr C

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“…The Hg 2+ cation is in octahedral coordination of six oxygen atoms with Hg-O distances ranging from 226.3(2) to 239.3(3) pm and O-Hg-O angles ranging from 82.62°to 98.14° (Fig. bottom), which is much more regular than the observed values in Hg 2 (SO 4 ) [14] and Hg(SO 4 ) [15]. …”

mentioning

confidence: 99%

Crystal structure of mercury disulfate, Hg[S2O7], HgO7S2

Logemann

Wickleder

2013

Zeitschrift Für Kristallographie - New Crystal Structures

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HgO 7 S 2 , monoclinic, P2 1 /n (no. 14), a = 5.1467 ( Hg[S 2 O 7 ] has been prepared in the reaction of 50 mg HgO with 1 mL Oleum (65 % SO 3 ). The reaction was performed in a thickwalled glass ampoule. The tube was loaded with the reactants, torch-sealed under vacuum and placed in a resistance furnace. The ampoule was held at a temperature of 250°C for 24 h and cooled down to room temperature at a rate of 1.8°C·h -1 , leading to a large number of colourless single crystals. Source of material Experimental detailsThe structure could be successfully solved using Direct Methods of SHELXS [1]. The structure was expanded using Fourier techniques. Refinement of the structure with anisotropic displacement parameters for all atoms was performed after the data were corrected for absorption effects. All calculations were performed with the SHELX program [1] and the data were processed with the programs X-RED [2] and X-Shape [3]. DiscussionOne of the main research projects of our working group is the investigation of the reactivity of sulfuric acid and its derivatives under harsh conditions. Milestones of this research were the preparation of gold (II) ] crystallizes in the monoclinic space group P2 1 /n with 4 formula units per unit cell. The mercury cations and disulfate anions form 8-, 10-, and 12-membered rings. This leads to a complex three dimensional network for the structure (Fig. top). The complex disulfate anion shows staggered conformation with an O-S-S-O torsion angle of about 52°. The terminal S-O bond lengths range from 144.6(3) to 145.8(3) pm. The bridging S-O-S bonds are nearly symmetric with a S-O bond length of 161.8(3) and 162.5(3) pm. These values are in line with literature data observed for disulfates. The Hg 2+ cation is in octahedral coordination of six oxygen atoms with Hg-O distances ranging from 226.3(2) to 239.3(3) pm and O-Hg-O angles ranging from 82.62°to 98.14° (Fig. bottom), which is much more regular than the observed values in Hg 2 (SO 4 ) [14] and Hg(SO 4 ) [15].

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“…Structural data of the previous refinement of Hg 2 SO 4 (Dorm, 1969) were deposited with the ICSD (2014), but contain an error in the z coordinate of the sulfur atom. Other phases in the system Hg/S/O were structurally characterized by Aurivillius & Stå lhandske (1980) [HgSO 4 ], Weil (2001) [Hg 3 (SO 4 )O 2 ] and Logemann & Wickleder (2013) [Hg(S 2 O 7 )].…”

Section: Related Literaturementioning

confidence: 99%

“…The coordinates of the previous refinement (Dorm, 1969) ) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement.…”

Section: S2 Refinementmentioning

confidence: 99%

Crystal structure of Hg₂SO₄– a redetermination

Weil

2014

Acta Cryst E

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The crystal structure of mercury(I) sulfate (or mercurous sulfate), Hg 2 SO 4 , was re-determined based on modern CCD data. In comparison with the previous determination from Weissenberg film data [Dorm (1969). Acta Chem. Scand. 23, 1607-1615], all atoms were refined with anisotropic displacement parameters, leading to higher precision in terms of bond lengths and angles [e.g. Hg-Hg = 2.5031 (7) compared to 2.500 (3)Å ]. The structure consists of alternating rows along [001] of Hg 2 2+ dumbbells (generated by inversion symmetry) and SO 4 2À tetrahedra (symmetry 2). The dumbbells are linked via short O-Hg-Hg-O bonds to the sulfate tetrahedra into chains extending parallel to [201]. More remote O-HgHg-O bonds connect these chains into a three-dimensional framework.Keywords: crystal structure; redetermination; mercurous; Hg/S/O system.

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The Crystal Structure of Mercury(I) Sulphate and Selenate.

Cited by 34 publications

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Structural studies of mercury(I) compounds. I. Structure of mercury(I) nitrite, Hg2(NO2)2

Structural studies of mercury(I) compounds. I. Structure of mercury(I) nitrite, Hg2(NO2)2

Crystal structure of mercury disulfate, Hg[S2O7], HgO7S2

Crystal structure of Hg₂SO₄– a redetermination

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The Crystal Structure of Mercury(I) Sulphate and Selenate.

Cited by 34 publications

References 0 publications

Structural studies of mercury(I) compounds. I. Structure of mercury(I) nitrite, Hg2(NO2)2

Structural studies of mercury(I) compounds. I. Structure of mercury(I) nitrite, Hg2(NO2)2

Crystal structure of mercury disulfate, Hg[S2O7], HgO7S2

Crystal structure of Hg2SO4– a redetermination

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Crystal structure of Hg₂SO₄– a redetermination