Lyotropic Chromonic Mesophases of Chiral Organopalladium(II) Complexes for Amplified Circularly Polarized Phosphorescence

Zhou, Ning1; Xie, Mo2; Zheng, Ceyuan1; An, Jiabo1,3; Zou, Chao1,3; Lu, Wei1

2024-07-01

10.1002/adom.202400295

ADVANCED OPTICAL MATERIALS   影响因子和分区

2195-1071

["Herein, it is reported that lyotropic liquid crystals that transfer carbon-centered chirality to helical chirality and subsequently to macroscopic chirality in the mesophases. This process is accompanied by remarkable amplification of both emission quantum yield and dissymmetry factor of the circularly polarized luminescence (CPL). Cationic tridentate cyclometalated Pd(II) complexes, once functionalized with chiral hydrogen-bonding motifs of amide, aggregated into head-to-tail dimers at low concentrations in acetonitrile and further self-organized into chiral lyotropic chromonic mesophases upon concentrated to 50 wt.%. At 25 degrees C, the chiral chromonics display metal-metal-to-ligand charge-transfer (MMLCT) phosphorescence at an emission maximum of 677 nm with quantum yields up to 38% and lifetimes up to 0.50 mu s. Notably, the dissymmetry factors ranged from 0.10 to 0.76, varying with the sample thickness in the range of 200-15 mu m. Comparison studies and theoretical calculations reveal that the hydrogen-bonding amide group is pivotal for the formation of the staggered configuration in the helical superstructures. Additionally, the carbon-centered chirality of the amide dictate the handedness of the helices and consequently influenced the properties of CPL.","Two birds with one stone: Organopalladium(II) complexes with a chiral H-bonding motif form lyotropic chiral chromonic mesophases in acetonitrile with remarkable amplifications on both emission quantum yield and dissymmetry factor of the circularly polarized MMLCT phosphorescence. image"]

chromonics circularly polarized luminescence H-bonding palladium self-assembly

SCI ; EI

英语

第一 ; 通讯

Major Program of Guangdong Basic and Applied Research[2019B030302009] ; null[21873044]

Materials Science ; Optics

Materials Science, Multidisciplinary ; Optics

WOS:001205290000001

WILEY-V C H VERLAG GMBH

20241715956992

Amides ; Charge transfer ; Chirality ; Hydrogen bonds ; Liquid crystals ; Palladium compounds ; Phosphorescence ; Quantum yield ; Stereochemistry

Light/Optics:741.1 ; Chemistry:801 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Organic Compounds:804.1 ; Atomic and Molecular Physics:931.3 ; Materials Science:951

Web of Science

1.Southern Univ Sci & Technol SUSTech, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China
2.Jinan Univ, Coll Chem & Mat Sci, Guangzhou 510632, Guangdong, Peoples R China
3.Songshan Lake Mat Lab, Frontier Res Ctr, Funct Coordinat Mat Grp, Dongguan 523808, Guangdong, Peoples R China

Zhou, Ning,Xie, Mo,Zheng, Ceyuan,et al. Lyotropic Chromonic Mesophases of Chiral Organopalladium(II) Complexes for Amplified Circularly Polarized Phosphorescence[J]. ADVANCED OPTICAL MATERIALS,2024,12(19).

Zhou, Ning,Xie, Mo,Zheng, Ceyuan,An, Jiabo,Zou, Chao,&Lu, Wei.(2024).Lyotropic Chromonic Mesophases of Chiral Organopalladium(II) Complexes for Amplified Circularly Polarized Phosphorescence.ADVANCED OPTICAL MATERIALS,12(19).

Zhou, Ning,et al."Lyotropic Chromonic Mesophases of Chiral Organopalladium(II) Complexes for Amplified Circularly Polarized Phosphorescence".ADVANCED OPTICAL MATERIALS 12.19(2024).