Boron‐Cluster Embedded Necklace‐Shaped Nanohoops

Abstract 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.