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Science 22 November 1996:
Vol. 274. no. 5291, pp. 1277 - 0
DOI: 10.1126/science.274.5291.1277b
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This Week in Science

Chemical reactions may be accompanied by emission of visible light, or chemiluminescence, if the energy created by the reaction is stored initially in an excited state that later decays. König et al. (p. 1353) report that formation of metal clusters can by accompanied by chemiluminescence. During cluster agglomeration in a noble gas matrix, formation of unstable intermediates is proposed to lead to emission of excited fragments, which decay while emitting visible light.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)