Search results for "Vibration spectra"

showing 2 items of 2 documents

Zinn - Chalkogen - Heterocyclen. I. 2.4.6-Hexamethyl-1.3.5-triselena-2.4.6-tristannacyclohexan, Massen- und Schwingungsspektren

2010

The mass spectrum of the title compound exhibits very similar fragmentation patterns compared with the sulfur analogon. The high stability of triply coordinated organotin cations is remarkable. There is no evidence for any stabilisation effects by pπ-dπ bonding concerning the ring bonds. The assignment of the vibration spectra leads to the conclusion that the molecule of triselenastanninane possesses a boat conformation.

CrystallographyFragmentation (mass spectrometry)chemistryStereochemistryCyclohexane conformationMass spectrumMoleculechemistry.chemical_elementGeneral ChemistryVibration spectraSulfurBulletin des Sociétés Chimiques Belges
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Application of micro Raman spectroscopy to industrial FC membranes

2007

Raman spectra of as-received and protonated membranes (Nafion® NRE-212, Fumapem® F-14100 and Fumasep® FAA) were measured with He-Cd and Ar laser. For the first time the Raman and IR spectra are reported of Fumasep membranes. Most of peaks in vibration spectra active in Raman and IR of membranes are interpreted with C-F, C-S, C-O-C, SO3, C-C bonds. The vibration region connected with protons and H-O bond in both types of membranes is found in Raman and IR spectra.

HistoryChemistryAnalytical chemistryInfrared spectroscopyProtonationVibration spectraLaserComputer Science ApplicationsEducationMicro raman spectroscopylaw.inventionsymbols.namesakeMembranelawsymbolsRaman spectroscopyJournal of Physics: Conference Series
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