Access to Extended Polyphosphorus Frameworks

摘要

The activation of P4 is an current topic in chemistry. Recently, a big impact was made by main-group elements that are able to open one, two,or three P—P bonds and can degrade the P4 moiety to a P2 or P1 unit. Aggregation of P4 by N-heterocyclic carbenes (NHCs) has also shown that the large P_(12) unit in A can be achieved. Moreover, larger cationic P_n~+ (n ≤ 89) and anionic P_n~- (n ≤ 49) polyphosphorus species have been generated in the gas phase using laser ablation techniques. Earlier investigations in organic solvents by Baudler and co-workers led to a large number of organo-substituted polyphosphorus compounds. They have also achieved the synthesis of mixtures of the larger polyphos-phides, such as P_(16)~(2-), P_(19)~(3-), and P_(21) Some of these structures were partially isolated and structurally characterized as was the polyphosphide P_(26)~(4-).