2012
DOI: 10.1002/ange.201204162
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A One‐Step Four‐Bond‐Breaking Reaction Catalyzed by an Electron

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Cited by 38 publications
(2 citation statements)
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“…This carbene has been generated from a norbornadiene spiro ketal, and it cleanly fragmented into CO 2 and ethylene [30]. Theoretical calculations support the low barrier for fragmentation [31]. We explain the different reaction behaviour of our spiroketal 1 by the fact that two energetically unfavourable products would have to be formed (a quinodimethane and a carbene), whereas the fragmentation of the norbornadiene ketal gives benzene and a carbene.…”
Section: Discussionmentioning
confidence: 92%
“…This carbene has been generated from a norbornadiene spiro ketal, and it cleanly fragmented into CO 2 and ethylene [30]. Theoretical calculations support the low barrier for fragmentation [31]. We explain the different reaction behaviour of our spiroketal 1 by the fact that two energetically unfavourable products would have to be formed (a quinodimethane and a carbene), whereas the fragmentation of the norbornadiene ketal gives benzene and a carbene.…”
Section: Discussionmentioning
confidence: 92%
“…To our knowledge charge -delocalization has not previously been proposed as the cause of reaction in physisorbed molecular chains at surfaces. Very recently Davis and co-workers [22] have shown by theory that multibond breaking should be possible in a single gaseous molecule, having non-local antibonding; they predict a remarkable four-bond breaking, but without investigation of the molecular dynamics. In the present case of molecular chains, the antibonding orbital overlap between adjacent molecules is shown in Figure 4 for the gas-phase analogue of dimethyldisulfide molecules arranged as they would be when adsorbed on Au(111).…”
Section: Zhanyu Ning and John C Polanyi*mentioning
confidence: 99%