Nanohybrid for Emission Constructed with Nanozone and Molecules

由纳米区和分子构建的用于发射的纳米混合体

• 批准号: 12450345
• 负责人: WADA Yuji
• 金额: $ 9.66万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12450345/
• 关键词: Nanozeolite; Photosensitization; Nanohybrid; 希土類; ネオジム; 近赤外発光; ナノ結晶; フォトルミネッセンス; 表面修飾; ナノ複合体; 発光体; 酸化チタン; 光触媒; ナノ材料; ゼオライト; 発光; 近赤外; シップインボトル合成; 無機ホスト

Absorption of Nd(III) is weak due to forbidden f-f transition. We have employed 8-quinolinol with strong absorption as a photosensitizer and succeeded in photoluminescence in near-infrared region through energy transfer from the excited state to Nd(III) encapsulated in a zeolite cavity. Nd(III) was ligated by bis-perfluoromethylsulfoarride for providing a low-vibration condition. 8-Quinolinol was introduced into the zeolite cavity, resulting in photosensitized emission of Nd(III).Ruthenium tris-bipyridyl complex formed in the zeolite cavity was successfully employed as a photosensitizer for near infared emission of Nd(III) in the Zeolite cavity. This complex shows high efficiency in intersystem crossing, giving excited triplet state. The emission from MLCT triplet state of the complex was effectively quenched when Nd(III) was introduced into the zeolite cavity together, indicating that the efficient energy transfer occurs.

Nd（III）的吸收由于禁戒的f-f跃迁而较弱。我们采用8-羟基喹啉作为光敏剂，具有很强的吸收，并成功地在近红外区的光致发光，通过能量转移从激发态到Nd（III）封装在沸石腔。Nd（III）被双-全氟甲基磺酰亚胺连接以提供低振动条件。8-将喹啉醇引入到分子筛腔中，使Nd（III）产生光敏发射，在分子筛腔中形成的钌三联吡啶配合物被成功地用作光敏剂，使Nd（III）在分子筛腔中产生近红外发射。该配合物具有高的系间跃迁效率，能产生激发三重态。当Nd（III）同时被引入到分子筛腔中时，配合物的MLCT三重态发射被有效地猝灭，表明发生了有效的能量传递。

项目成果

K.Sogabe, et al: "A New one-pot Synthesis of Bisperfluoroalkanesulfonylamides and Bispentafluorobenzesulfonylamide as Potassium Salts"Chem.Lett.. 944-945 (2000)

K.Sogabe 等人：“双全氟烷磺酰酰胺和双五氟苯磺酰酰胺作为钾盐的新一锅法合成”Chem.Lett.. 944-945 (2000)