Persistent room-temperature phosphorescence or high-contrast phosphorescent mechanochromism: polymorphism-dependent different emission characteristics from a single gold() complex

Luminophores with persistent room-temperature phosphorescence (p-RTP) or effective phosphorescent mechanochromism features have significant potential applications in the field of optoelectronic materials. Until now, p-RTP and remarkable phosphorescent mechanochromism phenomena have been observed in...

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Bibliographic Details
Published in:Dalton transactions : an international journal of inorganic chemistry 2021-06, Vol.5 (22), p.7744-7749
Main Authors: Wang, Xiao-Yan, Yin, Ya, Yin, Jun, Chen, Zhao, Liu, Sheng Hua
Format: Article
Language:English
Subjects:
Crystallography
Data collection
Gold
Mechanoluminescence
Molecular structure
NMR
Nuclear magnetic resonance
Optoelectronics
Phosphorescence
Polymorphism
Room temperature
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Summary:Luminophores with persistent room-temperature phosphorescence (p-RTP) or effective phosphorescent mechanochromism features have significant potential applications in the field of optoelectronic materials. Until now, p-RTP and remarkable phosphorescent mechanochromism phenomena have been observed in some luminescent molecules with different molecular structures. However, separately realizing p-RTP and high-contrast phosphorescent mechanochromism in different polymorphs from a single luminophore is still a valuable and challenging topic. In this work, two polymorphs 1B and 1YG of a new gold( i ) complex with blue and yellow-green luminescence, respectively, are reported. Interestingly, 1B exhibits high-contrast phosphorescent mechanochromic behavior, while 1YG exhibits a persistent room-temperature phosphorescence effect. This is the first example of simultaneously obtaining double-purpose crystalline materials with a high-contrast phosphorescent mechanochromism or persistent room-temperature phosphorescence feature from a single luminophore. Two polymorphs 1B and 1YG of a new gold( i ) complex are reported. Interestingly, 1B exhibits high-contrast phosphorescent mechanochromic behavior, while 1YG exhibits a persistent room-temperature phosphorescence effect.
ISSN:1477-9226
1477-9234
DOI:10.1039/d1dt00959a