1989
DOI: 10.1016/1010-6030(89)80012-7
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Light-induced polymer and polymerization reactions XXXIII: direct photoinitiation of methyl methacrylate polymerization by excited states of ketones

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Cited by 57 publications
(26 citation statements)
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“…24,31,38 More generally, many aryl carbonyl compounds, such as ketones and aldehydes, are known for their high yields of excited triplet states. [39][40][41][42][43] Molecule ID566 has a high HER of 20.5 mol h -1 and is known for its thermally activated delayed fluorescence (TADF), 44 a process that entails the molecule harvesting triplet excitons. In general, triplet excitons have a longer lifetime than singlet excitons, which may be beneficial for allowing the photo-generated excitons on the molecule to participate in redox processes with the sacrificial agent and/or the Pt cocatalyst, rather than undergoing recombination to the ground state.…”
Section: Understanding the Important Molecular Features For Photocatalytic Activitymentioning
confidence: 99%
“…24,31,38 More generally, many aryl carbonyl compounds, such as ketones and aldehydes, are known for their high yields of excited triplet states. [39][40][41][42][43] Molecule ID566 has a high HER of 20.5 mol h -1 and is known for its thermally activated delayed fluorescence (TADF), 44 a process that entails the molecule harvesting triplet excitons. In general, triplet excitons have a longer lifetime than singlet excitons, which may be beneficial for allowing the photo-generated excitons on the molecule to participate in redox processes with the sacrificial agent and/or the Pt cocatalyst, rather than undergoing recombination to the ground state.…”
Section: Understanding the Important Molecular Features For Photocatalytic Activitymentioning
confidence: 99%
“…Το μέγιστο της απορρόφησης της θειοξανθόνης εντοπίζεται στην περιοχή των 400-410 nm και η θέση της δεν επηρεάζεται έντονα από την πολικότητα του διαλύτη. [86] Ο χρόνος ζωής της χαμηλότερης απλής διεγερμένης κατάστασης (τ S ) έχει υπολογιστεί στα 2 ns [355] σε ακετονιτρίλιο. [346,[356][357] 0,07 4,1 [358] 407 0,13 6,0 [356] Οι χαμηλότερες διεγερμένες απλές καταστάσεις της θειοξανθόνης, είναι αρκετά κοντά μεταξύ τους με αποτέλεσμα η φωτοχημεία της να επηρεάζεται έντονα από την πολικότητα του διαλύτη.…”
Section: χρωμοφόρο της θειοξανθόνηςunclassified
“…Στην περίπτωση της ξανθόνης το isc προς την τριπλή κατάσταση, πραγματοποιείται με ταχύτητα της τάξης των 10 ps και σε πολικούς διαλύτες μπορεί να γίνει ακόμα ταχύτερο. [350] H τριπλή κατάσταση της ξανθόνης εμφανίζει μέγιστο απορρόφησης στα 625- [131] 627 [133] 620 [173] 0,95 [133] 1 [355] 17,9 [76] 8,3 [368] 4,8 [355] 74,3 [346,355] 73,4 [369] 1-2 1,2 [355,363] C 6 H 12 610 [76,362] 605 [76] 623 [131] 5300 6480…”
Section: χρωμοφόρο της ξανθόνης (χν)unclassified
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