名称:
1-Methyl-2-((1E,3E)-4-phenylbuta-1,3-dienyl)pyridinium iodide: Synthesis, characterization, and X-ray analysis
摘要:
1-Methyl-2-((1E,3E)-4-phenylbuta-1,3-dienyl)pyridinium iodide (1) is synthesized and characterized by UV-Vis, FT-IR, H-1 and C-13 NMR, and single crystal X-ray diffraction. Compound 1 crystallizes in an orthorhombic Iba2 space group with the unit cell parameters a = 12.8236(11) , b = 20.1216(17) , c = 11.2071(10) , V = 2891.8(4) (3) and Z = 8. X-ray diffraction indicates that the molecule of 1 displays E,E configurations with respect to the two middle C=C double bonds. The molecular structure of 1 is twisted and the dihedral angle between the pyridinium and phenyl rings is 15.0(2)A degrees. In the crystal packing, cations form stacks in an anti-parallel V-shaped manner along the a axis through pi-pi interactions between pyridinium and phenyl rings.