Fourier-transform infrared and Raman spectra, vibrational assignment and density functional theory calculations of 1,4,5-triazanaphthalene

2009 ◽  
Vol 40 (9) ◽  
pp. 1183-1187 ◽  
Author(s):  
V. Krishnakumar ◽  
R. Ramasamy
Keyword(s):  
Density Functional Theory ◽  
Fourier Transform ◽  
Raman Spectra ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Fourier Transform Infrared ◽  
Infrared And Raman Spectra ◽  
Vibrational Assignment ◽  
Functional Theory

Density functional study of the phase stability and Raman spectra of Yb2O3, Yb2SiO5 and Yb2Si2O7 under pressure

2018 ◽  
Vol 20 (24) ◽  
pp. 16518-16527 ◽  
Author(s):  
Takafumi Ogawa ◽  
Noriko Otani ◽  
Taishi Yokoi ◽  
Craig A. J. Fisher ◽  
Akihide Kuwabara ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Hydrostatic Pressure ◽  
Raman Spectra ◽  
Phase Stability ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Functional Study ◽  
Functional Theory ◽  
Density Functional Study

The phase stability and Raman spectra of Yb2O3, Yb2SiO5 and Yb2Si2O7 under hydrostatic pressure are investigated using density functional theory calculations.

P—N Bond Length Alterations Monitored by Infrared Absorption and Fourier Transform Raman Spectroscopy in Combination with Density Functional Theory Calculations

2003 ◽  
Vol 57 (8) ◽  
pp. 970-976 ◽  
Author(s):  
M. Bolboaca ◽  
T. Stey ◽  
A. Murso ◽  
D. Stalke ◽  
W. Kiefer
Keyword(s):  
Density Functional Theory ◽  
Fourier Transform ◽  
Density Functional ◽  
Structural Parameters ◽  
Density Functional Theory Calculations ◽  
Functional Theory ◽  
Fourier Transform Raman Spectroscopy ◽  
Raman And Infrared Spectroscopy ◽  
Fourier Transform Raman

Fourier transform (FT) Raman and infrared spectroscopy in combination with density functional theory calculations have been applied to the vibrational characterization of the dimeric zinc diphenylphosphanyl(trimethylsilyl)amide complex [(Me3Si)2NZnPh2PNSiMe3]2 and the ortho-metallated species [Li( o-C6H4PPh2NSiMe3)]2·Et2O in relation to their parent starting materials diphenylphosphanyl (trimethylsilyl)amine Ph2P–N(H)SiMe3 and iminophosphorane Ph3P=NSiMe3. The spectroscopic changes evidenced in the spectra were correlated with the structural parameters in order to provide insight as to what extent the P–N bond is affected by the coordination to the metal center. The employment of density functional theory (DFT) calculations in addition to these spectroscopic methods offers the possibility of predicting whether the Lewis-basic imido nitrogen atom is involved in coordination not only in the solid state, but also in the gas phase.

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