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[5]Cycloparaphenylene is the world's smallest carbon nanoring.
Structural Features
- CPP having the smallest ring size among synthesized other examples
- Cyclic unit structure of fullerene (C60) and [5,5] carbon nanotube
- The same diameter as C60 (0.7 nm)
Properties
- Soluble in organic solvents
- Narrow HOMO-LUMO gap comparable with that of C60
Possible Application
- Organic electronics materials
- Raw material for carbon nanoring derivatives, and bottom up synthesis of CNT
- Molecular host materials
References
- Synthesis and Characterization of [5]Cycloparaphenylene
- Practical Synthesis of [n]Cycloparaphenylenes (n=5, 7–12) by H2SnCl4‐Mediated Aromatization of 1,4‐Dihydroxycyclo‐2,5‐diene Precursors
- S. Yamago, E. Kayahara, Patent Pending, Appl. No. JP2014-009789.