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Unusually Slow Intermolecular Proton-Deuteron Exchange in Porphycene

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Published/Copyright: September 25, 2009
Zeitschrift für Physikalische Chemie
From the journal Zeitschrift für Physikalische Chemie Volume 222 Issue 8-9

Abstract

The rates of the intermolecular exchange of two internal protons by deuterons have been determined for alcohol solutions of porphycene and its 2,7,12,17-tetra-t-butyl derivative using femtosecond pump-probe polarization spectroscopy. The process is very slow, requiring approximately twenty hours to substitute both protons by deuterons in more than 90% of the molecules dissolved in bulk EtOD or BuOD at 293 K. Equal rates were found for the exchange of the first and the second proton.

Keywords: Porphycene; Proton Transfer; Pump-Probe Polarized Spectroscopy
* Correspondence address: Polish Academy of Sciences , Institute of Physical Chemistry , Kasprzaka 44/52 , 01-224 Warsaw , Polen,
Published Online: 2009-9-25
Published in Print: 2008-8-1

© by Oldenbourg Wissenschaftsverlag, München, Germany

Articles in the same Issue

  1. Hans-Heinrich Limbach zum 65. Geburtstag
  2. Water-Induced Programmable Synthesis of Water Pores
  3. New Insights into Light-Induced Deactivation of Active Rhodopsin by SVD and Global Analysis of Time-Resolved UV/Vis- and FTIR-Data
  4. Kinetic Size Effect During Dissolution of a Synthetic γ-Alumina
  5. Interaction of Chemical Reactive Species – Investigated with Spin-Lattice Relaxation and NOE Measurements
  6. Unusually Slow Intermolecular Proton-Deuteron Exchange in Porphycene
  7. The Competition of the Loss of a Beta Fluoride and Hydron Transfer Between Carbon and Oxygen During Exchange and Elimination Reactions
  8. Reactions in Fluorinated Acetic Acid Esters Triggered by Slow Electrons: Bond Cleavages, Hydrogen Transfer Reactions and Loss of Halocarbons
  9. Infrared Absorption Spectra in the Hydroxyl Stretching Regions of Gaseous Tropolone OHO Isotopomers
  10. Intramolecular Hydrogen Bonding of 5-Acyl-3-methylrhodanines
  11. NMR Study of Blue-Shifting Hydrogen Bonds Formed by Fluoroform in Solution
  12. The Effect of Environment on the Dynamics of Proton Dissociation in Water
  13. Ortho-Nitrobenzaldehyde 1:1 Water Complexes. The Influence of Solute Water Interactions in the Vertical Excited Spectrum
  14. Where are Protons and Deuterons in KHpD1–pCO3? A Neutron Diffraction Study
  15. Mechanisms of Double Proton Transfer. Theory and Applications
  16. Towards Toroidal Hydrogen Bonds
  17. Hydrogen Tunneling in Glucose Oxidation by the Archaeon Thermoplasma acidophilum
  18. DFT Study of Proton Dynamics in the Potassium Hydrogen Maleate Crystal: the Infrared Versus the Inelastic Neutron Scattering Spectra
  19. Transition Path Sampling Study of the Reaction Catalyzed by Purine Nucleoside Phosphorylase
  20. A Full-Dimensional Quantum Dynamical Study of the Vibrational Ground State of H3O2– and its Isotopomers
  21. DFT Calculations of 51V Solid-State NMR Parameters of Vanadium(V) Model Complexes
  22. Weak Hydrogen Bonds Make a Difference: Dimers of Jet-Cooled Halogenated Ethanols
https://doi.org/10.1524/zpch.2008.5380
Keywords for this article
Porphycene; Proton Transfer; Pump-Probe Polarized Spectroscopy

Articles in the same Issue

  1. Hans-Heinrich Limbach zum 65. Geburtstag
  2. Water-Induced Programmable Synthesis of Water Pores
  3. New Insights into Light-Induced Deactivation of Active Rhodopsin by SVD and Global Analysis of Time-Resolved UV/Vis- and FTIR-Data
  4. Kinetic Size Effect During Dissolution of a Synthetic γ-Alumina
  5. Interaction of Chemical Reactive Species – Investigated with Spin-Lattice Relaxation and NOE Measurements
  6. Unusually Slow Intermolecular Proton-Deuteron Exchange in Porphycene
  7. The Competition of the Loss of a Beta Fluoride and Hydron Transfer Between Carbon and Oxygen During Exchange and Elimination Reactions
  8. Reactions in Fluorinated Acetic Acid Esters Triggered by Slow Electrons: Bond Cleavages, Hydrogen Transfer Reactions and Loss of Halocarbons
  9. Infrared Absorption Spectra in the Hydroxyl Stretching Regions of Gaseous Tropolone OHO Isotopomers
  10. Intramolecular Hydrogen Bonding of 5-Acyl-3-methylrhodanines
  11. NMR Study of Blue-Shifting Hydrogen Bonds Formed by Fluoroform in Solution
  12. The Effect of Environment on the Dynamics of Proton Dissociation in Water
  13. Ortho-Nitrobenzaldehyde 1:1 Water Complexes. The Influence of Solute Water Interactions in the Vertical Excited Spectrum
  14. Where are Protons and Deuterons in KHpD1–pCO3? A Neutron Diffraction Study
  15. Mechanisms of Double Proton Transfer. Theory and Applications
  16. Towards Toroidal Hydrogen Bonds
  17. Hydrogen Tunneling in Glucose Oxidation by the Archaeon Thermoplasma acidophilum
  18. DFT Study of Proton Dynamics in the Potassium Hydrogen Maleate Crystal: the Infrared Versus the Inelastic Neutron Scattering Spectra
  19. Transition Path Sampling Study of the Reaction Catalyzed by Purine Nucleoside Phosphorylase
  20. A Full-Dimensional Quantum Dynamical Study of the Vibrational Ground State of H3O2– and its Isotopomers
  21. DFT Calculations of 51V Solid-State NMR Parameters of Vanadium(V) Model Complexes
  22. Weak Hydrogen Bonds Make a Difference: Dimers of Jet-Cooled Halogenated Ethanols
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