Boron-Cluster Embedded Necklace-Shaped Nanohoops

The combination of carbon-based nanohoops with other functional organic molecular structures should lead to the design of new molecular configurations with interesting properties. Here, necklace-like nanohoops embedded with carborane were synthesized for the first time. The unique deboronization of o-carborane has led to the facile preparation of ionic nanohoop compounds. Nanohoops functionalized by nido-o-carborane show excellent fluorescence emission, with a solution quantum yield of up to 90.0 % in THF and a solid-state quantum efficiency of 87.3 %, which opens an avenue for the applications of the nanohoops in OLEDs and bioimaging.

Automated summary

The combination of carbon-based nanohoops with other functional organic molecular structures can lead to the design of new molecular configurations with interesting properties. In this study, necklace-like nanohoops embedded with carborane were synthesized for the first time, and the unique deboronization reaction of o-carborane allowed the facile preparation of ionic nanohoop compounds. Functionalized nanohoops with nido-o-carborane exhibited excellent fluorescence emission, making them suitable for OLEDs and bioimaging applications.