Heterodiazocines: Synthesis and Photochromic Properties, Trans to Cis Switching within the Bio-optical Window.
Diazocines, bridged azobenzenes, exhibit superior photophysical properties compared to parent azobenzenes such as high switching efficiencies, quantum yields, and particularly switching wavelengths in the visible range. Synthesis, however, proceeds with low yields, and derivatives are difficult to prepare. We now present two heterodiazocines which are easier to synthesize, and the general procedures should also provide facile access to derivatives. Moreover, both compounds can be switched with light in the far-red (650 nm). Accessibility and photophysical properties make them ideal candidates for applications such as photoswitchable drugs and functional materials.
Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel , Otto Hahn Platz 4, 24118 Kiel, Germany.
Melanie
M
Hammerich
Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel , Otto Hahn Platz 4, 24118 Kiel, Germany.
Christian
C
Schütt
Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel , Otto Hahn Platz 4, 24118 Kiel, Germany.
Cosima
C
Stähler
Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel , Otto Hahn Platz 4, 24118 Kiel, Germany.
Pascal
P
Lentes
Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel , Otto Hahn Platz 4, 24118 Kiel, Germany.
Fynn
F
Röhricht
Institute for Physical Chemistry, Christian Albrechts University Kiel , Max-Eyth-Str. 2, 24118 Kiel, Germany.
Ronja
R
Höppner
Otto Diels-Institute of Organic Chemistry, Christian Albrechts University Kiel , Otto Hahn Platz 4, 24118 Kiel, Germany.
Rainer
R
Herges