SEARCH Articles Figures Tables A Selection of Cyclic Hydrogen-Bonding Patterns Formed in Nucleoside and Nucleotide Crystal Structures Cyclic Peptides through Hydrogen Bonding Cyclic bonding Cyclic hydrogen Cyclic hydrogen-bonded dimers Cyclic hydrogen-bonded dimers density Cyclic hydrogen-bonded dimers function Cyclic hydrogenation Davydov coupling cyclic hydrogen-bonded dimers Hydrogen bonding cyclic amides Nanotubes from Hydrogen Bonded Cyclic Molecules Nanotubes from Hydrogen Bonded Cyclic Peptides Nanotubes from Hydrogen Bonded Cyclic Ureas