Intercalation of primary diamines and amino acid in the layer structure oxide HTiNbO5

摘要: Abstract The intercalation of primary diamines in the layer structure HTiNbO 5 has been studied. This is quantitative and reversible: ten compounds have synthesized corresponding to general formula NH 3 (CH 2 ) n NH( (TiNbO with = 2–10 12. For each composition, two forms observed according temperature synthesis, called low (l.t.) high (h.t.), respectively. X-ray diffraction study these shows that they are orthorhombic, a b parameters close those . l.t. h.t. differ one from another by value c parameter which characterizes spacing between layers. values interpreted terms transversal orientation diamine chains respect transition ah explained conformational change involving formation either gauche bonds or kinks. an amino acid, lysine, also characterized mole per proton leading formulation greater for this compound results hydrogen lysine molecules, ensure cohesion structure.