Odd–even effect in melting properties of 12 alkane-α, ω-diamides

E Badea, G Della Gatta, D D'Angelo, B Brunetti…

Index: Badea, Elena; Gatta, Giuseppe Della; D'Angelo, Domenico; Brunetti, Bruno; Reckova, Zuzana Journal of Chemical Thermodynamics, 2006 , vol. 38, # 12 p. 1546 - 1552

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Citation Number: 22

Abstract

Fusion and solid-to-solid transitions of a homologous series of 12 linear alkane-α, ω- diamides H2NCO–(CH2)(n− 2)–CONH2, where n=(2 to 12 and 14), were investigated by differential scanning calorimetry (dsc). The temperatures of fusion of even terms decreased from Tfus≈ 572K to about 460K, whereas those of odd terms remained substantially constant at about 450K. Solid-to-solid transitions were also detected for oxamide, ...