Synthesis,Structure,and Spectroscopy of an Oxodiiron(ll) Complex

摘要

Diiron units with bridging oxygen ligands (i.e.O~(2-) ,OH~-,or H_2O) are present in metalloenzymes such as methane monooxy-genase,DELTA~9-desaturase,and ribonucleotide reductase.In these enzymes,the Fe2 unit is bridged by one or two oxygen-based ligands.As these enzymes activate O_2 and transfer oxygen atoms to various substrates,the iron centers pass through several oxidation states from Fe~(II)Fe~(II) to Fe~(IV)Fe~(IV).