Cover Feature: Phosphorescence at Low Temperature by External Heavy‐Atom Effect in Zinc(II) Clusters (Chem. Eur. J. 23/2019)

Zinc(II) complexes have a significant hurdle to overcome to exhibit phosphorescence because of the absence of spin‐orbital coupling (SOC) in the ZnII ion. The present manuscript reports the phosphorescent behaviour of a ZnII cluster [Zn7L6(μ3‐OMe)2(μ3‐OH)4]I2 (HL=methyl‐3‐methoxysalicylate) promoted...

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Bibliographic Details
Published in:Chemistry : a European journal 2019-04, Vol.25 (23), p.5812-5812
Main Authors: Kobayashi, Fumiya, Ohtani, Ryo, Teraoka, Saki, Yoshida, Masaki, Kato, Masako, Zhang, Yingjie, Lindoy, Leonard F., Hayami, Shinya, Nakamura, Masaaki
Format: Article
Language:English
Subjects:
external heavy-atom effect
long emission lifetime
luminescence
phosphorescence
zinc
Online Access:Get full text
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Summary:Zinc(II) complexes have a significant hurdle to overcome to exhibit phosphorescence because of the absence of spin‐orbital coupling (SOC) in the ZnII ion. The present manuscript reports the phosphorescent behaviour of a ZnII cluster [Zn7L6(μ3‐OMe)2(μ3‐OH)4]I2 (HL=methyl‐3‐methoxysalicylate) promoted by the external heavy‐atom effect (EHE) associated with the presence of iodide counter anions that act to introduce SOC into the system. This heptanuclear ZnII cluster with I− counter anions shows phosphorescence (λmax=520 nm) with an extremely long emission lifetime (τ=95.3 ms) at 77 K. More information can be found in the Communication by S. Hayami, M. Nakamura, et al. on page 5875.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201901245