Synthesis of extended covalently bound porphyrins on Au(111) surface

Covalently bound Flavin Coenzymes.

Following elucidation of the structures of the flavin components of succinate dehydrogenase (SD) as N (3)-histidyl-8a-FAD and of monoamine oxidase (MAO) as cysteinyl-8a-FAD and determination of the peptide sequences around the flavin sites of these enzymes, attention has been focused on the covalently bound FAD of Chromatium cytochrome c-552. As documented in preliminary communications, the FAD...

Quantitative evaluation of covalently bound molecules on GaP (100) surfaces

Synthesis of Binuclear Copper (II) Complexes with Expanded Porphyrins

The synthesis and characterization of some new binuclear copper (II) complexes, based on the use of large, pyrole-containing macrocycles, the so called "expanded porphyrins", [Cu2(macrocycle)]+4 is described. Electron Spin Resonance (ESR) studies indicate a weak "half-field line", which is characteristic of the Cu(II)-Cu(II) dimer, is observed at about 1600G. The obser...

Facile electrosynthesis of π-extended porphyrins.

The facile electrosynthesis of π-extended porphyrins is demonstrated for a series of Zn(II), In(III), Ir(III) and free-base meso-substituted derivatives containing the 4,7-dimethoxynaphthalen-1-yl substituent. Electrochemical data suggest that the overall process initially involves two stepwise one-electron oxidations, followed by an intramolecular oxidative aromatic coupling to give the electr...

Initiators Based on Benzaldoximes: Bimolecular and Covalently Bound Systems

Typical bimolecular photoinitiators (PIs) for radical polymerization of acrylates show only poor photoreactivity because of the undesired effect of back electron transfer. To overcome this limitation, PIs consisting of a benzaldoxime ester and various sensitizers based on aromatic ketones were introduced. The core of the photoinduced reactivity was established by laser flash photolysis, photo-C...