0000000001312377
AUTHOR
Arne Güttler
Strong Emission Enhancement in pH-Responsive 2:2 Cucurbit[8]uril Complexes
Organic fluorophores, particularly stimuli-responsive molecules, are very interesting for biological and material sciences applications, but frequently limited by aggregation- and rotation-caused photoluminescence quenching. A series of easily accessible bipyridinium fluorophores, whose emission is quenched by a twisted intramolecular charge-transfer (TICT) mechanism, is reported. Encapsulation in a cucurbit[7]uril host gave a 1:1 complex exhibiting a moderate emission increase due to destabilization of the TICT state inside the apolar cucurbituril cavity. A much stronger fluorescence enhancement is observed in 2:2 complexes with the larger cucurbit[8]uril, which is caused by additional con…
Strong Emission Enhancement in pH‐Responsive 2:2 Cucurbit[8]uril Complexes
Organic fluorophores, particularly stimuli-responsive molecules, are very interesting for biological and material sciences applications, but frequently limited by aggregation- and rotation-caused photoluminescence quenching. A series of easily accessible bipyridinium fluorophores, whose emission is quenched by a twisted intramolecular charge-transfer (TICT) mechanism, is reported. Encapsulation in a cucurbit[7]uril host gave a 1:1 complex exhibiting a moderate emission increase due to destabilization of the TICT state inside the apolar cucurbituril cavity. A much stronger fluorescence enhancement is observed in 2:2 complexes with the larger cucurbit[8]uril, which is caused by additional con…
CCDC 1867147: Experimental Crystal Structure Determination
Related Article: Stefan Schoder, Hendrik V. Schröder, Luca Cera, Rakesh Puttreddy, Arne Güttler, Ute Resch‐Genger, Kari Rissanen, Christoph A. Schalley|2019|Chem.-Eur.J.|25|3257|doi:10.1002/chem.201806337
CCDC 1867144: Experimental Crystal Structure Determination
Related Article: Stefan Schoder, Hendrik V. Schröder, Luca Cera, Rakesh Puttreddy, Arne Güttler, Ute Resch‐Genger, Kari Rissanen, Christoph A. Schalley|2019|Chem.-Eur.J.|25|3257|doi:10.1002/chem.201806337
CCDC 1867143: Experimental Crystal Structure Determination
Related Article: Stefan Schoder, Hendrik V. Schröder, Luca Cera, Rakesh Puttreddy, Arne Güttler, Ute Resch‐Genger, Kari Rissanen, Christoph A. Schalley|2019|Chem.-Eur.J.|25|3257|doi:10.1002/chem.201806337
CCDC 1867145: Experimental Crystal Structure Determination
Related Article: Stefan Schoder, Hendrik V. Schröder, Luca Cera, Rakesh Puttreddy, Arne Güttler, Ute Resch‐Genger, Kari Rissanen, Christoph A. Schalley|2019|Chem.-Eur.J.|25|3257|doi:10.1002/chem.201806337
CCDC 1867146: Experimental Crystal Structure Determination
Related Article: Stefan Schoder, Hendrik V. Schröder, Luca Cera, Rakesh Puttreddy, Arne Güttler, Ute Resch‐Genger, Kari Rissanen, Christoph A. Schalley|2019|Chem.-Eur.J.|25|3257|doi:10.1002/chem.201806337
CCDC 1867142: Experimental Crystal Structure Determination
Related Article: Stefan Schoder, Hendrik V. Schröder, Luca Cera, Rakesh Puttreddy, Arne Güttler, Ute Resch‐Genger, Kari Rissanen, Christoph A. Schalley|2019|Chem.-Eur.J.|25|3257|doi:10.1002/chem.201806337