Literature DB >> 17846872

Pyrene-1-carboxylate in water and glycerol solutions: origin of the change of pK upon excitation.

Nathaniel V Nucci1, Bogumil Zelent, Jane M Vanderkooi.   

Abstract

Pyrene-1-carboxy acid has a pK of 4 in the ground state, and a pK of 8 in the excited state. Fluorescence spectra of the acid and base forms are presented as a function of solvent and temperature. Ab initio quantum calculations indicate that the bond between the ring system and the carboxyl group has aromatic character that becomes stronger upon excitation. This stabilization helps to account for the increase in pK upon excitation.

Entities:  

Mesh：

Substances：

Year:  2007        PMID： 17846872     DOI： 10.1007/s10895-007-0233-x

Source DB:  PubMed          Journal:  J Fluoresc        ISSN： 1053-0509            Impact factor:   2.217


  10 in total

1.  Electronic determinants of photoacidity in cyanonaphthols.

Authors:  Noam Agmon; Wolfgang Rettig; Christian Groth
Journal:  J Am Chem Soc       Date:  2002-02-13       Impact factor: 15.419

2.  Elementary steps in excited-state proton transfer.

Authors:  Noam Agmon
Journal:  J Phys Chem A       Date:  2005-01-13       Impact factor: 2.781

3.  Pyrene. A probe of lateral diffusion in the hydrophobic region of membranes.

Authors:  J M Vanderkooi; J B Callis
Journal:  Biochemistry       Date:  1974-09-10       Impact factor: 3.162

4.  Excited-state proton transfer as a biological probe. Determination of rate constants by means of nanosecond fluorometry.

Authors:  M R Loken; J W Hayes; J R Gohlke; L Brand
Journal:  Biochemistry       Date:  1972-12-05       Impact factor: 3.162

5.  Molecular level probing of preferential hydration and its modulation by osmolytes through the use of pyranine complexed to hemoglobin.

Authors:  Camille J Roche; Feng Guo; Joel M Friedman
Journal:  J Biol Chem       Date:  2006-10-22       Impact factor: 5.157

6.  Time-resolved fluorescence measurements.

Authors:  M G Badea; L Brand
Journal:  Methods Enzymol       Date:  1979       Impact factor: 1.600

7.  Proton antenna effect of the gamma-cyclodextrin outer surface, measured by excited state proton transfer.

Authors:  Rinat Gepshtein; Pavel Leiderman; Dan Huppert; Elad Project; Esther Nachliel; Menachem Gutman
Journal:  J Phys Chem B       Date:  2006-12-28       Impact factor: 2.991

8.  Protonation of excited state pyrene-1-carboxylate by phosphate and organic acids in aqueous solution studied by fluorescence spectroscopy.

Authors:  Bogumil Zelent; Jane M Vanderkooi; Ryan G Coleman; Ignacy Gryczynski; Zygmunt Gryczynski
Journal:  Biophys J       Date:  2006-08-18       Impact factor: 4.033

9.  Density functional calculations of the vibronic structure of electronic absorption spectra.

Authors:  Marc Dierksen; Stefan Grimme
Journal:  J Chem Phys       Date:  2004-02-22       Impact factor: 3.488

10.  Gaugement of the inner space of the apomyoglobin's heme binding site by a single free diffusing proton. II. Interaction with a bulk proton.

Authors:  E Shimoni; E Nachliel; M Gutman
Journal:  Biophys J       Date:  1993-02       Impact factor: 4.033
  10 in total
  3 in total

1.  Phosphate assisted proton transfer in water and sugar glasses: a study using fluorescence of pyrene-1-carboxylate and IR spectroscopy.

Authors:  Bogumil Zelent; Jane M Vanderkooi; Nathaniel V Nucci; Ignacy Gryczynski; Zygmunt Gryczynski
Journal:  J Fluoresc       Date:  2008-05-22       Impact factor: 2.217

2.  Quasi-molecular fluorescence from graphene oxide.

Authors:  Charudatta Galande; Aditya D Mohite; Anton V Naumov; Wei Gao; Lijie Ci; Anakha Ajayan; Hui Gao; Anchal Srivastava; R Bruce Weisman; Pulickel M Ajayan
Journal:  Sci Rep       Date:  2011-09-08       Impact factor: 4.379

3.  Combining energy and electron transfer in a supramolecular environment for the "green" generation and utilization of hydrated electrons through photoredox catalysis.

Authors:  Christoph Kerzig; Martin Goez
Journal:  Chem Sci       Date:  2016-03-01       Impact factor: 9.825
  3 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.