Low-Temperature Infrared Spectral Study of the Photochemical Reaction of (CO)5Cr:C(OMe)Ph with Solvent and Alkynes

1994 ◽  
Vol 13 (6) ◽  
pp. 2178-2185 ◽  
Author(s):  
Joseph R. Knorr ◽  
Theodore L. Brown
Keyword(s):  
Low Temperature ◽  
Spectral Study ◽  
Photochemical Reaction ◽  
Infrared Spectral

Low temperature infrared spectral study of iron(II) dioxygen complexes derived from a picket fence porphyrin

1974 ◽  
Vol 96 (20) ◽  
pp. 6522-6524 ◽  
Author(s):  
James P. Collman ◽  
Robert R. Gagne ◽  
Harry B. Gray ◽  
Jeffrey W. Hare
Keyword(s):  
Low Temperature ◽  
Spectral Study ◽  
Picket Fence ◽  
Infrared Spectral

Infrared spectral study of pentaco-ordinated cobalt (II) complexes of thiosemicarbazones

1976 ◽  
Vol 32 (3) ◽  
pp. 553-557 ◽  
Author(s):  
M.J.M Campbell ◽  
R. Grzeskowiak ◽  
R. Thomas ◽  
M. Goldstein
Keyword(s):  
Spectral Study ◽  
Infrared Spectral

scholarly journals ON/OFF Photostimulation of Isatin Bipyridyl Hydrazones: Photochemical and Spectral Study

Molecules ◽  
2019 ◽  
Vol 24 (14) ◽  
pp. 2668 ◽  
Author(s):  
Róbert Šandrik ◽  
Pavol Tisovský ◽  
Klaudia Csicsai ◽  
Jana Donovalová ◽  
Martin Gáplovský ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Spectral Study ◽  
Photochemical Reaction ◽  
Room Temperature ◽  
High Thermal Stability ◽  
Light Stimulation ◽  
Fluoride Ions ◽  
Isomerization Process

Four novel isatin hydrazones containing bipyridyl fragments were synthesized as potential ON/OFF switches. Hydrazone Z-isomers exhibit high thermal stability. The characteristic photochemical reaction for all studied hydrazones is the Z–E isomerization in CHCl3. After irradiation of hydrazones 1 and 2 in dimethylformamide (DMF), the photoreaction products are tautomers. When using light with the appropriate wavelength, the photo-tautomerization reaction is reversible. In these conditions, studied hydrazones have ON/OFF switch properties. In the case of hydrazones 1 and 2, by alternating heat and light stimulation it is possible to control the isomerization process reversibly. In the presence of fluoride ions, NH hydrogen from the studied hydrazones is cleaved, and the corresponding anions are formed. The resulting anions of Z-isomers are changed to the corresponding E-isomer at room temperature.

Electronic and infrared spectral study of chromium (III) derivatives of the type [Cr(NCS)4.(ligand)2]-

1967 ◽  
Vol 6 (9) ◽  
pp. 1625-1631 ◽  
Author(s):  
Martin Arthur Bennett ◽  
Robin J. H. Clark ◽  
Arthur D. J. Goodwin
Keyword(s):  
Spectral Study ◽  
Infrared Spectral ◽  
Derivatives Of

Synthesis, TG, DSC and infrared spectral study of NiMn2(C4H4O4)3·6N2H4

2006 ◽  
Vol 86 (3) ◽  
pp. 605-608 ◽  
Author(s):  
Reema A. Porob ◽  
Sitara Z. Khan ◽  
S. C. Mojumdar ◽  
V. M. S. Verenkar
Keyword(s):  
Spectral Study ◽  
Infrared Spectral

Near-infrared and visible luminescence and absorption spectroscopy of low-coordinate organometallic rhenium compounds

1996 ◽  
Vol 74 (1) ◽  
pp. 28-31
Author(s):  
Carole Savoie ◽  
Christian Reber
Keyword(s):  
Low Temperature ◽  
Near Infrared ◽  
Organic Ligands ◽  
Luminescence Spectra ◽  
Relaxation Processes ◽  
Nonradiative Relaxation ◽  
Visible Luminescence ◽  
Infrared Spectral ◽  
Absorption And Luminescence Spectra ◽  
Stokes Shifts

Low-temperature absorption and luminescence spectra of four organorhenium compounds were measured in the visible and near-infrared spectral regions. Effects of the temperature, formal oxidation state, and the oxo-, bromo-, and organic ligands on the metal center are reported. The emission maxima of the four compounds show a large variation between 9000 and 14 200 cm−1. Stokes shifts show a smaller variation from 3700 to 4200 cm−1. Luminescence intensities are used to qualitatively characterize nonradiative relaxation processes. Key words: luminescence spectra, absorption spectra, organorhenium compounds.

Sign in / Sign up

Export Citation Format

Share Document