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Homoatomic cages and clusters

Homoatomic Cages and Clusters of the Heavier Croup 15 Elements Neutral Species and Cations... [Pg.209]

All other homoatomic Pn cluster anions are cage molecules with localized two-center-two-electron bonds. The cyclic [PnJ anion has been characterized by NMR spectroscopy for Pn = P [210], and structures are known for Pn = P, As, Sb, Bi (Table 2). A planar [Ps] anion has only been detected in solution by P NMR spectroscopy [210]. Envelop-shaped five- and six-membered rings are found for [Pns] and [Pe]", whereas [Asg]" deviates only slightly from planarity and has a chair conformation. The aromaticity of the planar anions [P4] and [Pe]" is distinct from that of regular 671-aromatic hydrocarbons and has been described... [Pg.100]

See other pages where Homoatomic cages and clusters is mentioned: [Pg.209]    [Pg.209]    [Pg.45]    [Pg.92]    [Pg.74]    [Pg.28]    [Pg.91]    [Pg.91]    [Pg.93]    [Pg.94]    [Pg.95]    [Pg.106]    [Pg.435]   
See also in sourсe #XX -- [ Pg.209 ]



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