2-Cyano-N-(2,6-dimethoxy-pyrimidin-4-yl)-3-[4-(dimethyl-amino)-phenyl] -acrylamide and dimethyl-ammonium 6-cyano-1,3-dimethyl-2,4,5-trioxo-1,2,3,4,5,8- hexa-hydro-pyrido[2,3-d]pyrimidin-8-ide: A π-stacked dimer and a hydrogen-bonded ribbon containing three types of ring

1. Quiroga, J.
2. Gálvez, J.
3. Hursthouse, M.B.
4. Cobo, J.
5. Glidewell, C.