Spectroscopic study on the photophysical properties of chlorine substituted tetraphenylporphyrinhistidine and its zinc (?) complexes

2003 ◽  
Vol 48 (17) ◽  
pp. 1794
Author(s):  
Huijuan ZHANG
Keyword(s):  
Spectroscopic Study ◽  
Photophysical Properties ◽  
Zinc Complexes

scholarly journals Photophysical tuning of the aggregation-induced emission of a series of para-substituted aryl bis(imino)acenaphthene zinc complexes

2015 ◽  
Vol 44 (26) ◽  
pp. 11984-11996 ◽  
Author(s):  
Daniel A. Evans ◽  
Lucia Myongwon Lee ◽  
Ignacio Vargas-Baca ◽  
Alan H. Cowley
Keyword(s):  
Photophysical Properties ◽  
Zinc Complexes ◽  
Aggregation Induced Emission

Bis(imino)acenaphthene (BIAN) zinc complexes with para-substituted aryl groups have been synthesized and investigated from the standpoint of their photophysical properties.

Synthesis, structure and photophysical properties of 2-benzhydryl-4-methyl-6-(aryliminomethyl)phenol ligands and the zinc complexes thereof

2012 ◽  
Vol 392 ◽  
pp. 292-299 ◽  
Author(s):  
Zihong Zhou ◽  
Wen Li ◽  
Xiaohua Hou ◽  
Langqiu Chen ◽  
Xiang Hao ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Zinc Complexes

Influence of para substituents in controlling photophysical behavior and different non-covalent weak interactions in zinc complexes of a phenol based “end-off” compartmental ligand

2015 ◽  
Vol 44 (46) ◽  
pp. 20032-20044 ◽  
Author(s):  
Prateeti Chakraborty ◽  
Jaydeep Adhikary ◽  
Sugata Samanta ◽  
Ishani Majumder ◽  
Chiara Massera ◽  
...  
Keyword(s):  
Weak Interactions ◽  
Photophysical Properties ◽  
Zinc Complexes ◽  
Photophysical Behavior

The role of para substituents of three dinuclear zinc(ii) complexes on the structure, photophysical properties and their different weak interactions is investigated.

Azaphthalocyanines with extended conjugation through heteroaryl and aryl substituents: Photochemical and photophysical properties

2007 ◽  
Vol 11 (02) ◽  
pp. 130-138 ◽  
Author(s):  
Eva H. Mørkved ◽  
Nils Kr. Afseth ◽  
Petr Zimcik
Keyword(s):  
Singlet Oxygen ◽  
Absorption Spectra ◽  
Photophysical Properties ◽  
Point Of View ◽  
Zinc Complexes ◽  
Quantum Yields ◽  
Sterical Hindrance ◽  
20 Nm ◽  
Mg Complexes

Magnesium and zinc complexes of azaphthalocyanines (AzaPc) with eight peripheral aromatic (phenyl) or heteroaromatic (pyridyl, thienyl, furyl) substituents are studied from the point of view of their singlet oxygen (ΦΔ) and fluorescence (Φ F ) quantum yields, and UV-vis absorption spectra. Zn complexes have higher ΦΔ than Mg complexes by a factor of two, whereas the Mg complexes have higher Φ F than Zn complexes, also by a factor of two. Thienyl AzaPc have the highest ΦΔ among all studied substances (0.635 for Zn complex) followed by phenyl and pyridyl derivatives. The order of Φ F values is then reversed - the highest values were reached for pyridyl and phenyl derivatives followed by thienyl AzaPc. Both furyl AzaPc were unstable towards light and decomposed giving very low ΦΔ and Φ F . The Q-bands of the furyl and thienyl AzaPc were red-shifted for approx. 20 nm compared to phenyl and pyridyl derivatives indicating lower sterical hindrance between five-membered rings and thus allowing better conjugation of π-systems. Pyridyl-, thienyl- and furyl-substituted pyrazino[2,3-b]pyrazine-2,3-dicarbonitriles were also prepared but decomposed during attempted cyclotetramerizations.

Vibrational spectroscopic study, structural analysis, photophysical properties and theoretical calculations of cis-(±)-2,4,5-tris(pyridin-2-yl)imidazoline

2017 ◽  
Vol 1130 ◽  
pp. 951-962 ◽  
Author(s):  
Jesús Baldenebro-López ◽  
Alberto Báez-Castro ◽  
Daniel Glossman-Mitnik ◽  
Herbert Höpfl ◽  
Adriana Cruz-Enríquez ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Spectroscopic Study ◽  
Theoretical Calculations ◽  
Photophysical Properties
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