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高压诱致的反式联苯乙烯酮结构相变与化学反应
  • ISSN号：1000-5773
  • 期刊名称：《高压物理学报》
  • 时间：0
  • 分类：O521.21[理学—高压高温物理;理学—物理]
  • 作者机构：[1]中国科技大学物理系合肥微尺度物质科学国家实验室
  • 相关基金：国家自然科学基金(10874160);; 教育部博士点基金
作者： 唐旭东[1], 张增明[1], 赵智[1], 王中平[1], 丁泽军[1]
关键词： 反式联苯乙烯酮, 高压, 拉曼, 能量色散X射线衍射, 相变, trans, trans-dibenzylideneacetone, high pressure, Raman spectra, EDXRD, phase transition
中文摘要：

利用金刚石对顶砧(DAC)高压装置在室温下对反式联苯乙烯酮(Trans,Trans-Dibenzylideneacetone)分子晶体进行了高压拉曼谱、荧光光谱和能量色散X射线衍射(EDXRD)研究。结果表明,在压力为1.0～1.3 GPa时,反式联苯乙烯酮发生了晶体—晶体的结构相变,同时开始伴随有压力诱导的化学反应,反应完成的压力为6.5 GPa。高压X射线研究表明,这次相变有新的共价键产生,可能的化学变化过程是,C C双键打开再与相邻的分子结合生成新的共价键。在压力大约为11 GPa时,反式联苯乙烯酮分子晶体再次发生了晶体的结构相变。新产生的物质在卸压后依然保持稳定。

英文摘要：

By using a diamond anvil cell the trans,trans-Dibenzylideneacetone molecular crystal was studied with high pressure Raman,fluorescence spectroscopy and EDXRD at room temperature.A crystalline to crystalline phase transition is found at 1.0~1.3 GPa;meanwhile,a pressure induced chemical reaction is observed and the reaction is completed around 6.5 GPa.The EDXRD spectra show that a new covalent bond produces in this chemcial reaction process.The possible chemical reaction paths are suggested as the openning of...

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期刊信息
  • 《高压物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:四川省科学技术协会
  • 主办单位:中国物理学会 高压物理专业委员会 四川省物理学会
  • 主编：邹广田
  • 地址：四川省绵阳市919信箱110分箱
  • 邮编：621999
  • 邮箱：gaoya@caep.cn
  • 电话：0816-2490042
  • 国际标准刊号：ISSN：1000-5773
  • 国内统一刊号：ISSN：51-1147/O4
  • 邮发代号:62-132
  • 获奖情况:
  • 中国物理类核心期刊,EI、CI收录期刊,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:3617