4-chloro-2,6-bis(hydroxymethyl)pyridinium chloride and 4-dimethylamino-2,6-bis(hydroxymethyl)pyridinium chloride hemihydrate

摘要

Two substituted pyridinium chloride salts, namely 4-chloro-2,6-bis(hydroxymethyl)pyridinium chloride (triclinic, P-1, a = 6.0651(8) angstrom, b = 8.4393(8) angstrom, c = 8.6554(9) angstrom, alpha = 78.845(1)degrees, beta = 83.156(1)degrees, gamma = 89.047(1)degrees; V = 431.55(8) angstrom(3); Z = 2) and 4-dimethylamino-2,6-bis(hydroxymethyl)pyridinium chloride hemihydrate (orthorhombic, Aba2, a = 17.2179(14) angstrom, b = 17.6332(15) angstrom, c = 7.2068(6) angstrom; V = 2188.0(3) angstrom(3); Z = 4), have been structurally characterized. Hydrogen bonding and van der Waals contacts are evident in both structures. Furthermore, the 4-dimethylamino derivative features a trigonal planar dimethylamino group with some pi interaction between the nitrogen atom and the pyridine ring.