摘要
利用x光电子能谱测试,发现金矿床石英中有负价氮的存在。这种氮的结合能为398eV士,该结合能氮的化合物有多种,氦均为负价态,其中有Si_3N_4Si的x光电子能谱有二个谱峰值:103.4eV和101.9eV,前者为siO_2的结合能,后者为Si_3N_4的结合能。N和Si的结合能均表明石英中有Si_3N_4为负三价态。石英中负价N可能为替代氧的类质同象成分。
With the aid of X-ray photoelectron spectrum,negative valenced nitrogenhas been discovered in quartz from a gold deposit.The binding energy of the nitrogen is398 ev±which corresponds to many nitrogen compounds with negative valencednitrogen,including Si_3N_4.Si has two X-ray photoelectron spectrum peaks:103.4 eV and101.9ev,corresponding to the binding energy of SiO_2and Si_3N_4 respectively.The bindingenergy of both N and Si suggests that Si_3N _4 exists in the quartz and the valence ofnitrogen is-3.Such negative valenced nitrogen may substitute oxygen via isomorphism。This discovery provides new data to crystal chemistry of quartz.
基金
北京中关村地区联合分析测试中心分析测试基金
关键词
石英
负价氮
金矿床
赋存状态
quartz,x-ray photnelectron spectrum,negative valenced nitrogenbinding energy,crystal chemistry