Helically chiral Pd() complexes containing intramolecular Pd Pd metallophilicity as circularly polarized molecular phosphors

Carbon-centred chirality of the pincer-type cyclometalated ligands is transferred to the helical chirality of dinuclear and tetranuclear Pd( ii ) arylacetylide complexes, and hence phosphorescence with quantum yields up to 50% and dissymmetry factors in the 10 −3 scale from the metal-metal-to-ligand...

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Bibliographic Details
Published inChemical communications (Cambridge, England) Vol. 57; no. 13; pp. 1627 - 163
Main Authors Lin, Jinqiang, Xie, Mo, Zhang, Xiaobao, Gao, Qin, Chang, Xiaoyong, Zou, Chao, Lu, Wei
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 17.02.2021
Subjects
Charge transfer
Chirality
Circular polarization
Crystallography
Ligands
Palladium
Phosphorescence
Phosphors
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Summary:Carbon-centred chirality of the pincer-type cyclometalated ligands is transferred to the helical chirality of dinuclear and tetranuclear Pd( ii ) arylacetylide complexes, and hence phosphorescence with quantum yields up to 50% and dissymmetry factors in the 10 −3 scale from the metal-metal-to-ligand charge-transfer excited states has been recorded in diluted solutions. Pallas's shining helixes: single-helical and double-helical oligonuclear pincer-type palladium( ii ) arylacetylide complexes exhibit circularly polarized phosphorescence with MMLCT parentages in fluid solutions.
Bibliography:For ESI and crystallographic data in CIF or other electronic format see DOI
Electronic supplementary information (ESI) available: Experiment details, additional spectra and tables. CCDC
and
2050044
2050043
10.1039/d0cc08188d
ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc08188d