Kristallstruktur und Schwingungsspektren des Thalliumhexathiometadiphosphates Tl2P2S6 / Crystal Structure and Vibrational Spectra of Tl2P2S6

1983 ◽  
Vol 38 (12) ◽  
pp. 1575-1580 ◽  
Author(s):  
Claus Wibbelmann ◽  
Wolfgang Brockner ◽  
Brigitte Eisenmann ◽  
Herbert Schäfer
Keyword(s):  
Crystal Structure ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Far Infrared ◽  
Infrared And Raman Spectra ◽  
Orthorhombic System ◽  
Space Group ◽  
Lattice Constants

Tl2P2S6 crystallizes in the orthorhombic system, space group Immm, Z = 2 with the lattice constantsa = 793.2(4) pm, b = 689.2(4) pm, c = 901.9(5) pm.In the structure there are discrete P2S62- -anions. The P2S62- -ion was found to be a hexa-thiometadiphosphate group where the two P atoms are linked by two S bridges.Far infrared, infrared and Raman spectra of this compound have been recorded. The observed frequencies are assigned on the basis of P2S62- units with D2h symmetry in analogy to the isoelectronic Al2Cl6

Kristallstruktur und Schwingungsspektren des Di-Blei-Hexaselenohypodiphosphates Pb2P2Se6 / Crystal Structure and Vibrational Spectra of Pb2P2Se6

1984 ◽  
Vol 39 (4) ◽  
pp. 357-361 ◽  
Author(s):  
Robert Becker ◽  
Wolfgang Brockner ◽  
Herbert Schäfer
Keyword(s):  
Crystal Structure ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Title Compound ◽  
Far Infrared ◽  
Infrared And Raman Spectra ◽  
Monoclinic System ◽  
Space Group ◽  
Lattice Constants

Pb2P2Se6 crystallizes in the monoclinic system, space group Pn (No. 13) with the lattice constantsa = 974.2 (4) pm. b = 766.2 (3) pm. c = 689.8 (3) pm, β=91.44(5)°.The title compound is isotypic to the homologous Pb2P2S6. In the structure there are discrete P2Se4-6 anions.Far infrared, infrared and Raman spectra of this compound have been recorded. The observed frequencies are assigned on the basis of P2Se4-6 units with C2h symmetry in the crystal. DTA-data have been determined and interpreted.

Kristallstruktur und Schwingungsspektren des Di-Blei-Hexathiohypodiphosphates Pb2P2S6 / Crystal Structure and Vibrational Spectra of Pb2P2S6

1983 ◽  
Vol 38 (8) ◽  
pp. 874-879 ◽  
Author(s):  
Robert Becker ◽  
Wolfgang Brockner ◽  
Herbert Schäfer
Keyword(s):  
Crystal Structure ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Far Infrared ◽  
Infrared And Raman Spectra ◽  
Monoclinic Modification ◽  
Monoclinic System ◽  
Space Group ◽  
Lattice Constants

Abstract Pb2P2S6 crystallizes in the monoclinic system, space group Pn with the lattice constants a = 940.2(4) pm, b= 746.6(3) pm, c = 661.2(3) pm, β = 91.53(5)°. The compound is isotypic to the monoclinic modification II of Sn2P2S6 . In the structure there are discrete P2S4-6 -anions.Far infrared, infrared and Raman spectra of this compound have been recorded. The observed frequencies are assigned on the basis of P2S4-6 units with C2h symmetry in the crystal. DTA-data have been determined and interpreted.

scholarly journals Kristallstruktur und Schwingungsspektrum des Thallium(I)-Zinn(II)-ortho-Thiophosphates TlSnPS4

1987 ◽  
Vol 42 (11) ◽  
pp. 1309-1312 ◽  
Author(s):  
Robert Becker ◽  
Wolfgang Brockner ◽  
Brigitte Eisenmann
Keyword(s):  
Raman Spectrum ◽  
Melting Point ◽  
Title Compound ◽  
Far Infrared ◽  
Orthorhombic System ◽  
Space Group ◽  
Lattice Constants ◽  
Moisture Sensitive

TlSnPS4 crystallizes in the orthorhombic system, space group Pna21 (Nr. 33), Z = 4 with the lattice constants a = 1175.8 (5) pm, b = 890.1 (4) pm, c = 663.3 (4) pm. In the structure are sligthly distorted discrete PS3-4 anions.The far infrared, infrared and Raman spectrum is assigned on the basis of PS3-4 -units with C3v symmetry. According to the DTA data the melting point for TlSnPS4 is 575 ± 5 °C. The title compound is not moisture sensitive and semi-conducting.

Schwingungsspektren von Sn2P2S6 / Vibrational Spectra of Sn2P2S6

1983 ◽  
Vol 38 (5) ◽  
pp. 555-558 ◽  
Author(s):  
Robert Becker ◽  
Wolfgang Brockner ◽  
Claus Wibbelmann
Keyword(s):  
Raman Spectra ◽  
Vibrational Spectra ◽  
Far Infrared ◽  
Infrared And Raman Spectra

Far infrared, infrared and Raman spectra of tin hexathiohypodiphosphate Sn2P2S6 (mono­clinic modification II) have been recorded. The observed frequencies are assigned on the basis of P2S64-units with C2h symmetry in the crystal. The assignment is supported by the correlation D3d (dissolved P2S64- ion) → C2h. DTA-data have been determined and interpreted.

scholarly journals Darstellung, Kristallstruktur und Schwingungsspektren von cyclo-Undekaschwefel (S11) und von cyclo-Tridekaschwefel (S13) / Preparation, Crystal Structure, and Vibrational Spectra of cyclo-Undecasulfur (S11) and of cyclo-Tridecasulfur (S13)

1986 ◽  
Vol 41 (8) ◽  
pp. 958-970 ◽  
Author(s):  
Ralf Steudel ◽  
Jürgen Steidel ◽  
Torsten Sandow
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Infrared And Raman Spectra ◽  
X Ray ◽  
Bond Angles ◽  
Torsional Angles

AbstractThe homocyclic S11 and S13 molecules have been synthesized from titanocenepentasulfide and S6Cl2 or S8Cl2, respectively, and obtained as yellow crystals which are metastable for several days at 20 °C. X-Ray structural analyses of single crystals at -105± 5 °C exhibited molecules of approximately C2 symmetry with bond distances (d), bond angles (a) and torsional angles (r) in the following ranges: S11 : d = 203.2 -211.0 pm, α = 103.3-108.6°, τ = 69.3 - 140.5°; S13: d = 197.8 - 211.3 pm, α = 102.8-111.1°, τ = 29.5 - 116.3°. Infrared and Raman spectra of S11 and S13 are reported. In addition, the synthesis of S6Cl2 and S8Cl2 from S6 or S8, respectively, and chlorine is described.

The Vibrational Spectra and Crystal Structure of Acenaphthylene

1973 ◽  
Vol 51 (3) ◽  
pp. 402-404 ◽  
Author(s):  
A. Bree ◽  
R. A. Kydd ◽  
V. V. B. Vilkos ◽  
R. S. Williams
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Room Temperature ◽  
Infrared And Raman Spectra ◽  
Depolarization Ratio ◽  
X Ray

A study of the polarized infrared and Raman spectra of acenaphthylene single crystals has been made. These results, together with Gordon and Yang's preliminary X-ray work, suggest that the molecules pack in some disordered arrangement in the solid at room temperature. Most of the A1 fundamentals were identified in the Raman solution spectrum from their low depolarization ratio, and a few tentative assignments of nontotally symmetric fundamentals were made.

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.

Intermetallische Verbindungen mit HgCl2-isosteren Anionen: Strukturelle und schwingungsspektroskopische Untersuchung von Na4HgP2, K4ZnP2, K4CdP2 und K4HgP2 / Intermetallic Compounds with HgCl2 Isoelectronic Anions: Crystal Structure and Vibrational Spectra of Na4HgP2, K4ZnP2, K4CdP2 and K4HgP2

1989 ◽  
Vol 44 (10) ◽  
pp. 1228-1232 ◽  
Author(s):  
B. Eisenmann ◽  
M. Somer
Keyword(s):  
Crystal Structure ◽  
Infrared Spectra ◽  
Far Infrared ◽  
Compound K ◽  
Monoclinic System ◽  
Characteristic Structure ◽  
Space Group ◽  
Lattice Constants ◽  
New Compounds ◽  
Far Infrared Spectra

The new compounds Na4HgP2, K4ZnP2 and K4HgP2 are isotypic and crystallize in the rhombohedral system, space group R3m, Z = 3, with the lattice constants: Na4HgP2: a = 500.8(2) pm, c = 2544.7(8) pm, c/a = 5.081; K4ZnP2: a = 566.4(2) pm, c = 2610.1(8) pm, c/a = 4.608; K4HgP2: a = 567.1(2) pm, c = 2697.7(8) pm, c/a = 4.757. The crystal structure of the compound K4CdP2, formerly described in the monoclinic system (space group C2/m), has been revised (R3m, a = 568.1(2) pm, c = 2698.4(8) pm, c/a = 4.750). Linear units [P—T—P]4- with T = Zn, Cd, Hg, which are isoelectronic to the molecule HgCl2, represent the characteristic structure elements. The far infrared spectra are recorded and assigned on the basis of the [P—T—P]4- anions.

Syntheses, Structures and Vibrational Spectra of Some Dimethyl Sulfoxide Solvates of Bismuth(III) Bromide and Iodide

1998 ◽  
Vol 51 (4) ◽  
pp. 285 ◽  
Author(s):  
Graham A. Bowmaker ◽  
Jack M. Harrowfield ◽  
Peter C. Junk ◽  
Brian W. Skelton ◽  
Allan H. White
Keyword(s):  
Single Crystal ◽  
Dimethyl Sulfoxide ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Room Temperature ◽  
Far Infrared ◽  
Infrared And Raman Spectra ◽  
X Ray

Room-temperature single-crystal X-ray studies are recorded for some dimethyl sulfoxide (dmso) solvates of bismuth(III) bromide and iodide. Colourless BiBr3.3dmso is triclinic, P-1, a 8·467(4), b 9·109(4), c 13·901(4) Å, α 76·34(4), β 76·95(4), γ 64·56(4)°, Z = 2; conventional R on |F| was 0·050 for No 2306 independent ‘observed’ (I > 3σ(I)) reflections. The complex is mononuclear with a quasi-octahedral fac-bismuth environment, [(dmso-O)3BiBr3], isomorphous with the previously determined chloride. Orange BiI3-2dmso is triclinic, P-1, a 12·558(2), b 8·962(2), c 8·342(1) Å, α 61·85(1), β 78·27(1), γ 76·89(2)°, Z = 2 f.u., R 0·048 for No 1953. The complex is binuclear, a pair of iodide atoms bridging the two bismuth atoms, [(dmso-O)2I2Bi(µ-I)2BiI2(O-dmso)2]; the two O-dmso ligands about each six-coordinate bismuth lie trans. Red BiI3.2 ⅔ dmso is triclinic, P-1, a 16·435(6), b 14·926(2), c 12·396(3) Å, α 74·89(2), β 73·24(2), γ 79·18(2)°, Z = 6, R 0·059 for No 5858. The complex is [Bi(O-dmso)8] [Bi2I9], the eight-coordinate metal environment of the cation being, unusually, dodecahedral; in the anion a pair of quasi-octahedral six-coordinate bismuth atoms are bridged by three iodides, [I3Bi(µ-I)3BiI3]3-. Bands in the far-infrared and Raman spectra due to the v(BiX) modes are assigned and discussed in relation to the structures of the complexes. The assignment of the v(BiO) modes is discussed.

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