TITLE:
Crystal Structure and Physicochemical Properties of 2-Diisopropylammonium Ethylammonium Sulfate Dihydrate
AUTHORS:
Wafa Amamou, Taha Guerfel, Taher Mhiri
KEYWORDS:
Chemical Preparation; Crystal Structure; Thermal Behavior; Organic Sulfate; Infrared and Raman Spectroscopy; NMR Spectroscopy
JOURNAL NAME:
Crystal Structure Theory and Applications,
Vol.1 No.3,
December
25,
2012
ABSTRACT: A new organic sulfate (C8H22N2)SO42H2O denoted DPAES is obtained by interaction of H2SO4 with the organic molecule 2-[Diisopropylamino] ethylamine. We describe its crystallographic and structural features. DPAES is triclinic, Pī, with the lattice parameters a = 6.8841(2)?, b = 8.4966(2)?, c = 12.0804(3)?, = 81.824(1)o, = 88.007(1)o, = 78.649(1)o, V = 685.72(3)?3, and Z = 2. Its atomic arrangement is described as inorganic chains of SO42- units and water molecules, these chains are interconnected by organic groups so as to build layers parallel to the (001) planes. The IR data of DPAES are reported and discussed according to the theoretical group analysis and by comparison with IR results of similar compounds. The coupled TG-DTA thermal study shows the departure of two water molecule, con- firming the hydrated character of this compound.