Abstract
The pentagons are charming architectures found abundantly in organisms (such as starfish). The inside cover picture shows the first pentagonal‐prismatic organometallic cylinder obtained from the pentaphenylpyrrole‐bridged pentaimidazolium salt and AgI ions. Photophysical studies showed that the organometallic cylinder not only exhibited enhanced fluorescence emission in dilute solution at room temperature but also showed an improved phosphorescence ratio and maintained a long lifetime (1.39 s) in the solid state at 77 K. The current study is believed to provide important insights into the future design of novel phosphorescent organometallic materials with high efficiency and ultralong lifetime. More details are given in the article by Han et al. on page 1431–1436.image
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