Absorption Spectra of Pure Liquid Benzene in the Ultraviolet Region

1972 ◽  
Vol 57 (6) ◽  
pp. 2526-2530 ◽  
Author(s):  
Takashi Inagaki
Keyword(s):  
Absorption Spectra ◽  
Ultraviolet Region ◽  
Pure Liquid ◽  
Liquid Benzene

Absorption spectra of volatile aromatic hydrocarbon films in the vacuum ultraviolet region

1982 ◽  
Vol 71 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Shojun Hino ◽  
Tamás Veszprémi ◽  
Koichi Ohno ◽  
Hiroo Inokuchi ◽  
Kazuhiko Seki
Keyword(s):  
Aromatic Hydrocarbon ◽  
Absorption Spectra ◽  
Vacuum Ultraviolet ◽  
Ultraviolet Region ◽  
Hydrocarbon Films ◽  
Vacuum Ultraviolet Region

Absorption spectra of alkali cyanide molecules in the vacuum-ultraviolet region: transitions to dissociative and predissociative states

1994 ◽  
Vol 98 (5) ◽  
pp. 1407-1410 ◽  
Author(s):  
Hisato Yasumatsu ◽  
Tamotsu Kondow ◽  
Kaoru Suzuki ◽  
Kiyohiko Tabayashi ◽  
Kosuke Shobatake
Keyword(s):  
Absorption Spectra ◽  
Vacuum Ultraviolet ◽  
Ultraviolet Region ◽  
Vacuum Ultraviolet Region

Polarized Crystal Absorption Spectra of Pd(II) and Pt(II) Tetrahalo and Tetrathiocyanato Complexes

1979 ◽  
Vol 34 (2) ◽  
pp. 211-219
Author(s):  
W. Tuszynski ◽  
G. Gliemann
Keyword(s):  
Single Crystal ◽  
Absorption Spectra ◽  
Theoretical Calculations ◽  
Electron Interaction ◽  
Ultraviolet Region ◽  
Ligand Field ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Near Ultraviolet ◽  
Spectral Assignment

Abstract Single crystal absorption spectra of tetrachloro, tetrabromo, and tetrathiocyanato complexes of Pd(II) and Pt(II) have been measured in the visible and near-ultraviolet region at temperatures between 10 K and 295 K. A spectral assignment of the observed d-d transitions based on ligand field theoretical calculations including electron-electron interaction and spin-orbit coupling is proposed which is consistent for all the systems investigated

Absorption spectra of SrH in the ultraviolet region

1976 ◽  
Vol 9 (13) ◽  
pp. 2313-2320 ◽  
Author(s):  
M A Khan ◽  
M Rafi ◽  
I A Khan ◽  
M A Baig
Keyword(s):  
Absorption Spectra ◽  
Ultraviolet Region

Reproduction of the UV-vis spectra of boron subphthalocyanine chloride in different solvents using time-dependent generalized Kohn–Sham density functionals with first solvation shell

2018 ◽  
Vol 22 (08) ◽  
pp. 670-678 ◽  
Author(s):  
Xue Chen ◽  
Wenlan Chen ◽  
Shaohui Zheng
Keyword(s):  
Absorption Spectra ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Solvation Shell ◽  
Photon Absorption ◽  
Ultraviolet Region ◽  
Density Functionals ◽  
Research Fields ◽  
Boron Subphthalocyanine ◽  
Experimental Absorption

Because of the unique physical, chemical and optical characteristics of boron subphthalocyanine chloride, it has been widely applied in different research fields and attracted global researchers. Deep insight into its UV-vis spectrum is required to understand the mechanism of the photon absorption of boron subphthalocyanine chloride in its condensed phase. In the present work, we utilize generalized Kohn–Sham density functionals with a non-equilibrium solvation model to simulate the UV-vis spectra of boron subphthalocyanine chloride in different solvents. Without considering the first solvation shell, we find that the slopes of lines drawn with [Formula: see text]B97XD and CAM-B3LYP results vs. experimental absorption wavelengths are close to 1.0 and root–mean–square deviations are less than 40 nm. We also find that the inclusion of the first solvation shell surrounding boron subphthalocyanine chloride monomers generally makes the calculated results worse. Finally, we discover that the simulated results overestimate oscillator strength of electronic absorption spectra in the ultraviolet region with respect to experimental spectra. These results imply that it may be important to consider the aggregation of solute molecules in order to understand the electronic absorption spectra of subPC in solution

scholarly journals Detection of Pigments and Natural Colorants from Thai Herbal Plants for Possible Use as Coloring Dyes

HortScience ◽  
2011 ◽  
Vol 46 (2) ◽  
pp. 265-272 ◽  
Author(s):  
Panthip Boonsong ◽  
Natta Laohakunjit ◽  
Orapin Kerdchoechuen ◽  
Frank B. Matta
Keyword(s):  
Absorption Spectra ◽  
High Performance ◽  
Visible Region ◽  
Extraction Methods ◽  
Ultraviolet Region ◽  
Chlorophyll B ◽  
Natural Colorants ◽  
Complete Extraction ◽  
Percentage Yield ◽  
Herbal Plants

Fourteen Thai herbal plants were extracted using methanol, ethanol, and acetone. Comparison of the various extraction methods for pigments and polyphenols (colorants) showed that methanol provided a more complete extraction than ethanol and acetone. Percentage yield ranged from 1.7 to 40.7 and was dependent on the plant extracted and solubility of pigments and polyphenols (colorants) extracted by the various solvents. The absorption spectra of pigments and polyphenols (colorants) in the plant extract were present in the visible region (351 to 665 nm) and the absorption spectra of polyphenols were present in the ultraviolet region (200 to 349 nm). Color of plant extracts varied and included violet–blue, yellow–green, red, orange–red, gray–purple, blue–green, gray–orange, gray–yellow, and black. High-performance liquid chromatography (HPLC) was used to separate and identify compounds of plant pigments and polyphenols (colorants). Ya-nang had the greatest number of peaks and chlorophyll A and chlorophyll B were found only in Ya-nang. Numerous pigments and polyphenols were detected. Such compounds have the potential to be used as coloring dyes.

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