一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> Inorganic Chemistry >>article
Inorganic Chemistry

Inorganic Chemistry

IF: 4.3
Download PDF

Highly Luminescent Poly(Methyl Methacrylate)-Incorporated Europium Complex Supported by a Carbazole-Based Fluorinated β-Diketonate Ligand and a 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene Oxide Co-Ligand

Published:10 September 2010 DOI: 10.1021/ic1015324 PMID: 20831258
D. B. Ambili Raj, Biju Francis, M. L. P. Reddy*, Rachel R. Butorac, Vincent M. Lynch, Alan H. Cowley

Abstract

A novel efficient antenna complex of Eu3+ [Eu(CPFHP)3(DDXPO)] supported by a highly fluorinated carbazole-substituted β-diketonate ligand, namely, 1-(9H-carbazol-2-yl)-4,4,5,5,5-pentafluoro-3-hydroxypent-2-en-1-one (CPFHP) and the 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene oxide (DDXPO) ancillary ligand, has been synthesized, structurally characterized, and its photoluminescent behavior examined. The single-crystal X-ray diffraction analysis of Eu(CPFHP)3(DDXPO) revealed that this complex is mononuclear, and that the central Eu3+ ion is surrounded by eight oxygen atoms, six of which are provided by the three bidentate β-diketonate ligands. The remaining two oxygen atoms are furnished by the chelating phosphine oxide ligand. The coordination polyhedron is best described as that of a distorted square antiprism. The photophysical properties of Eu(CPFHP)3(DDXPO) benefit from adequate protection of the metal by the ligands with respect to non-radiative deactivation as well as an efficient ligand-to-metal energy transfer process which exceeds 66% in chloroform solution with a quantum yield of 47%. As an integral part of this work, the synthesis, characterization, and luminescent properties of poly(methyl methacrylate) (PMMA) polymer films doped with Eu(CPFHP)3(DDXPO) are also reported. The luminescent efficiencies of the doped films (photoluminescence quantum yields 79?84%) are dramatically enhanced in comparison with that of the precursor complex. The new luminescent PMMA-doped Eu(CPFHP)3(DDXPO) complex therefore shows considerable promise for polymer light-emitting diode and active polymer optical fiber applications.

Substances (6)

Related products
Procduct Name CAS Molecular Formula Supplier Price
4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene 161265-03-8 C39H32OP2 581 suppliers $6.00-$9260.00
Poly(methyl methacrylate) 9011-14-7 (C5H8O2)x 312 suppliers $14.00-$4280.00
POLY(METHYL METHACRYLATE) ISOTACTIC 25188-98-1 C12H18N3O8PS 35 suppliers $21.00-$502.27
EU-STREPTAVIDIN 10 suppliers Inquiry
(R)-(2'-(diphenylphosphino)-[1,1'-binaphthalen]-2-yl)diphenylphosphine oxide 152646-80-5 C44H32OP2 5 suppliers Inquiry
9H-Carbazol-2-yl trifluoromethanesulfonate, 1 g - Inquiry

Similar articles

天门市| 云安县| 太白县| 突泉县| 玉门市| 赤壁市| 西畴县| 灯塔市| 米脂县| 延庆县| 海宁市| 上饶市| 巴彦淖尔市| 孟村| 乌鲁木齐县| 大丰市| 东山县| 驻马店市| 华安县| 博客| SHOW| 嵩明县| 于都县| 台中市| 吉林省| 吴旗县| 九龙县| 孝义市| 剑川县| 安达市| 龙里县| 晋城| 江永县| 玉龙| 繁昌县| 洪湖市| 蒙自县| 藁城市| 宝坻区| 吉林省| 绥芬河市|