Synthesis and Reactivity of Phosphorus-containing Germylenes

磷元素位于元素周期表的第三周期，第15族，其特殊的电子结构（1s22s22p63s23p3）使其拥有多变的价态以及复杂的结构。目前国际上对磷化学的研究，主要集中于三价三配位（λ3σ3)以及五价四配位（λ5σ4）的磷化合物上，而对低配位的磷化合物研究较少。1961年，Gier首次报道了以磷化氢为原料制备磷代乙炔的反应。紧接着，许多种磷炔、磷烯和磷烯酮的衍生物相继被合成出来。这些低配位的含磷化合物具有很高的反应活性，可以跟许多小分子底物直接发生反应，构建各种含磷杂环化合物。 卡宾（Carbene）具有双重的Lewis酸性和Lewis碱性，且具有很高的反应活性，作为过渡金属催化反应中的配体，在实验...Phosphorus locates in Group 15 and third period of the periodic table of elements. The special electronic structure of phosphorus (1s2 2s2 2p6 3s2 3p3) endows it with multifarious valences and complicated chemical structures. Generally, the research of phosphorus chemistry mainly focuses on trivalent tricoordinated (λ3σ3) and pentavalent tetracoordinated (λ5σ4) phosphorus compounds. In 1961, Gier ...学位：理学博士院系专业：化学化工学院_物理化学学号：2052011015372

五配位氧磷烷分子间配体交换反应-RNA水解和融合过程的化学模型（英文）

具有五元环和三配体结构的五配位氧磷烷(ab2)在碱催化条件下自发进行分子间的配体交换反应,产生不同配体组合的全部三种五配位氧磷烷(a3,b3和a2b)。如果把其中a3与b3作为父代分子,其配体交换产生的五配位氧磷烷a2b和ab2可以视作子代分子,从而自发实现了分子结构的多样化。因此,五配位氧磷烷分子间配体交换反应可以作为研究生命过程中具有五配位磷中间体结构化学性质的模型,对理解基因转录和生命信息储存等过程中涉及的RNA分子剪接、水解和融合等重要生命过程的分子机制提供了重要依据

五配位氧磷烷分子间配体交换反应-RNA水解和融合过程的化学模型（英文）

具有五元环和三配体结构的五配位氧磷烷（ab2）在碱催化条件下自发进行分子间的配体交换反应,产生不同配体组合的全部三种五配位氧磷烷（a3,b3和a2b）.如果把其中a3与b3作为父代分子,其配体交换产生的五配位氧磷烷a2b和ab2可以视作子代分子,从而自发实现了分子结构的多样化.因此,五配位氧磷烷分子间配体交换反应可以作为研究生命过程中具有五配位磷中间体结构化学性质的模型,对理解基因转录和生命信息储存等过程中涉及的RNA分子剪接、水解和融合等重要生命过程的分子机制提供了重要依据.Project supported by the National Natural Science Foundation of China(Nos.21778042,41876072,21772163,41576081)the Xiamen Southern Oceanographic Center(No.17GYY002NF02)the Fundamental Research Funds for the Central Universities(No.20720170069)~

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies