Syntheses, Structures, and Steady State and Time Resolved Photophysical Properties of a Tetraiminodiphenol Macrocyclic Ligand and Its Dinuclear Zinc(II)/Cadmium(II) Complexes with Coordinating and Noncoordinating Anions

2012 ◽  
Vol 51 (16) ◽  
pp. 8739-8749 ◽  
Author(s):  
Samit Majumder ◽  
Leena Mandal ◽  
Sasankasekhar Mohanta
Keyword(s):  
Steady State ◽  
Photophysical Properties ◽  
Macrocyclic Ligand ◽  
Time Resolved

Photophysical properties of meso, meso-linked porphyrin arrays: steady-state and time-resolved fluorescence polarization

2001 ◽  
Vol 117 (1-3) ◽  
pp. 183-187 ◽  
Author(s):  
Yong Hee Kim ◽  
Hyun Sun Cho ◽  
Dongho Kim ◽  
Seong Keun Kim ◽  
Naoya Yoshida ◽  
...  
Keyword(s):  
Steady State ◽  
Fluorescence Polarization ◽  
Photophysical Properties ◽  
Time Resolved Fluorescence ◽  
Time Resolved

A convenient synthetic approach to obtain meso-Uracil-BODIPY

Synlett ◽  
2021 ◽  
Author(s):  
Mariachiara Trapani ◽  
Hans Elemans ◽  
Maria Angela Castriciano ◽  
Angelo Nicosia ◽  
Placido Giuseppe Mineo ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Steady State ◽  
Low Cost ◽  
Photophysical Properties ◽  
Aldehyde Group ◽  
Synthetic Approach ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Uracil Derivatives ◽  
Convenient Synthetic Approach

An effective and convenient protocol for the synthesis of 1-Substituted-6-formyl-uracil derivatives has been developed. A three-step sequence has allowed obtaining new 6-Formyl uracil with various substituents at N-1, in large quantity using low-cost precursors. Uracil molecules containing an aldehyde group have been used as useful precursors for the preparation of meso-(1’-Substituted-6’-uracil)-BODIPY derivatives. In this way, regioselectively functionalized BODIPYs directly connected to a nucleobase were prepared in yields from 30 to 45%. MALDI-TOF mass spectrometry, NMR, UV-vis absorption, steady-state and time-resolved fluorescence spectroscopies have been used to characterize the structures and the spectroscopic/photophysical properties of the obtained dyes.

The steady-state and time-resolved photophysical properties of a dimeric indium phthalocyanine complex

2006 ◽  
Vol 98 (2-3) ◽  
pp. 212-216 ◽  
Author(s):  
Yu Chen ◽  
Yasuyuki Araki ◽  
Danilo Dini ◽  
Ying Liu ◽  
Osamu Ito ◽  
...  
Keyword(s):  
Steady State ◽  
Photophysical Properties ◽  
Time Resolved ◽  
Phthalocyanine Complex

Syntheses, crystal structures and steady state and time-resolved fluorescence properties of a PET based macrocycle and its dinuclear ZnII/CdII/HgII complexes

2016 ◽  
Vol 45 (43) ◽  
pp. 17365-17381 ◽  
Author(s):  
Leena Mandal ◽  
Samit Majumder ◽  
Sasankasekhar Mohanta
Keyword(s):  
Steady State ◽  
Crystal Structures ◽  
Present Report ◽  
Macrocyclic Ligand ◽  
Fluorescence Properties ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Absorption And Emission

The present report deals with solution spectroscopic (absorption and emission) and colorimetric studies of a Robson type tetraaminodiphenol macrocyclic ligand and its ZnII2, CdII2 and HgII2 compounds.

STEADY STATE AND TIME RESOLVED SPECTROSCOPIC STUDY OF CONFINED DYE INSIDE γ-CD IN PRESENCE OF Au NANOPARTICLES

2011 ◽  
Vol 10 (04n05) ◽  
pp. 867-871
Author(s):  
TAPASI SEN ◽  
AMITAVA PATRA
Keyword(s):  
Steady State ◽  
Spectroscopic Study ◽  
Au Nanoparticles ◽  
Light Harvesting ◽  
Photophysical Properties ◽  
Photoluminescence Quenching ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Potential Applications

The photophysical properties of the confined dye inside the γ-CD in presence of Au nanoparticles have been studied by steady state and time resolved spectroscopy. It is found that the photoluminescence quenching of C480 dye increases from 26% to 49% due to confinement of dye inside γ-CD. The designing of such new optical based materials having coumarin 480 dye inside the γ-CD in presence of Au nanoparticles may have potential applications for light harvesting system.

scholarly journals Photophysical properties of two novel tetraphenylporphyrins substituted by guanidiniocarbonyl and monocyclic guanidine groups

2001 ◽  
Vol 3 (3) ◽  
pp. 147-151 ◽  
Author(s):  
Pavel Kubát ◽  
Kamil Lang ◽  
Vladimír Král ◽  
Franz P. Schmidtchen
Keyword(s):  
Steady State ◽  
Quantum Yield ◽  
Singlet Oxygen ◽  
Electronic Absorption Spectra ◽  
Photophysical Properties ◽  
Soret Band ◽  
Monomeric Form ◽  
High Quantum Yield ◽  
Time Resolved ◽  
J Aggregates

Photophysical properties of two novel guanidiniocarbonyl (I) and monocyclic guanidine (II) tetraphenylporphyrins and their interaction with DNA were investigated by steady-state and time-resolved absorption and emission spectroscopies.Istays predominantly monomeric in aqueous solutions. It produces singlet oxygen with high quantum yield(ΦΔ=0.67)that is typical for monomeric porphyrins. The electronic absorption spectra ofIare not influenced by interaction with DNA. This is in contrast with monomeric tetratolylporphyrins bearing phosphonium,ammonium and pyridinium groups where the formation of stable complexes with DNA is accompanied by a characteristic red shift of the Soret band.IIextensively forms Hand J-aggregates,which do not produce singlet oxygen(ΦΔ<0.01). In the presence of DNA only a small fraction ofIIremains in monomeric form that is bound to DNA exterior.

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