Pregled bibliografske jedinice broj: 257137
Low temperature Raman study of bis(trimethylsilyl)acetylene
Low temperature Raman study of bis(trimethylsilyl)acetylene // Journal of molecular structure, 834-836 (2007), 270-275 (međunarodna recenzija, članak, znanstveni)
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Naslov
Low temperature Raman study of bis(trimethylsilyl)acetylene
Autori
Mohaček Grošev, Vlasta ; Furić, Krešimir
Izvornik
Journal of molecular structure (0022-2860) 834-836
(2007);
270-275
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Raman ; low temperature ; methyl group ; phonons ; bis(trimethylsilyl)acetylene ; disorder
Sažetak
Low temperature Raman spectroscopy was applied in study of bis(trimethylsilyl)acetylene (BTMSA), a known catalyst with very low barrier for the internal rotation of methyl groups - less than 10 cal/mole (Sipachev et al. J. Mol. Struct. 523 (2000) 1.). Since crystals consisting of flexible molecules often show polymorphism, it was of interest to find out if it is the case of BTMSA. Phonon Raman spectra recorded from 10 K to 323 K were in complete agreement with previously determined crystal structure: for space group P21/c with Z = 2 six phonons are expected and six are observed below 100 cm-1. BTMSA crystallizes in trans confromation, also the most stable one in gas phase. All observed bands could be attributed to crystal splitting of molecular g modes of D3d symmetry into Ag and Bg modes of the point group C2h of the crystal.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
Napomena
Molecular Spectroscopy and Molecular Structure 2006 - A Collection of Papers Presented at the XXVIIIth European Congress on Molecular Spectroscopy, Istanbul, Turkey - September 3-8, 2006
POVEZANOST RADA
Projekti:
MZOS-0098019 - Dinamika hidratacije šećera (Mohaček-Grošev, Vlasta, MZOS ) ( CroRIS)
MZOS-0098022 - Fizika i primjena nanostruktura (Furić, Krešimir, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb
Poveznice na cjeloviti tekst rada:
Pristup cjelovitom tekstu rada www.sciencedirect.com www.sciencedirect.comCitiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
Uključenost u ostale bibliografske baze podataka::
- Chemical Abstracts