Z. Naturforsch. 2012,
67b, 631 – 642
doi:10.5560/ZNB.2012-0093
Derivatives of the Triaminoguanidinium Ion, 1. Synthesis, Crystal and Molecular Structures of 1,2,3-Tris(benzylamino)guanidinium Salts
Nicolas
Bucher1,
Jan
Szabo1,
Iris M.
Oppel2, and
Gerhard
Maas1
1 Institut für Organische Chemie I, Universität Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
2 Institut für Anorganische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany
Received April 13, 2012 / published online July 6, 2012
Dedicated to Professor Wolfgang Beck on the occasion of his 80th birthday
Triaminoguanidinium chloride was transformed into 1,2,3-tris(benzylamino)guanidinium chloride (3-Cl) in two steps. Anion exchange allowed the preparation of further salts 3-X. The crystal and molecular structures of 3-Cl, 3-I, 3-CF3COO and 3-CF3SO3 were determined. It was found that both the conformation of the cation and the nature of the anion determines the packing in the solid state. Interestingly, three different conformations of the cation were observed in the crystals.
Key words: Guanidinium Salts, Crystal Structure, Hydrogen Bonds