scholarly journals A water-soluble bithiophene with increased photoluminescence efficiency and metal recognition ability

2020 ◽  
Vol 49 (35) ◽  
pp. 12319-12326
Author(s):  
Estefanía Delgado-Pinar ◽  
Marta Pineiro ◽  
J. Sérgio Seixas de Melo
Keyword(s):  
Excited State ◽  
High Selectivity ◽  
Water Soluble ◽  
State Behavior ◽  
Recognition Ability ◽  
Metal Recognition ◽  
Photoluminescence Efficiency

A water soluble and highly fluorescent bithiophene was obtained. The excited state behavior is fully characterized and with tert-butylsulfonamide derivatization the recognition of Cu(ii) and Hg(ii) with high selectivity was observed.

scholarly journals Excited States of Gold(I) Compounds, Luminescence and Gold-Gold Bonding

1994 ◽  
Vol 1 (5-6) ◽  
pp. 459-466 ◽  
Author(s):  
John P. Fackler ◽  
Zerihun Assefa ◽  
Jennifer M. Forward ◽  
Richard J. Staples
Keyword(s):  
Aqueous Solution ◽  
Excited State ◽  
Triplet State ◽  
Excited States ◽  
Ground State ◽  
Superoxide Anion ◽  
Direct Interaction ◽  
Water Soluble ◽  
State Behavior ◽  
Β Carotene

It has long been established by Khan that the superoxide anion, O2-, generates singlet oxygen, O21Δg, during dismutation. Auranofin, gold-phosphine thiols, β-Carotene, and metal-sulfur compounds can rapidly quench singlet O2. The quenching of the O21Δg, which exists at 7752 cm-1 above the ground state triplet, may be due to the direct interaction of the singlet O2 with gold(I) or may require special ligands such as those containing sulfur coordinated to the metal. Thus we have been examining the excited state behavior of gold(I) species and the mechanisms for luminescence. Luminescence is observed under various conditions, with visible emission ranging from blue to red depending on the ligands coordinated to gold(I). Triplet state emission can be found from mononuclear three coordinate Au(I) species, including species which display this behavior in aqueous solution. A description is given of the luminescent three coordinate TPA (triazaphosphaadamantane) and TPPTS (triphenylphosphine-trisulfonate) complexes, the first examples of water soluble luminescent species of gold(I).

Excited-state properties of water-soluble porphyrin dimers

1986 ◽  
Vol 130 (6) ◽  
pp. 555-559 ◽  
Author(s):  
U. Hofstra ◽  
R.B.M. Koehorst ◽  
T.J. Schaafsma
Keyword(s):  
Excited State ◽  
Water Soluble ◽  
Water Soluble Porphyrin ◽  
Porphyrin Dimers

Solvent-Controlled Excited State Behavior:  2-(2‘-Pyridyl)indoles in Alcohols

1996 ◽  
Vol 118 (14) ◽  
pp. 3508-3518 ◽  
Author(s):  
Jerzy Herbich ◽  
Chi-Ying Hung ◽  
Randolph P. Thummel ◽  
Jacek Waluk
Keyword(s):  
Excited State ◽  
State Behavior

Efficient sensing of fluoride ions in water using a novel water soluble self-assembled supramolecular sensor based on pillar[5]arene

RSC Advances ◽  
2016 ◽  
Vol 6 (113) ◽  
pp. 111928-111933 ◽  
Author(s):  
Qi Lin ◽  
Feng Zheng ◽  
Lu Liu ◽  
Peng-Peng Mao ◽  
You-Ming Zhang ◽  
...  
Keyword(s):  
High Selectivity ◽  
Water Soluble ◽  
Fluoride Ions ◽  
Competitive Coordination ◽  
Self Assembled

By rationally introducing competitive coordination, the supramolecular sensors could reversibly sense Fe3+ and F− in water with high selectivity and sensitivity.

Triplet Excited State Behavior of Naphthalene-Based Pseudopeptides in the Presence of Energy Donors

2012 ◽  
Vol 116 (33) ◽  
pp. 9957-9962 ◽  
Author(s):  
Paula Bonancía ◽  
Laura Vigara ◽  
Francisco Galindo ◽  
Santiago V. Luis ◽  
M. Consuelo Jiménez ◽  
...  
Keyword(s):  
Excited State ◽  
Triplet Excited State ◽  
State Behavior

Coordination Mode Dependent Excited State Behavior in Group 8 Phosphino(terthiophene) Complexes

2011 ◽  
Vol 50 (11) ◽  
pp. 5113-5122 ◽  
Author(s):  
Stephanie A. Moore ◽  
Jeffrey K. Nagle ◽  
Michael O. Wolf ◽  
Brian O. Patrick
Keyword(s):  
Excited State ◽  
Coordination Mode ◽  
State Behavior

A water soluble ESIPT-based fluorescent chemodosimeter for the ratiometric detection of palladium ions in aqueous solution and its application in live-cell imaging

2018 ◽  
Vol 42 (19) ◽  
pp. 15587-15592 ◽  
Author(s):  
Jing Huang ◽  
Yu Ding ◽  
Hongyu Fu ◽  
Bo Chen ◽  
Yifeng Han
Keyword(s):  
Aqueous Solution ◽  
Excited State ◽  
Proton Transfer ◽  
Live Cell Imaging ◽  
Cell Imaging ◽  
Intramolecular Proton Transfer ◽  
Live Cell ◽  
Water Soluble ◽  
Ratiometric Detection ◽  
Fluorescent Chemodosimeter

A new Excited State Intramolecular Proton Transfer (ESIPT) based water-soluble fluorescent chemodosimeter for the ratiometric detection of palladium ions has been rationally designed and developed.

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