Coherent vibration and ultrafast dynamics upon bond formation in excited dimers of an Au(i) complex

2016 ◽  
Vol 18 (7) ◽  
pp. 5103-5107 ◽  
Author(s):  
Munetaka Iwamura ◽  
Ryo Wakabayashi ◽  
Junichi Maeba ◽  
Koichi Nozaki ◽  
Satoshi Takeuchi ◽  
...  
Keyword(s):  
Bond Formation ◽  
Ultrafast Dynamics ◽  
Coherent Vibration

Au–Au bond strengthening in photoexcited dimers of an Au(i) complex is captured in solution as oscillations of femtosecond absorption signals.

scholarly journals Coherent Vibration and Femtosecond Dynamics of the Platinum Complex Oligomers upon Intermolecular Bond Formation in the Excited State

2020 ◽  
Vol 59 (51) ◽  
pp. 23154-23161
Author(s):  
Munetaka Iwamura ◽  
Airi Fukui ◽  
Koichi Nozaki ◽  
Hikaru Kuramochi ◽  
Satoshi Takeuchi ◽  
...  
Keyword(s):  
Excited State ◽  
Bond Formation ◽  
Platinum Complex ◽  
Intermolecular Bond ◽  
Femtosecond Dynamics ◽  
Coherent Vibration

scholarly journals Bond formation dynamics of dicyanoaurate in the first excited singlet state

2019 ◽  
Vol 205 ◽  
pp. 09021
Author(s):  
So Hyeong Sohn ◽  
Taiha Joo
Keyword(s):  
Wave Packet ◽  
Fluorescence Spectra ◽  
Singlet State ◽  
Bond Formation ◽  
Excited Singlet State ◽  
Time Resolved Fluorescence ◽  
Excited Singlet ◽  
Time Resolved ◽  
Formation Dynamics ◽  
Coherent Vibration

Time-resolved fluorescence of [Au(CN)2−]3 in water reveals a coherent vibration of 74 cm-1. A massive non-Condon effect, proved unambiguously by time-resolved fluorescence spectra, demonstrates that the wave packet motion arises from the coherent bond formation.

scholarly journals Ultrafast dynamics of multi-exciton state coupled to coherent vibration in zinc chlorin aggregates for artificial photosynthesis

2017 ◽  
Vol 25 (24) ◽  
pp. 29667 ◽  
Author(s):  
Tongchao Shi ◽  
Zhengzheng Liu ◽  
Tomohiro Miyatake ◽  
Hitoshi Tamiaki ◽  
Takayoshi Kobayashi ◽  
...  
Keyword(s):  
Artificial Photosynthesis ◽  
Exciton State ◽  
Ultrafast Dynamics ◽  
Coherent Vibration

scholarly journals Innenrücktitelbild: Coherent Vibration and Femtosecond Dynamics of the Platinum Complex Oligomers upon Intermolecular Bond Formation in the Excited State (Angew. Chem. 51/2020)

2020 ◽  
Vol 132 (51) ◽  
pp. 23547-23547
Author(s):  
Munetaka Iwamura ◽  
Airi Fukui ◽  
Koichi Nozaki ◽  
Hikaru Kuramochi ◽  
Satoshi Takeuchi ◽  
...  
Keyword(s):  
Excited State ◽  
Bond Formation ◽  
Platinum Complex ◽  
Intermolecular Bond ◽  
Femtosecond Dynamics ◽  
Coherent Vibration

scholarly journals Coherent Vibration and Femtosecond Dynamics of the Platinum Complex Oligomers upon Intermolecular Bond Formation in the Excited State

2020 ◽  
Vol 132 (51) ◽  
pp. 23354-23361
Author(s):  
Munetaka Iwamura ◽  
Airi Fukui ◽  
Koichi Nozaki ◽  
Hikaru Kuramochi ◽  
Satoshi Takeuchi ◽  
...  
Keyword(s):  
Excited State ◽  
Bond Formation ◽  
Platinum Complex ◽  
Intermolecular Bond ◽  
Femtosecond Dynamics ◽  
Coherent Vibration

Stereodivergent Alkyne Hydrofluorination Using a Simple Practical Reagent

2020 ◽  
Author(s):  
Rui Guo ◽  
Xiaotian Qi ◽  
Hengye Xiang ◽  
Paul Geaneoates ◽  
Ruihan Wang ◽  
...  
Keyword(s):  
Bond Formation ◽  
Biologically Active ◽  
Dft Studies ◽  
Thermodynamic Control ◽  
Important Goal ◽  
Peptide Bonds ◽  
Metal Free ◽  
Vinyl Cation ◽  
E And Z Isomers ◽  
Vinyl Fluorides

Vinyl fluorides play an important role in drug development as they serve as bioisosteres for peptide bonds and are found in a range of biologically active molecules. The discovery of safe, general and practical procedures to prepare vinyl fluorides remains an important goal and challenge for synthetic chemistry. Here we introduce an inexpensive and easily-handled reagent and report simple, scalable, and metal-free protocols for the regioselective and stereodivergent hydrofluorination of alkynes to access both the E and Z isomers of vinyl fluorides. These conditions were suitable for a diverse collection of alkynes, including several highly-functionalized pharmaceutical derivatives. Mechanistic and DFT studies support C–F bond formation through a vinyl cation intermediate, with the (E)- and (Z)-hydrofluorination products forming under kinetic and thermodynamic control, respectively.<br>

Sign in / Sign up

Export Citation Format

Share Document