Absorption spectra of size‐selected solvated metal cations: Electronic states, symmetries, and orbitals in Sr+(NH3)1,2and Sr+(H2O)1,2

1991 ◽  
Vol 94 (5) ◽  
pp. 3322-3331 ◽  
Author(s):  
M. H. Shen ◽  
J. M. Farrar
Keyword(s):  
Absorption Spectra ◽  
Electronic States ◽  
Metal Cations

scholarly journals Cation Sensing Capabilities of A Nitrophenyl Cinnamaldehyde Derivative

Molekul ◽  
2020 ◽  
Vol 15 (3) ◽  
pp. 191
Author(s):  
Venty Suryanti ◽  
Fajar Rakhman Wibowo ◽  
Ahmad Marzuki ◽  
Meiyanti Ratna Kumala Sari
Keyword(s):  
Charge Transfer ◽  
Organic Compound ◽  
Charge Density ◽  
Absorption Spectra ◽  
Color Change ◽  
Metal Cations ◽  
Colorimetric Sensing ◽  
Color Changes ◽  
Ligand Charge Transfer ◽  
Cation Sensing

The cationic chemosensor based on organic compound bearing an aminophenol moiety as a receptor for metal analyte and a cinnamaldehyde moiety as chromophoric fragment has been developed. In this work, we report the colorimetric sensing of nitrophenyl cinnamaldehyde derivative, namely methyl-3-(2-hidroxy-5-nitrophenyl amino)-3-phenylpropanoate, towards a variety of metal cations, such as Cu2+, Fe3+, Ni2+ and Zn2+. The cation sensing abilities of the sensor were observed for Cu2+and Fe3+ with a color change from colorless to pink and faint yellow, respectively, The characteristic UV-Vis spectra changes were observed upon addition of Cu2+and Fe3+ cations. The hypsochromic absorption spectra shifts were obtained, indicating the cations and sensor complexations had formed. A metal-to-ligand-charge-transfer (MLCT) had occurred and the charge density of the sensor changed resulting in appearance of new absorption peaks in the UV-Vis spectra and color changes of the sensor solution upon addition of the Cu2+and Fe3+.  

The absorption spectrum of liquid bromine

1937 ◽  
Vol 162 (910) ◽  
pp. 414-419 ◽  
Author(s):  
D. Porret ◽  
Frederick George Donnan
Keyword(s):  
Absorption Spectrum ◽  
Absorption Spectra ◽  
Ground State ◽  
Wave Length ◽  
Electronic States ◽  
Excited Electronic States ◽  
Long Wave ◽  
Liquid Bromine ◽  
Continuous Absorption ◽  
The Continuum

The continuous absorption spectra of gaseous bromine (Peskow 1917; Ribaud 1919; Gray and Style 1929; Acton, Aikin and Bayliss 1936) and of dissolved bromine (Bovis 1929; Gillam and Morton 1929) have been studied many times. They present a wide continuum (from about 30, 000 to 17, 000 cm. -1 .) with a maximum at 24, 000 cm. -1 . For the gas the continuum is preceded by two band systems on the long wave-length side. These systems converge at 19, 585 and 15, 896 cm. -1 . respectively. Acton, Aikin and Bayliss (1936) have shown that the continuum is not simple, and Mulliken (1936) and Darbyshire (1937) have pointed out that there are three overlapping continua corresponding to transitions from the ground state to three different excited electronic states. There are 3 II 0 + ← 1 Σ g , 3 II 1 ← 1 Σ g and 1 II ← 1 Σ g . The absorption spectrum of liquid bromine has been studied by Bovis (1929) form 18, 525 to 31, 750c cm. -1 . and by Camichel (1893) for two frequencies only (16, 978 and 18, 691 cm. -1 ).

The simulation of X-ray absorption spectra from ground and excited electronic states using core-valence separated DFT/MRCI

2019 ◽  
Vol 151 (14) ◽  
pp. 144104 ◽  
Author(s):  
Issaka Seidu ◽  
Simon P. Neville ◽  
Martin Kleinschmidt ◽  
Adrian Heil ◽  
Christel M. Marian ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
Electronic States ◽  
Excited Electronic States ◽  
X Ray ◽  
X Ray Absorption

Absorption Spectra of Ground-State and Low-Lying Electronic States of Copper Nitrosyl: A Rare Gas Matrix Isolation Study

2005 ◽  
Vol 109 (45) ◽  
pp. 10264-10272 ◽  
Author(s):  
Lahouari Krim ◽  
Xuefeng Wang ◽  
Laurent Manceron ◽  
Lester Andrews
Keyword(s):  
Absorption Spectra ◽  
Ground State ◽  
Matrix Isolation ◽  
Electronic States ◽  
Rare Gas
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