Supramolecular synthons mediated by weak hydrogen bonding: forming linear molecular arrays via C
C–H···N
C and C
C–H···O2N recognition
Abstract
In crystalline 4-cyano-4′-ethynylbiphenyl and 4-ethynyl-4′-nitrobiphenyl, molecules are connected with the hitherto unreported Câ–·C–H···Nâ–·C and Câ–·C–H···O2N supramolecular synthons to form linear arrays.