Heteroleptic [Bis(oxazoline)](dipyrrinato)zinc(II) Complexes: Bright and Circularly Polarized Luminescence from an Originally Achiral Dipyrrinato Ligand

Heteroleptic zinc(II) complexes synthesized using achiral dipyrrinato and chiral bis(oxazoline) ligands show bright fluorescence with quantum efficiencies of up to 0.70. The fluorescence originates from the 1π–π* photoexcited state localized exclusively on the dipyrrinato ligand. Furthermore, the lu...

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Published in:Angewandte Chemie 2016-01, Vol.128 (4), p.1399-1403
Main Authors: Kögel, Julius F., Kusaka, Shinpei, Sakamoto, Ryota, Iwashima, Toshiki, Tsuchiya, Mizuho, Toyoda, Ryojun, Matsuoka, Ryota, Tsukamoto, Takamasa, Yuasa, Junpei, Kitagawa, Yasutaka, Kawai, Tsuyoshi, Nishihara, Hiroshi
Format: Article
Language:English
Subjects:
Absorption
Brightening
Chemistry
Chirality
Chiralität
Circularity
Coordination compounds
Crystal structure
Fluorescence
Fluoreszenz
Ligands
Luminescence
N-Liganden
Single crystals
Stacking
Structural analysis
X-rays
Zinc
Zinc compounds
Zink
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cited_by cdi_FETCH-LOGICAL-c3271-b8dcb239ad35d8e602f6b7359dd73ba98aa5706b91d5e8158490382f049f35f23
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container_title Angewandte Chemie
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creator Kögel, Julius F.
Kusaka, Shinpei
Sakamoto, Ryota
Iwashima, Toshiki
Tsuchiya, Mizuho
Toyoda, Ryojun
Matsuoka, Ryota
Tsukamoto, Takamasa
Yuasa, Junpei
Kitagawa, Yasutaka
Kawai, Tsuyoshi
Nishihara, Hiroshi
description Heteroleptic zinc(II) complexes synthesized using achiral dipyrrinato and chiral bis(oxazoline) ligands show bright fluorescence with quantum efficiencies of up to 0.70. The fluorescence originates from the 1π–π* photoexcited state localized exclusively on the dipyrrinato ligand. Furthermore, the luminescence is circularly polarized despite the achirality of the dipyrrinato ligand. Single‐crystal X‐ray structure analysis discloses that the chiral bis(oxazoline) ligand undergoes intramolecular π–π stacking with the dipyrrinato ligand, inducing axial chirality in the dipyrrinato moiety. Indirekter Einfluss: Heteroleptische Zink(II)‐Komplexe mit achiralen Dipyrrinato‐ (magenta) und chiralen Bis(oxazolin)‐Liganden (türkis) zeigen eine starke Fluoreszenz der Dipyrrinato‐Einheit mit Quantenausbeuten bis zu 0.70. Der Bis(oxazolin)‐Ligand induziert axiale Chiralität am Dipyrrinato‐Liganden, sodass das emittierte Licht zirkulare Polarisation aufweist.
doi_str_mv 10.1002/ange.201509411
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Indirekter Einfluss: Heteroleptische Zink(II)‐Komplexe mit achiralen Dipyrrinato‐ (magenta) und chiralen Bis(oxazolin)‐Liganden (türkis) zeigen eine starke Fluoreszenz der Dipyrrinato‐Einheit mit Quantenausbeuten bis zu 0.70. Der Bis(oxazolin)‐Ligand induziert axiale Chiralität am Dipyrrinato‐Liganden, sodass das emittierte Licht zirkulare Polarisation aufweist.</abstract><cop>Weinheim</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/ange.201509411</doi><tpages>5</tpages></addata></record>
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source Wiley-Blackwell Read & Publish Collection
subjects Absorption
Brightening
Chemistry
Chirality
Chiralität
Circularity
Coordination compounds
Crystal structure
Fluorescence
Fluoreszenz
Ligands
Luminescence
N-Liganden
Single crystals
Stacking
Structural analysis
X-rays
Zinc
Zinc compounds
Zink
title Heteroleptic [Bis(oxazoline)](dipyrrinato)zinc(II) Complexes: Bright and Circularly Polarized Luminescence from an Originally Achiral Dipyrrinato Ligand
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