摘要
为准确确定2,6-二氨基-3,5-二硝基吡嗪-1-氧化物(LLM-105)的红外吸收峰的归属,用变温红外光谱法研究了升温条件下LLM-105的红外吸收峰的变化过程。确定了不同温度下各红外吸收峰的峰位。结果表明:随温度升高,LLM-105的分子间氢键强度减弱。参与氢键形成的—NH2和—NO2的红外吸收峰偏移至少4cm-1。与氢键形成无关的吡嗪环和C—N的红外吸收峰偏移1cm-1左右。
To accurately determine the assignments of IR absorption peaks for 2,6-diamino-3,5-dinitropyrazine-1-oxide （LLM-105）, the process of change in IR absorption peaks of LLM-105 under the heating conditions was investigated by temperature-dependent FT-IR spectroscopy. The positions of various IR absorption peaks at different temperatures were determined. Results show that with increasing the temperature, the strength of intermolecular hydrogen bond for LLM-105 is significantly weakened. IR absorption peak positions of amino group （—NH2） and nitro group （—NO2） participated in forming hydrogen bonds shift at least 4 cm-1. The pyrazine ring and C—N bond do not participate in the formation of hydrogen bonds, their peak positions shift about 1 cm-1.
出处
《含能材料》
EI
CAS
CSCD
北大核心
2015年第5期507-510,共4页
Chinese Journal of Energetic Materials
基金
国家自然科学基金(11372290)
化材所青年人才培养基金(QNRC201205)
作者简介
李静猷（1989-），男，硕士研究生，主要从事含能材料晶体研究研究。e-mail：lijingyou1989@163．com
通信联系人：孙杰（1972-），男，研究员，主要从事炸药改性与性能研究。e-rnail：zhuoshisun@163．com
