Abstract
A review. This review touches the most common instances where noninnocent (suspect) behavior of redox-active ligands, either substrates or supporting components, is obsd. in a biochem. context. These ligands include the O2/O2·-/O22-, NO+/NO·/NO-, o-quinone/o-semiquinone/catecholate and tyrosyl/tyrosinate redox systems, the tetrapyrrole (porphyrinic) ligands, the pterins and flavins, and the dithiolene/ene-dithiolate ligands in molybdo- and tungstopterin. These noninnocent ligands are discussed in their interaction with biol. iron, copper, manganese, molybdenum or tungsten centers. on SciFinder(R)
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