CoPc and CoPcF16 on gold: Site-specific charge-transfer processes

CoPc and CoPcF16 on gold: Site-specific charge-transfer processes

Interface properties of cobalt(II) phthalocyanine (CoPc) and cobalt(II) hexadecafluoro-phthalocyanine (CoPcF16) to gold are investigated by photo-excited electron spectroscopies (X-ray photoemission spectroscopy (XPS), ultraviolet photoemission spectroscopy (UPS) and X-ray excited Auger electron spectroscopy (XAES)). It is shown that a bidirectional charge transfer determines the interface ener...

Specific site binding of metal ions on the intramolecular charge transfer fluorophore in micelles.

The binding interactions of Cu(2+), an essential trace metal ion, and Cd(2+), a deleterious metal ion, with 2-(4'-N,N-dimethylaminophenyl)oxazolo[4,5-b]pyridine (DMAPOP) were studied in acetonitrile and sodium dodecyl sulphate (SDS). The studies show that the surfactant can formulate the metal ions to bind at a specific binding site. In acetonitrile, the Cu(2+) binds at the dimethylamino nitrog...

Ultrafast charge transfer processes in solution

Charge transfer reactions in solution are of fundamental importance in many areas of chemistry and biology. As commonly accepted, electron transfer reaction is regarded as the simplest chemical reaction because of the absence of bond-breaking and bondforming processes. It plays a key role in biocatalysis and in photosynthesis. On the other hand, neutralisation reactions between Brønsted acids a...

Charge Transfer Within Multilayered Films of Gold Nanorods

Determination of Trimethoprim Based on Charge-Transfer Complexes Formation

A spectrophotometric study concerning the interaction between Trimethoprim (TMP) ,Sulfamethoxazole (SFMx), as n-donor and 2,3-dichloro-5,6- dicyano-P-benzoquinine (DDQ) and chloranilic acid (CA) as π-acceptor were been performed at 25°C. The results of interaction of CA and DDQwith TMP indicate the formation of a 1:1, 1:2, charge transfer complexes through non equilibrium reactions. In the case...