Thiazole Boron Difluoride Dyes with Large Stokes Shift, Solid State Emission and Room-Temperature Phosphorescence.
Thiazole Boron Difluoride Dyes with Large Stokes Shift, Solid State Emission and Room-Temperature Phosphorescence.
复制标题
具有大斯托克斯位移、固态发射和室温磷光的噻唑二氟化硼染料
DOI:
10.1002/chem.202202507
复制
发表时间:
2022-11-21
影响因子:
4.3
通讯作者:
Zhu, Jieping
中科院分区:
文献类型:
--
作者:
Wang, Wei;Tong, Shuo;Wang, Qi-Qiang;Ao, Yu-Fei;Wang, De-Xian;Zhu, Jieping
The small Stokes shift and weak emission in the solid state are two main shortcomings associated with the boron‐dipyrromethene (BODIPY) family of dyes. This study presents the design, synthesis and luminescent properties of boron difluoro complexes of 2‐aryl‐5‐alkylamino‐4‐alkylaminocarbonylthiazoles. These dyes display Stokes shifts (Δλ, 77–101 nm) with quantum yields (ϕ FL) up to 64.9 and 34.7 % in toluene solution and in solid state, respectively. Some of these compounds exhibit dual fluorescence and room‐temperature phosphorescence (RTP) emission properties with modulable phosphorescence quantum yields (ϕ PL) and lifetime (τp up to 251 μs). The presence of intramolecular H‐bonds and negligible π‐π stacking revealed by X‐ray crystal structure might account for the observed large Stokes shift and significant solid‐state emission of these fluorophores, while the enhanced spin‐orbit coupling (SOC) of iodine and the self‐assembly driven by halogen bonding, π‐π and C−H…π interactions could be responsible for the observed RTP of iodine containing phosphors. Five‐membered boron difluoro complexes using a secondary amide as an anionic ligand display large Stokes shift and significant solid‐state emission. Dyes exhibiting room‐ temperature phosphorescence (RTP) emission in both amorphous and crystalline states are documented.
登录
查看更多内容
影响因子:
4.9
作者:
Liu, Hui;Lu, Hua;Shen, Zhen
通讯作者:
Shen, Zhen
影响因子:
4.3
作者:
Lee, Boran;Park, Byung Gyu;Lee, Dongwhan
通讯作者:
Lee, Dongwhan
影响因子:
2.3
作者:
Ren, Yi;Liu, Xiaoming;Mu, Ying
通讯作者:
Mu, Ying
影响因子:
15
作者:
Hapuarachchige, Sudath;Montano, Gilbert;Ramesh, Chinnasamy;Rodriguez, Delany;Henson, Lauren H.;Williams, Casey C.;Kadavakkollu, Samuel;Johnson, Dennis L.;Shuster, Charles B.;Arterburn, Jeffrey B.
通讯作者:
Arterburn, Jeffrey B.
影响因子:
4
作者:
Chang, M. -C.;Chantzis, A.;Otten, E.
通讯作者:
Otten, E.