Triplet-triplet annihilation up-conversion of cationic iridium(III) complex solubilized by organically-modified hectorite in a green solvent

IF 5.3 2区地球科学 Q2 CHEMISTRY, PHYSICAL

Applied Clay Science Pub Date : 2025-04-22 DOI:10.1016/j.clay.2025.107828

Akihiko Yamagishi , Kazuyoshi Takimoto , Risa Ito , Jun Yoshida , Hisako Sato

引用次数: 0

Abstract

A cationic Ir (III) complex, [Ir(bzq)₂(phen)]⁺ (bzqH = benzo[h]quinoline; phen = 1,10-phenanthroline), was bound to colloidal particles of synthetic saponite (SAP) in 2:2:0.05 (v/v) methanol/dichloromethane/water. Upon the addition of 9,10-diphenylanthracne (DPA), the initial emission peak around 580 nm decreased with the simultaneous appearance of an emission peak at approximately 430 nm. These results implied that the Ir(III) complex as a donor achieved triplet-triplet annihilation up-conversion (TTA-UC) of the photon energy in DPA under air. The quantum yield was enhanced by hybridization with SAP. TTA-UC was also realized in an aprotic solvent mixture of 1:1 (v/v) toluene/R-limonene when the Ir (III) complex was solubilized using organically-modified hectorite. The utility of clay minerals for efficient energy up-conversion in a green solvent was demonstrated.

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在绿色溶剂中有机修饰的锂钛石溶解阳离子铱（III）配合物的三重-三重湮没上转化

阳离子Ir（III）配合物[Ir(bzq)2(phen)]+ (bzqH =苯并[h]喹啉；在2:2:0.05 （v/v）甲醇/二氯甲烷/水的溶液中，与合成皂土（SAP）的胶体颗粒结合。添加9,10-二苯基蒽醌（DPA）后，580 nm附近的初始发射峰降低，同时在430 nm附近出现一个发射峰。这些结果表明，Ir（III）配合物作为供体在空气作用下实现了光子能量的三重湮灭上转换（TTA-UC）。通过与SAP的杂化，提高了量子产率。用有机修饰的百托石溶解Ir （III）配合物，在1:1 （v/v）甲苯/ r -柠檬烯的非质子溶剂混合物中也实现了TTA-UC。证明了粘土矿物在绿色溶剂中高效能量上转化的效用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Clay Science 地学-矿物学

CiteScore

10.30

自引率

10.70%

发文量

289

审稿时长

39 days

期刊介绍： Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as: • Synthesis and purification • Structural, crystallographic and mineralogical properties of clays and clay minerals • Thermal properties of clays and clay minerals • Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties • Interaction with water, with polar and apolar molecules • Colloidal properties and rheology • Adsorption, Intercalation, Ionic exchange • Genesis and deposits of clay minerals • Geology and geochemistry of clays • Modification of clays and clay minerals properties by thermal and physical treatments • Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays) • Modification by biological microorganisms. etc...