99超碰中文字幕在线观看-天天干天天日天天舔婷婷-我看操逼的好看的女人的-日本一二三四五区日韩精品

 文獻(xiàn)名： Synthesis of EuS and EuSe particles via thermal decomposition of dithio- and diselenophosphinate europium complexes

 

作者：    M. E. Burin authorA. P. PushkarevG. K. FukinR. V. RumyantsevA. N. KonevM. N. Bochkarev 

Institute of Metal Organic ChemistryRussian Academy of SciencesNizhny NovgorodRussia

 

摘要：New two- and trivalent europium complexes with dithio- and diselenodiphenylphosphinate ligands (S2PPh 2 - and Se2PPh 2 - ) have been synthesized as precursors for nanoparticles. Two-valent europium compounds have been characterized via X-ray diffraction. Their photoluminescence properties have been studied as well. EuS colloidal nanoparticles have been obtained via the thermolysis of Eu(S2PPh2) n (n = 2, 3) in a hexadecylamine medium at 310°C. The average size of objects is found to be 40–70 nm. As is established, the valent state of a lanthanide in the complex exerts no influence on the size of the forming nanoparticles or on the luminescence spectrum of colloidal solutions.