## Abstract ^1^H NMR spectra are reported for Michler's ketone and twenty of its derivatives, along with ^13^C chemical shifts for five of the compounds. ^1^H chemical shifts show only small changes with increasing substitution at the sterically hindered 2βposition. Estimates of the dihedral angle
On the anomalous luminescence of Michler's ketone: The importance of the local environment
β Scribed by P.R. Callis; R.W. Wilson
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 457 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
We believe that the nearly constant ratio of luminescence at 470 versus 495 u seen by Klapffer (1) foi hfK in solid ethanol may be explained by the fact that species III probably abso!bs only ca. 10 + 5% of the hght for h C 385 mu coupled with the fact that species II emits no less than half as stror@y at 495 nw as it does'at 470 n-w.
π SIMILAR VOLUMES
The effect of a magnetic field on the pyrene-N,N-dimethyIaniIine esciples luminescence in methanol has been studied using an improved phase-sensitive detection technique. The wavelength dependence of B,,z, the effect of isotopic substitution of the solvent, and the consequences of using mixed donors
The transition energy of the charge-transfer UV/Vis absorption maxima (# max, CT ) and the structure of the Michler's ketone (MK)-tetracyanoethene (TCNE) electron donor-acceptor (EDA) complex are remarkably solvent dependent. The UV/Vis spectra of the MK-TCNE complex were measured in 20 non-protic a