Since then such bonds have also been detected in hydrogen and other elements, but no scientists ever came across a single ...

A DEPENDENCE of bond distances on environment was first noticed when the carbon–carbon single-bond distance in methyl acetylene was compared with that in ethane 1. In recent years, a wealth of ...

Two high-quality single-crystal sp²c-COFs have been developed, demonstrating the generality of this approach. This work addresses the bottleneck in synthesizing single-crystal COFs and provides ...

Chinese scientists proposed a novel imine-to-olefin transformation strategy to synthesize single-crystal sp² carbon-linked covalent ... through strong covalent bonds. COFs have numerous ...