A profusion of phospholes: Diacenaphtho[1,2‐b:1′,2′‐d]phospholes, a new class of arene‐fused phosphole π‐systems, were synthesized and their structural and electrochemical properties studied. The P‐sulfide derivative (see picture) has a highelectron‐transporting ability (μE=2.4×10−3 cm2 V−1 s−1) in a vacuum‐deposited film.
大量的磷脂:对苯二甲酰[1,2- b:1',2'- d ]磷脂是一类新型的芳烃融合的π系统,并对其结构和电化学性质进行了研究。所述P-硫化物衍生物(见图)具有高电子传输能力(μ Ë = 2.4×10 -3 厘米2 V -1 小号-1在一个真空沉积膜)。
Diacenaphtho[1,2-<i>b</i>;1′,2′-<i>d</i>]silole and -pyrrole
π-Extended silole and pyrrole analogs fused with two acenaphthylene units were synthesized from 2,2′-dibromo-1,1′-biacenaphthylene. The pyrrole was obtained as a stable compound, while the silole was thermally stable, but highly acid-sensitive purple crystals. The molecular structures reveal that both heteroles have a planar π-system and stack to form a head-to-tail dimer structure. Observed electronic and electrochemical properties obviously indicate low LUMO energy level of the silole and high HOMO level of the pyrrole as predicted by DFT calculations.