Raman Spectrum of Thionyl Bromide

Stammreich, H.; Forneris, Roberto; Tavares, Yara

doi:10.1063/1.1743194

Cited by 19 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Они, как показано в табл. 1, хорошо согласуются с полосами в спектре GeI 4 [28,29], который по массовому соотношению близок к GeTe 4 . Также видно, что из-за нарушения правил отбора в ИК спектрах тетраэдрических молекул типа GeX 4 проявляются, кроме ИК-активных мод ν 3 и ν 4 , все предсказываемые фундаментальные моды, подтверждая, что структура кристаллического GST сплава является только " rock salt like" [2].…”

Section: результаты и их обсуждениеunclassified

Оптические свойства фазопеременных материалов системы германий--сурьма-теллур составов Ge-=SUB=-14-=/SUB=-Sb-=SUB=-29-=/SUB=-Te-=SUB=-57-=/SUB=- и Ge-=SUB=-15-=/SUB=-Sb-=SUB=-15-=/SUB=-Te-=SUB=-70-=/SUB=- в дальнем инфракрасном диапазоне

Ryzhov¹,

Melekh²,

Kazakova³

2021

Физика И Техника Полупроводников

View full text Add to dashboard Cite

Infrared absorption spectra of chalcogenide alloys of the GST system with the compositions Ge14Sb29Te57 and Ge15Sb15Te70 in the amorphous and crystalline state were measured and analyzed in the range of 20 – 400 cm– 1 (0.6 – 12 THz) at room temperature. Absorption at these frequencies is due to the manifestation of correlated torsional vibrations of structural units of the amorphous alloy and phonon modes of the crystal. The performed assignment of absorption bands and the revealed differences in the IR spectra make it possible to more confidently represent the possible molecular mechanism of reversible amorphous-crystalline transformations in the studied phase-changing materials

show abstract

Section: результаты и их обсуждениеunclassified

Оптические свойства фазопеременных материалов системы германий--сурьма-теллур составов Ge-=SUB=-14-=/SUB=-Sb-=SUB=-29-=/SUB=-Te-=SUB=-57-=/SUB=- и Ge-=SUB=-15-=/SUB=-Sb-=SUB=-15-=/SUB=-Te-=SUB=-70-=/SUB=- в дальнем инфракрасном диапазоне

Ryzhov¹,

Melekh²,

Kazakova³

2021

Физика И Техника Полупроводников

View full text Add to dashboard Cite

show abstract

“…Todos esses modos são ativos no Raman e IR, mas medidas de polarização das bandas Raman permitem discriminar entre as geometrias planar e piramidal, pois são polarizadas as bandas correspondentes aos três modos A 1 ou quatro modos A'. Stammreich et al 63 registraram o espectro Raman do correspondente derivado brometo, SOBr 2 . As medidas de polarização das bandas Raman confirmaram que a estrutura de SOBr 2 também é piramidal, C s .…”

Section: Halogênios E Inter-halogêniosunclassified

“…As medidas de polarização das bandas Raman confirmaram que a estrutura de SOBr 2 também é piramidal, C s . 63 A determinação da estrutura da molécula P 2 I 4 é mais complicada devido às várias conformações possíveis. A Figura 8 mostra possíveis estruturas de P 2 I 4 com os respectivos grupos de ponto e as atividades dos modos no IR e Raman.…”

Section: Halogênios E Inter-halogêniosunclassified

Uma Releitura Dos Artigos Científicos Do Prof. Hans Stammreich

Ribeiro

2019

Quím. Nova

View full text Add to dashboard Cite

Recebido em em 03/05/2019; aceito em 12/07/2019 publicado em 21/10/2019 REREADING THE WORKS OF PROF. HANS STAMMREICH. In this work we provide a revision of the studies by Raman spectroscopy carried out by Prof. Hans Stammreich in the São Paulo University. The works of Prof. Stammreich are discussed focusing on the most important conclusion of each paper and the scientific issue at the time of publication. Approximately twentyfive papers are discussed, which were separated into four groups according to the investigated systems: metal carbonyls, halogens and inter-halogens, halogen compounds, and oxoanions.

show abstract

“…Infrared and Raman spectra of gaseous SOF 2 were reported by Pace and Samuelson [4], whereas the infrared spectrum of gaseous SOCl 2 was measured by Hopf and Paetzold [5]. Only the Raman spectrum of liquid SOBr 2 is known [6].…”

Section: Introductionmentioning

confidence: 99%

A Quantum Chemistry Approach to the Force Fields of the Thionyl and Selenyl Halides, SOX₂ and SeOX₂

Fernández

Varetti

2007

Zeitschrift Für Naturforschung B

View full text Add to dashboard Cite

Force fields and vibrational frequencies were calculated for the molecules SOX2 and SeOX2, with X = F, Cl, Br, using DFT techniques. The previously available experimental data and assignments for the six molecules were confirmed by the theoretical results. These data were subsequently used in the definition of the corresponding scaled quantum mechanics (SQM) force fields. A comparison of the obtained internal force constants is made with results reported by other authors for the studied species.

show abstract

Raman Spectrum of Thionyl Bromide

Cited by 19 publications

References 5 publications

Uma Releitura Dos Artigos Científicos Do Prof. Hans Stammreich

A Quantum Chemistry Approach to the Force Fields of the Thionyl and Selenyl Halides, SOX₂ and SeOX₂

Contact Info

Product

Resources

About

Raman Spectrum of Thionyl Bromide

Cited by 19 publications

References 5 publications

Uma Releitura Dos Artigos Científicos Do Prof. Hans Stammreich

A Quantum Chemistry Approach to the Force Fields of the Thionyl and Selenyl Halides, SOX2 and SeOX2

Contact Info

Product

Resources

About

A Quantum Chemistry Approach to the Force Fields of the Thionyl and Selenyl Halides, SOX₂ and SeOX₂