Metal Raman spectroscopic study

The nearest La-C distance, 2.55(8) A (ionic radius of La(III) 1.15 A), is slightly larger than the nearest Sc-C distance, 2.53(8) A(ionic radius of Sc(III) 0.81 A), of Sc C82, which results in a weaker metal-cage interaction for La C82. In fact, the IR/Raman spectroscopic studies [31,32] on metallofullerenes by metal-cage vibrational mode measurements indicated that the La-cage vibration is much smaller in energy than those observed in other M C82 (M=Y, Sc, Tm)-type metallofullerenes. [Pg.69]

Sipos, R et al. Raman spectroscopic study of ion-pairing of alkali metal ions with carbonate and sulfate in aqueous solutions Aust. 7. Chem. 2000, 53, 887-890. [Pg.25]

Andrews L (1976) Infrared and Raman Spectroscopic Studies of Alkali-Metal-Alom Matrix-Reaktion Products. In Moskovits M. Ozin GA (eds) Cryochemistry. John Wiley. New York, p 195... [Pg.712]

The molecule of this compound, which is prepared by passing NF3 over various heated metals, has a hydrazine-like structure in which the angle of rotation from the eclipsed configuration is 70°. A Raman spectroscopic study of the liquid (—80... [Pg.645]

Reaction induced spreading of metal oxides in situ Raman spectroscopic studies during oxidation reactions... [Pg.255]

Infrared and Raman spectroscopic studies have been extensively carried out on PEO -metal salt complexes and have aided our understanding of the polymer structure, interaction of the ions with the polymer, as well as ion-ion interactions [67, 246]. [Pg.193]

The proceedings of a conference on metal-ammonia solutions have been published, featuring reviews of the physical properties of dilute and concentrated solutions, electrical, n.m.r., i.r., and Raman spectroscopic studies of diffusion, the solvated electron, kinetics, and solution structure."" Electron spin resonance in metallic Li-NHa systems has been investigated from 12 to 296 K. In the liquid solutions and in the cubic phase of Li(NH3)4 the conduction e.s.r. lineshapes are in agreement with theory. To a good approximation the solvated ions are the only spin scatterers in the liquid state. The paramagnetic susceptibility of liquid Li(NH3)4 indicates that the concentration of localized moments is low and they order antiferromagnetically below 20 K." ... [Pg.8]

The first in situ Raman spectroscopic study on electrochemical systems was reported on thin metal oxide and metal hahde film electrodes by Fleischmann etal. in 1973 [1]. The Raman spectroelectrochemi-cal measurements were made on thin films of Hg2Cl2, Hg2Br2, and HgO formed on droplets of mercury electrodeposited onto platinum electrodes. These mercury compounds have exceptionally high Raman scattering cross sections (very good Raman scatterers) so that the spectra of species as little as a few monolayers could be recorded on these high-surface-area electrodes. These experiments proved the viability of Raman spectroscopic measurements of... [Pg.572]

RESONANCE RAMAN SPECTROSCOPIC STUDY OF CATION RADICALS OF AROMATIC MOLECULES FORMED IN THE INTERLAYER OF TRANSITION-METAL EXCHANGED MONTMORILLONITES... [Pg.135]

Ren, B., Xu, X., Li, X.Q. et al. (1999) Extending surface Raman spectroscopic studies to transition metals for practical apphcations n. Hydrogen adsorption at platinum electrodes. Surface Science, 427-28, 157-161. [Pg.199]

Papatheodorou GN (1977) Raman spectroscopic studies of yttrium (III) chloride-alkali metal chlraide melts and of Cs2NaYClg and YCI3 solid compounds. J Chem Phys 66 2893-2900... [Pg.988]

Li, C. (2007) UV Raman spectroscopic studies on transition metal-containing microporous and mesoporous materials Active sites and synthesis mechanism. Stud Surf. Sci. Catal, 170, 561-576. [Pg.348]

Li, X., Hayashi, J., Li, C. Z. Volatilization and catalytic effects of atkah and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal. Part Vll. Raman spectroscopic study on the changes in char structure during the catalytic gasification in air. Fuel 2006, 85, 1509-1517. [Pg.368]

Umebayashi Y, Yamaguchi T, Fukuda S, Mitsugi T, Takeuchi M, Fujii K, Ishiguro S (2008) Raman spectroscopic study on alkaline metal ion solvation in l-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ionic liquid. Anal Sci 24 1297... [Pg.332]

Cryogenic inorganic chemistry a review of metal-gas reactions as studied by matrix isolation infrared and Raman spectroscopic techniques, G. A. Ozin and A. Vander Voet, Prog. Inorg. Chem., 1975,19,105-172 (303). [Pg.25]

Westermark, G. and Persson, 1. (1998) Chemisorption of tertiary phosphines on coinage and platinum group metal powders. An infrared reflectance absorption spectroscopic, enhanced Raman spectroscopic and surface coverage study. Colloids and Surfaces A -Physicochemical and Engineering Aspects, 144, 149-166. [Pg.356]

Beryllium(II) is the smallest metal ion, r = 27 pm (2), and as a consequence forms predominantly tetrahedral complexes. Solution NMR (nuclear magnetic resonance) (59-61) and x-ray diffraction studies (62) show [Be(H20)4]2+ to be the solvated species in water. In the solid state, x-ray diffraction studies show [Be(H20)4]2+ to be tetrahedral (63), as do neutron diffraction (64), infrared, and Raman scattering spectroscopic studies (65). Beryllium(II) is the only tetrahedral metal ion for which a significant quantity of both solvent-exchange and ligand-substitution data are available, and accordingly it occupies a... [Pg.17]

A Raman and IR spectroscopic study of Zn(OAc)2 and Zn(0Ac)2-2H20 has been described in the latter compound the metal is in an octahedral environment, with trans diaxial water ligands and bidentate chelating acetate groups, and in the former compound the metal is in a pseudotetrahedral environment.775... [Pg.969]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...