Iron-Catalyzed C(sp3)–H Alkylation through Ligand-to-Metal Charge Transfer

Synlett ◽  
2021 ◽  
Author(s):  
Tomislav Rovis ◽  
Yi Cheng Kang ◽  
Sean M. Treacy
Keyword(s):  
Charge Transfer ◽  
Functional Groups ◽  
Catalytic Cycle ◽  
Hydrogen Atoms ◽  
Metal Charge ◽  
Alkyl Radicals ◽  
Chlorine Radicals ◽  
Metal Charge Transfer ◽  
Iron Center

AbstractWe report the FeCl3-catalyzed alkylation of nonactivated C(sp3)–H bonds. Photoinduced ligand-to-metal charge transfer at the iron center generates chlorine radicals that then preferentially abstract hydrogen atoms from electron-rich C(sp3)–H bonds distal to electron-withdrawing functional groups. The resultant alkyl radicals are trapped by electron-deficient olefins, and the catalytic cycle is closed by Fe(II) recombination and protodemetalation.

Tuning metal to metal charge transfer properties in cyanidometal-bridged complexes by changing the auxiliary ligand on the bridge

2021 ◽  
Author(s):  
Qing-Dou Xu ◽  
Chen Zeng ◽  
Shao-Dong Su ◽  
Yu-Ying Yang ◽  
Sheng-Min Hu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Auxiliary Ligand ◽  
Metal Charge ◽  
Transfer Properties ◽  
Metal Charge Transfer

This work shows that the energy of MMCT in cyanidometal-bridged complexes can be tuned systematically by changing the auxiliary ligand of the cyanidometal bridge.

The fluorescence properties of tiara like structural thiolated palladium clusters

2017 ◽  
Vol 46 (38) ◽  
pp. 12964-12970 ◽  
Author(s):  
Jishi Chen ◽  
Yanze Pan ◽  
Zonghua Wang ◽  
Peng Zhao
Keyword(s):  
Charge Transfer ◽  
Fluorescence Properties ◽  
Metal Charge ◽  
Palladium Clusters ◽  
Metal Charge Transfer

A series of tiara like structural Pdn(SR)2n (5 ≤ n ≤ 20) nanoclusters exhibit emission at 620 nm with excitation at around 268 nm. Their emission is due to ligand to metal charge transfer.

Sign in / Sign up

Export Citation Format

Share Document