ChemInform Abstract: GROUP IB ORGANOMETALLIC CHEMISTRY. XXIII. REACTIONS OF AR4CU2LI2 AND AR4AU2LI2 WITH RHODIUM(I) COMPLEXES- SYNTHESIS OF 2-((DIMETHYLAMINO)METHYL)PHENYLRHODIUM DICARBON MONOXIDE, AND ELECTRON-TRANSFER INDUCED SELECTIVE FORMATION OF DIAR

1978 ◽  
Vol 9 (28) ◽  
Author(s):  
G. VAN KOTEN ◽  
J. T. B. H. JASTRZEBSKI ◽  
J. G. NOLTES
Keyword(s):  
Electron Transfer ◽  
Organometallic Chemistry ◽  
Abstract Group ◽  
Selective Formation

Supramolecular Complexation of Porphyrin and Quinone with Two Coordination Bonds and Intramolecular Electron Transfer

1997 ◽  
Vol 01 (01) ◽  
pp. 55-66 ◽  
Author(s):  
HIROSHI IMAHORI ◽  
KOJI YAMADA ◽  
EIICHI YOSHIZAWA ◽  
KIYOSHI HAGIWARA ◽  
TADASHI OKADA ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Intramolecular Electron Transfer ◽  
Nmr Studies ◽  
Guest Molecules ◽  
H Nmr ◽  
Molecular Mechanics Calculation ◽  
Coordination Bonds ◽  
Supramolecular Complexation ◽  
Selective Formation ◽  
Porphyrin Dimer

V-shaped zinc porphyrin dimer and quinone with two pyridyl groups have been rationally designed and synthesized to assemble a porphyrin-quinone supramolecule with two coordination bonds. Selective formation of the 1:1 bridging structure between the host-guest molecules was seen by 1 H NMR and UV-Vis absorption spectroscopy. Molecular mechanics calculation suggests that the bridging structure has rigidity as well as flexibility in geometry between the redox pair, which supports the interpretation of 1 H NMR studies. Intramolecular photoinduced electron transfer from the excited singlet state of the porphyrin to the quinone was observed by steady-state fluorescence spectra and picosecond fluorescence lifetime measurements.

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