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This review deals with the chemistry and coordination complexes of isoelectronic analogues of common oxo-anions of phosphorus such as PO3-, PO43-, RPO32- and R2PO2-. The article begins with a discussion of homoleptic systems in which all of the oxo ligands are replaced by imido (NR) groups. This is followed by an account of heteroleptic phosphorus-centered...
The redox behaviour of dichalcogeno PNP- and PCP-bridged anions of the type [X(PR2E)2]- (X = N, CH) is compared with an emphasis on the heavy chalcogens (E = Se, Te). The oxidation of the N-bridged anions results exclusively in chalcogen-chalcogen bond formation to give either acyclic or cyclic species. By contrast, the C-bridged systems exhibit carbon-centred reactivity which, in the presence of...
Recent developments in the chemistry of imido and amido derivatives of selenium and tellurium in the +4, +2 and lower oxidation states are discussed. The focus is on providing an understanding of the unusual features of the structures, bonding and reactivities of these labile chalcogen-nitrogen compounds. Trends in properties within the chalcogen group are made by including comparisons with analogous...
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