Page 122 - 《精细化工》2023年第6期
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第 40 卷第 6 期                             精   细   化   工                                  Vol.40, No.6
             20 23 年 6 月                             FINE CHEMICALS                                 June  2023


              功能材料
                               红光区双效发光材料 BODIPY 的


                                            制备及其光谱性质



                                         1
                            1
                   粟   鹏 ,袁晓慧 ,晏佳莹                   1,2* ,郑开波       1,2* ,王   龙    1,2 ,张诺诺      1,2,3*
                 (1.  三峡大学  材料与化工学院  湖北省无机非金属晶态与能源转换材料重点实验室,湖北  宜昌  443002;
                 2.  湖北三峡实验室,湖北  宜昌  443007;3.  湖北宜美特全息科技有限公司,湖北  宜昌  443100)

                 摘要:通过吲哚衍生物与 1,8-萘内酰亚胺缩合及氟硼化反应,得到 meso 位无取代和甲基取代的两种配体(Ⅰ、
                 Ⅲ)及两种氟硼二吡咯(BODIPY)染料(Ⅱ、Ⅳ)。其结构和光学性能经 NMR、HRMS、单晶、UV-Vis 吸收
                 光谱、荧光发射光谱和固体荧光光谱进行了表征。结果表明,meso 位引入甲基后配体Ⅲ较配体Ⅰ的固体荧光发
                 射峰红移了 34 nm。BODIPY 染料具有较强的双效荧光(溶液和固体荧光),其中 BODIPY 染料  Ⅳ的溶液和固
                 体荧光量子产率分别高达 65.8%和 76.3%,其固体荧光量子产率较 meso 位无取代 BODIPY 染料Ⅱ(14.6%)提
                 高了 4.2 倍。BODIPY 染料Ⅳ较强的双效发光可归因于其固体堆积方式中无 C—H…π 作用以及层与层之间存在
                 的“头-尾”π-π 堆积。不同于其他提高固态荧光的策略,在母体 meso 位引入小位阻甲基的策略使 BODIPY 具
                 有双效红光发射性能,也丰富了双效有机发光材料的种类。
                 关键词:红光发光;双效荧光;氟硼配合物;高效固态荧光;有机发光材料;功能材料
                 中图分类号:O641.4;TB34      文献标识码:A      文章编号:1003-5214 (2023) 06-1272-08



                         Preparation and spectral properties of red region dual-state
                                            emission materials BODIPY


                                                        1
                                        1
                                SU Peng , YUAN Xiaohui , YAN Jiaying 1,2* , ZHENG Kaibo 1,2* ,
                                                        1,2
                                            WANG Long , ZHANG Nuonuo      1,2,3*
                 (1. Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, College of Materials and
                 Chemical Engineering, China Three Gorges  University, Yichang  443002,  Hubei, China; 2.  Hubei Three  Gorges
                 Laboratory, Yichang 443007, Hubei, China; 3. Hubei Yimeite Holographic Technology Co., Ltd., Yichang 443100, Hubei,
                 China)

                 Abstract: Two  meso-unsubstituted ligands (Ⅰ,  Ⅲ) and two methyl group substituted N,N-fluoroborate
                 complex (BODIPY) dyes (Ⅱ,  Ⅳ) were synthesized from condensation and coordination reactions of indole
                 derivatives and 1,  8-naphthalenimide. The structures and  spectral properties of  products  obtained were
                 characterized  by NMR, HRMS, single  crystal, UV-Vis absorption  spectrum, fluorescence  emission
                 spectrum and solid fluorescence spectrum. The results indicated that the introduction of methyl group at
                 meso-position made the solid emission spectra of ligand  Ⅲ  red-shift 34 nm compared with that of ligand
                 Ⅰ. BODIPY  dyes  displayed  high intensity fluorescence in  dual state (solution state and solid state),
                 especially, the corresponding fluorescence quantum yields of  Ⅳ  were as high as 65.8% and 76.3%, with
                 solid fluorescence quantum yield 4.2 times higher than that of  Ⅱ  (14.6%). The excellent optical properties
                 of  Ⅳ  could be attributed to the absence of C—H…π interaction and different "head to tail" π-π stacking
                 between layers.  Different from other strategies in solid-state fluorescence improvement, the strategy of


                 收稿日期:2022-09-28;  定用日期:2022-12-06; DOI: 10.13550/j.jxhg.20220885
                 基金项目:国家自然科学基金(22108157);国家级 111 引智基地(D20015)
                 作者简介:粟   鹏(1996—),男,硕士生。联系人:晏佳莹(1986—),女,副教授,硕士生导师,E-mail:623819379@qq.com;
                 郑开波(1980—),男,副教授,硕士生导师,E-mail:786782425@qq.com;张诺诺(1986—),男,副教授,硕士生导师,E-mail:
                 nnzhang2015@ctgu.edu.cn。
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