Journal ArticleDOI
Single-crystal Raman spectra of arsenolite (As4O6) and senarmonite (Sb4O6). The gas-phase Raman spectra of P4O6, P4O10, and As4O6
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In this article, the observed fundamentals of the cubic form of As4O6(arsenolite) are unambiguously assigned from single-crystal measurements. But the cage structure is retained in the gas phase.Abstract:
The observed fundamentals of the cubic form of As4O6(arsenolite) are unambiguously assigned from single-crystal measurements. Data are also reported for the isomorphous senarmonite (Sb4O6) which (in the mineral) contains small quantities of the orthorhombic polymorph valentinite (Sb4O6). The gas-phase Raman spectra of P4O10, P4O6, and As4O6(together with polarization data) suggest that the cage structure is retained in the gas phase.read more
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Thermodynamic properties and stoichiometry of As (III) hydroxide complexes at hydrothermal conditions
TL;DR: In this article, the stochastic properties of As (III) hydroxide complexes were determined from both solubility and Raman spectroscopic measurements, and it was shown that H3AsO30(aq) is the dominant As-bearing species at concentrations up to ~1 m over a wide range of pH (0-8) and temperature (20-300 °C).
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Characterization of Pararealgar and Other Light-Induced Transformation Products from Realgar by Raman Microspectroscopy
TL;DR: In this paper, it has been determined that pararealgar, a light-induced polymorph of realgar, was used in a major work by the Renaissance master, Tintoretto.
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Structural investigations on PbO-Sb(2)O(3)-B(2)O(3):CoO glass ceramics by means of spectroscopic and dielectric studies.
T. Satyanarayana,I.V. Kityk,Michal Piasecki,P. Bragiel,Mikhail G. Brik,Y. Gandhi,N. Veeraiah +6 more
TL;DR: The IR and Raman spectroscopic studies have pointed out the existence of conventional BO(3), BO(4), SbO(4) and also Co(III)-O structural units in the glass ceramic samples and indicated the decreasing concentration of symmetrical structural vibrational groups with increase in the concentration of CoO.
Journal ArticleDOI
Theoretical studies on arsenic oxide and hydroxide species in minerals and in aqueous solution
TL;DR: In this article, the structure, stabilities, and vibrational spectra for As(OH)3 and its anions are compared with the results of Pokrovski et al. (1996).
Journal ArticleDOI
A theoretical study of P 4 O 6 : vibrational analysis and infrared and Raman spectra
TL;DR: In this article, the normal mode frequencies and corresponding vibrational assignments of tetraphosphorus hexoxide (P 4 O 6 ) in T d symmetry were examined theoretically using the gaussian 94 set of quantum chemistry codes at the HF/6-31G ∗, MP2/6 −31g ∗ and DFT/B3LYP/6 -31G levels of theory.