کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1517447 | 1511587 | 2010 | 5 صفحه PDF | دانلود رایگان |
Nitroguanidine derivatives have increasingly gained attention because of their high insecticidal activities and wide spectrum. In this paper, nitroguanidine derivative 1,5-dimethyl-2-nitroimino-1, 3, 5-triazinane was synthesized, and its crystal structure was determined by X-ray technique. The thermal behaviors of 1, 5-dimethyl-2-nitroimino-1, 3, 5-triazinane in a nitrogen atmosphere were also studied under non-isothermal conditions by thermogravimetry (TG) and differential scanning calorimetry (DSC) techniques. The TG and DSC studies showed that the sample started to melt at 408.1 K with high melting enthalpy of 121.3 J/g and was stable up to at least 423.2 K, which indicated that the sample could be effectively utilized for various devices below 423.2 K. The melting entropy of 1,5-dimethyl-2-nitroimino-1, 3, 5-triazinane calculated from melting point and melting enthalpy using Eq. (1) was 51.476 J mol−1 K−1. In addition, the nucleation parameters of 1,5-dimethyl-2-nitroimino-1, 3, 5-triazinane in ethanol, such as the radius of critical nucleus and the Gibbs free energy barrier, had also been investigated based on classical nucleation theory.
Journal: Journal of Physics and Chemistry of Solids - Volume 71, Issue 3, March 2010, Pages 170–174