Synthesis and reactivity of compounds with cyclobutane ring (s). 11.[2+ 2] Cycloadditions of tetraalkoxyethylenes with ketenes: a general route to 2-substituted 1- …
D Bellus
Index: Bellus,D. Journal of the American Chemical Society, 1978 , vol. 100, # 25 p. 8026 - 8028
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Citation Number: 36
Abstract
Figure 2. Fluorescence emission spectra:(a) fluoranthene in polystyrene film (excitation at 337 nm);(b) perylene deposited in vacuo from a cold vapor on polystyrene (coverage, 1.6 ng/cm2, excitation at 390 nm);(c) fluoranthene in polystyrene with perylene overlay at 9.1 ng/cm2 (curve 1 is emission excited at 337 nm; curve 2 shows direct excitation of perylene surface layer which emits 478 nm);(d) system in c with 20-A gold overlay added (intensity ...
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