Photoinduced deoxygenation of dibenzothiophene S-oxide (DBTO) has been suggested to release atomic oxygen [O((3)P)]. To expand the conditions and applications where O((3)P) could be used, generation of O((3)P) at longer wavelengths was desirable. The sulfoxides benzo[b]naphtho-[1,2,d]thiophene S-oxide, benzo[b]naphtho[2,1,d]thiophene S-oxide, benzo[b]phenanthro[9,10-d]thiophene S-oxide, dinapht...

Photolysis of N-benzoyl-S,S-diphenylsulfilimine or N-benzoyl dibenzothiophene sulfilimine produces PhNCO and also benzoylnitrene. Direct observation of the triplet nitrene, energetic differences between the singlet and triplet state of the nitrene, and oxygen quenching experiments suggest that the triplet nitrene derives from the triplet excited state of the sulfilimine precursors, rather than ...

A putative gentisate 1,2-dioxygenase was encoded in the dibenzothiophene degradation gene cluster (dbd) from Xanthobacter polyaromaticivorans 127W. The deduced amino acid sequence showed high sequence similarity with gentisate dioxygenases from Pseudomonas alcaligenes (AAD49427, 65% identical), Bradyrhizobium japonicum (NP_766750, 64%), and P. aeruginosa (ZP_00135722, 54%), and moderate similar...

Cobalt molybdenum catalysts supported on novel activated carbon-HZSM-5 composites with different mass ratios were prepared by wet-impregnation method and pre-sulfided CS2. Characterization of these was done using X-ray powder diffraction, Fourier transform infrared spectroscopy, N2 adsorption-desorption, scanning electron microscope analytics. Their activity for the hydrodesulfurization reactio...

    Combustion of sulfur components of fossil fuels such as oil causes the emission of SO2 in the atmosphere and lead to the formation of acidic rain in the environment. The conventional approach for desulfurization of fossil fuels is the chemical procedure of hydrodesulfurization (HDS). However, this method has low efficiency for desulfurization of ring components of sulfur such as dibenzothio...