Nitric Oxide-Triggered Bis-Trimethylenediaminecobalt(III)- Mediated Hydrolysis of Nitrophenylphosphate/ Sodium Pyrophosphate

摘要

The synergistic effects of cobalt trimethyle-nediamine and nitric oxide toward the hydrolysis of nitrophenylphosphate/sodium pyrophosphate for different reactant ratio were investigated. Sodium nitro-prusside under irradiation by UV light at 254 nm was utilized as nitric oxide donor in solutions. An increased hydrolysis was observed for activated phosphate moieties (nitrophenylphosphate/cobalt pyrophosphate) compared to that of pyrophosphate. The direct interaction of nitric oxide with the phosphorous center is presumed to be the reason for enhanced hydrolysis in those reaction solutions. This study demonstrates the possible role of nitric oxide in decontamination reactions of poorly biodegradable phosphate esters in natural waters due to phototransformation.