Polymeric Carbon Dioxide
Polymeric Carbon Dioxide
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聚合二氧化碳
DOI：
10.1557/proc-579-239
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
C. Yoo
中科院分区：
文献类型：
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作者：
C. Yoo
聚合二氧化碳的合成一直是许多化学家和材料科学家的兴趣。最近，我们发现了二氧化碳（称为CO{sub 2}-V）在高压和高温下的聚合相。我们的光学和X射线结果表明，CO{sub 2}-V是光学非线性的，在527 nm处产生Nd：YLF激光的二次谐波，并且也可能是类似于氮化硼或金刚石的超硬物。CO{sub 2}-V由CO{sub 4}四面体组成，类似于SiO{sub 2}多晶型物，并且在环境温度下在高于1 GPa的压力下可淬灭。在本文中，我们描述了压力诱导的二氧化碳聚合与聚合CO{sub 2}-V的稳定性，结构，机械和光学性能。我们还提出了一些聚合CO{sub 2}的高压化学和新材料合成的影响。
Synthesis of polymeric carbon dioxide has long been of interest to many chemists and materials scientists. Very recently we discovered the polymeric phase of carbon dioxide (called CO{sub 2}-V) at high pressures and temperatures. Our optical and x-ray results indicate that CO{sub 2}-V is optically non-linear, generating the second harmonic of Nd: YLF laser at 527 nm and is also likely superhard similar to cubic-boron nitride or diamond. CO{sub 2}-V is made of CO{sub 4} tetrahedra, analogous to SiO{sub 2} polymorphs, and is quenchable at ambient temperature at pressures above 1 GPa. In this paper, we describe the pressure-induced polymerization of carbon dioxide together with the stability, structure, and mechanical and optical properties of polymeric CO{sub 2}-V. We also present some implications of polymeric CO{sub 2} for high-pressure chemistry and new materials synthesis.