ABSTRACT: Azobenzene functionalized with ortho-fluo-rine atoms has a lower energy of the n-orbital of the Z-isomer, resulting in a separation of the E and Z isomers’ n→π * absorption bands. Introducing para-substituents allows for further tuning of the absorption spectra of o-fluoroazobenzenes. In particular, electron-withdrawing ester groups give rise to a 50 nm separation of the n→ π * transitions. Green and blue light can therefore be used to induce E→Z and Z→E isomerizations, respectively. The o-fluoroazobenzene scaffold is readily synthesized and can be inserted into larger structures via its aryl termini. These new azobenzene derivatives can be switched in both ways with high photoconversions, and their Z-isomers display a remarkably ...
Molecular photoswitches triggered with red or NIR light are optimal for photomodulation of complex b...
2,2'-Dihydroxyazobenzene (DAB), 2,2'-azotoluene (AT) and azobenzene (AB) were isolated in argon and ...
Ortho-Fluorazobenzole stellen eine der interessantesten Familien von Azobenzolen dar, die mit sichtb...
Azobenzene functionalized with <i>ortho</i>-fluorine atoms has a lower energy of the n-orbital of th...
Improving the photochemical properties of molecular photoswitches is crucial for the development of ...
Thermally stable photoswitches that are driven with low-energy light are rare, yet crucial for exten...
We present a series of visible-light-absorbing azobenzene photoswitches with cis-lifetimes ranging f...
Azobenzene undergoes reversible cis↔ trans photoisomerization upon irradiation. Substituents often c...
none6noShape-persistent azobenzene tetramers functionalized at the periphery with alkyloxy substitue...
The development of multicomponent chemical systems that can perform predetermined functions under e...
We report a novel class of star-shaped multiazobenzene photoswitches comprising individual photochro...
The development of nanoscale systems capable to perform specific functions under external control is...
The photoisomerization of azobenzenes provides a general means for the photocontrol of molecular str...
We computationally dissected the electronic and geometrical influences of ortho-chlorinated azobenze...
The E-Z photoisomerization of azobenzene - owing to its high efficiency, excellent reversibility and...
Molecular photoswitches triggered with red or NIR light are optimal for photomodulation of complex b...
2,2'-Dihydroxyazobenzene (DAB), 2,2'-azotoluene (AT) and azobenzene (AB) were isolated in argon and ...
Ortho-Fluorazobenzole stellen eine der interessantesten Familien von Azobenzolen dar, die mit sichtb...
Azobenzene functionalized with <i>ortho</i>-fluorine atoms has a lower energy of the n-orbital of th...
Improving the photochemical properties of molecular photoswitches is crucial for the development of ...
Thermally stable photoswitches that are driven with low-energy light are rare, yet crucial for exten...
We present a series of visible-light-absorbing azobenzene photoswitches with cis-lifetimes ranging f...
Azobenzene undergoes reversible cis↔ trans photoisomerization upon irradiation. Substituents often c...
none6noShape-persistent azobenzene tetramers functionalized at the periphery with alkyloxy substitue...
The development of multicomponent chemical systems that can perform predetermined functions under e...
We report a novel class of star-shaped multiazobenzene photoswitches comprising individual photochro...
The development of nanoscale systems capable to perform specific functions under external control is...
The photoisomerization of azobenzenes provides a general means for the photocontrol of molecular str...
We computationally dissected the electronic and geometrical influences of ortho-chlorinated azobenze...
The E-Z photoisomerization of azobenzene - owing to its high efficiency, excellent reversibility and...
Molecular photoswitches triggered with red or NIR light are optimal for photomodulation of complex b...
2,2'-Dihydroxyazobenzene (DAB), 2,2'-azotoluene (AT) and azobenzene (AB) were isolated in argon and ...
Ortho-Fluorazobenzole stellen eine der interessantesten Familien von Azobenzolen dar, die mit sichtb...