Influence of changes in structure on the vibrational spectra of sulfates in aqueous solutions

1969 ◽  
Vol 10 (5) ◽  
pp. 518-522 ◽  
Author(s):  
L. V. Volod'ko ◽  
Lieh T'han Huoah
Keyword(s):  
Aqueous Solutions ◽  
Vibrational Spectra

H+ and OH− ions in aqueous solutions vibrational spectra of hydrates

1979 ◽  
Vol 39 (3) ◽  
pp. 351-366 ◽  
Author(s):  
N.B. Librovich ◽  
V.P. Sakun ◽  
N.D. Sokolov
Keyword(s):  
Aqueous Solutions ◽  
Vibrational Spectra

Tetraquecksilbermethane. Tetrakis(methylthioquecksilber)-methan C(HgSCH3)4 und µ-Dithiotetraquecksilbermethan CHg4S2; Synthesen und Schwingungsspektren / Tetramercurimethanes. Tetrakis(methylthiomercuri)methane C(HgSCH3)4 and µ-Dithiotetramercurimethane CHg4S2; Syntheses and Vibrational Spectra

1977 ◽  
Vol 32 (9) ◽  
pp. 1022-1025 ◽  
Author(s):  
Dietrich Breitinger ◽  
Wilfred Morell
Keyword(s):  
Aqueous Solutions ◽  
Vibrational Spectra ◽  
Reaction Conditions

Reactions of tetrakis(acetoxymercuri)methanes C(HgOOCCR3)4 (R = H, or F) in aqueous solutions with methylsulfane CH3SH, or sulfane H2S, yield tetrakis(methylthiomercuri)methane C(HgSCH3)4, and μ-dithiotetramercurimethane CHg4S2, respectively, both insoluble in common solvents and thermally remarkably stable. The central CHg4 groups of the starting materials have been preserved under the reaction conditions, thus tetrahedral entities C(HgS–)4 are common to both compounds. In the polymeric, amorphous CHg4S2 the CHg4 units are linked by sulfur bridges in a highly disordered manner, as is suggested by vibrational spectra. In other respects close similarities in the vibrational behaviour of these CHg4 fragments and of the isosteric NHg4 tetrahedra in tetramercurioammonium complexes have been observed.

Low frequency vibrational spectra of lithium formate monohydrate and its aqueous solutions

1983 ◽  
Vol 61 (10) ◽  
pp. 2282-2284 ◽  
Author(s):  
A. Agarwal ◽  
D. P. Khandelwal ◽  
H. D. Bist
Keyword(s):  
Aqueous Solutions ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Low Frequency ◽  
Far Infrared ◽  
Infrared And Raman Spectra ◽  
Tetrahedral Structure ◽  
Structure Of Water ◽  
Lithium Formate ◽  
Lithium Formate Monohydrate

The far infrared and Raman spectra of polyerystalline lithium formate monohydrate and the Rayleigh wing scattering of its aqueous solutions are reported. Three new bands in solid and bands due to librations of HCOO− and the quasi-tetrahedral structure of water in solutions have been identified.

Über Cyanatomercurate M2Hg3(NCO)8 (M = K, Rb, Cs) - Synthesen, Kristallstrukturen und Schwingungsspektren / On Cyanatomercurates M2Hg3(NCO)8 (M = K, Rb, Cs) - Syntheses, Crystal Structures and Vibrational Spectra

1978 ◽  
Vol 33 (6) ◽  
pp. 597-602 ◽  
Author(s):  
Gerhard Thiele ◽  
Peter Hilfrich
Keyword(s):  
Crystal Structure ◽  
Vibrational Spectrum ◽  
Aqueous Solutions ◽  
Cell Volume ◽  
Structure Analysis ◽  
Vibrational Spectra ◽  
Crystal Structure Analysis ◽  
First Approximation ◽  
Distorted Octahedra ◽  
Van Der Waals Radii

Abstract By mixing aqueous solutions of Hg(CH3COO)2 and MOCN (M = K, Rb, Cs) the tri-clinic compounds M2Hg3(NCO)8 are formed. In a first approximation the crystal structure analysis indicates isolated Hg(NCO)2 molecules besides K+ and NCO- ions. As in the range of van der Waals radii additional NCO-neighbours are noticed the mercury atoms are surrounded by distorted octahedra. The octahedra around 2/3 of the Hg form infinite chains as in KHg(NCO)3 which are linked together by additional Hg(NCO)2 molecules. Therefore the compound can be formulated as a double salt 2 KHg(NCO)3 • Hg(NCO)2. The vibrational spectrum is discussed. Rb2Hg3(NCO)8 is isotypous while the caesium salt has a double cell volume.

Concentration effects in the vibrational spectra of aqueous solutions of nitrites

1995 ◽  
Vol 62 (1) ◽  
pp. 76-82 ◽  
Author(s):  
M. U. Belyi ◽  
G. I. Gaididei ◽  
V. P. Sakun ◽  
M. G. Skryshevskaya
Keyword(s):  
Aqueous Solutions ◽  
Vibrational Spectra ◽  
Concentration Effects

Thio-hydroxoanionen des Germaniums: Darstellung, Struktur und Eigenschaften von Na2GeS2(OH)2 · 5 H2O / Thio-hydroxo Anions of Germanium: Preparation, Structure and Properties of Na2GeS2(OH)2 · 5 H2O

1981 ◽  
Vol 36 (11) ◽  
pp. 1400-1406 ◽  
Author(s):  
Bernt Krebs ◽  
Hans-Joachim Wallstab
Keyword(s):  
Hydrogen Bond ◽  
Aqueous Solutions ◽  
Vibrational Spectra ◽  
Sodium Sulfide ◽  
Structure And Properties ◽  
Orthorhombic Space Group ◽  
X Ray ◽  
Hydrogen Bond System ◽  
Bond System ◽  
Stretching Vibrations

Abstract Pure thio-hydroxo-germanates can be prepared from aqueous solutions by reactions of stoichiometric amounts of either sodium sulfide and GeO2, or NaOH and GeS2. The preparation of colourless crystalline Na2GeS2(OH)2 · 5 H2O is reported. The compound is characterized by a single-crystal X-ray structure analysis. It is orthorhombic, space group Pbcn, with a = 10.752(2), b= 13.787(2), c = 14.150(2) Å. The structure contains novel monomeric GeS2(OH)22- anions with Ge-S bond distances of 2.150(1) and 2.145(1) Å and with Ge-O lengths of 1.809(3) and 1.815(3) Å. An extensive S ··· HO-and O -HO-hydrogen bond system connects the anions with the octahedrally coordinated Na+ ions. The vibrational spectra are reported. The symmetric GeS2 andGeO2 stretching vibrations in the anion are observed at 415 and 618 cm-1.

Vibrational spectra of mercury(I) nitrate in aqueous solution and of the crystalline hydrolysis products

1978 ◽  
Vol 31 (12) ◽  
pp. 2601 ◽  
Author(s):  
K Tan ◽  
MJ Taylor
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Hydrolysis Products ◽  
Mercurous Nitrate

Aqueous solutions of 'mercurous nitrate' are shown by Raman spectra to contain the complexes [Hg2(OH2)NO3]+ and [Hg2(OH2)2]2+. Crystalline dimercury(I) nitrate, Hg2(NO3)2,2H2O, and its solid hydrolysis products Hg2(OH)2,3Hg2(NO3)2, 2Hg2(OH)2,3Hg2(NO3)2,H2O and Hg2(OH)2,- Hg2(NO3)2 have been obtained: the vibrational spectra are reported and interpreted in terms of possible structures. Modes v(Hg-Hg) appear in the range 170- 200 cm-1 and are sensitive to the particular combination of the ligands OH, ONO2, and H2O attached to the dimercury(I) ion.

Über die Tricyanatomercurate KHg(NCO)3 und RbHg(NCO)3 — Synthesen, Kristallstrukturen und Schwingungsspektren / On the Cyanatomercurates KHg(NCO)3 and RbHg(NCO)3 — Syntheses, Crystal Structures and Vibrational Spectra

1977 ◽  
Vol 32 (11) ◽  
pp. 1239-1243 ◽  
Author(s):  
Gerhard Thiele ◽  
Peter Hilfrich
Keyword(s):  
Crystal Structure ◽  
Aqueous Solutions ◽  
Crystal Structures ◽  
Structure Analysis ◽  
Vibrational Spectra ◽  
Crystal Structure Analysis ◽  
Space Group

By mixing aqueous solutions of Hg(CH3COO)2 and KOCN the white precipitate K2Hg3(NCO)8 is formed. When recrystallised from CH3OH colorless crystals of the compound KHg(NCO)3 are obtained. The crystal structure analysis (space group Pnma; α = 1015.2(6) pm, b = 399.3(3) pm, c = 1772.9(9) pm) shows a distorted KCdCl3 arrangement with isolated Hg(NCO)2 molecules, K+ and NCO- ions. The vibrational spectra in the range of 250-3000 cm-1 are discussed. The rubidium compound is isotypous (a = 1019.0(6) pm, b = 411.6(4) pm, c = 1820.5(8) pm).

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