WO2006063441-A1  GE ET AL.: 'Electrochemically controlled hydrogen bonding O-Quinones as simple redox-dependent receptors for arylureas' J. ORG. CHEM. vol. 65, no. 26, 2000, pages 8831 - 8838;  KARGINA Y.M. ET AL.: 'Electrochemistry of Organophosphorus Compounds' RUSS. J. GEN. CHEM. vol. 71, no. 9, 2001, pages 1393 - 1421;  LUND H. AND HAMMRICH O.: 'Organic Electrochemistry', vol. 4TH ED., 2001, MARCEL DEKKER INC.;  TUCKER J.H.R. ET AL.: 'Recent developments in the redox-switching binding of organic compounds' CHEM. SOC. REV. vol. 31, 2002, pages 147 - 156;  EVERY H.A. ET AL.: 'Substituted imidazole as proton transport facilitators in fuel cell membranes' JOINT INTERNATIONAL MEETING - 206TH MEETING OF THE ELECTROCHEMICAL SOCIETY/2004 FALL MEETING OF THE ELECTROCHEMICAL SOCIETY OF JAPAN - MEETING ABSTRACTS 2004, 1969 03 October 2004 - 08 October 2004, HONOLULU, HI,;  EVERY H.A. ET AL.: 'Substituted imidazole as proton transport facilitators in fuel cell membranes' JOINT INTERNATIONAL MEETING - 206TH MEETING OF THE ELECTROCHEMICAL SOCIETY2004 FALL MEETING OF THE ELECTROCHEMICAL SOCIETY OF JAPAN - MEETING ABSTRACTS 2004, 1969 03 October 2004 - 08 October 2004, HONOLULU, HI,;  LIDE D.R.: 'CRC Handbook on Physics and Chemistry', vol. 86TH ED., 2005 article 'Dissociation constants of Organic Acids and Bases', pages 8 - 42;  MAEDA H. ET AL.: 'One-step transformation of carboxylic acids into aldehydes induced by the electrochemical oxidation of Ph3P' CHEM. PHARM. BULL. vol. 42, no. 5, 1994, pages 1041 - 1044;  OLAH G.A. ET AL.: 'Organophosphorus Compounds. XI. 1H and 31P nuclear magnetic resonance study of the protonation of phosphines' J. ORG. CHEM. 1968, page 1832;  ZHANG X.-M. ET AL.: 'Equilibrium acidities and homolytic bond dissociation energies of the acidic C-H bonds in p-substituted triphenylphosphonium cations' J. AM. CHEM. vol. 116, 1994, pages 968 - 972;  OLAH G.A. ET AL.: 'Organophosphorus Compounds. XI. 1H and 31P nuclear magnetic resonance study of the protonation of phosphines' J. ORG. CHEM. 1968, page 1832, XP002388851;  GE ET AL.: 'Electrochemically controlled hydrogen bonding O-Quinones as simple redox-dependent receptors for arylureas' J. ORG. CHEM. vol. 65, no. 26, 2000, pages 8831 - 8838, XP008121850;  TUCKER J.H.R. ET AL.: 'Recent developments in the redox-switching binding of organic compounds' CHEM. SOC. REV. vol. 31, 2002, pages 147 - 156, XP008121851;  MAEDA H. ET AL.: 'One-step transformation of carboxylic acids into aldehydes induced by the electrochemical oxidation of Ph3P' CHEM. PHARM. BULL. vol. 42, no. 5, 1994, pages 1041 - 1044, XP008134299;  ZHANG X.-M. ET AL.: 'Equilibrium acidities and homolytic bond dissociation energies of the acidic C-H bonds in p-substituted triphenylphosphonium cations' J. AM. CHEM. vol. 116, 1994, pages 968 - 972, XP008134300;  KARGINA Y.M. ET AL.: 'Electrochemistry of Organophosphorus Compounds' RUSS. J. GEN. CHEM. vol. 71, no. 9, 2001, pages 1393 - 1421, XP008134301;  EVERY H.A. ET AL.: 'Substituted imidazole as proton transport facilitators in fuel cell membranes' JOINT INTERNATIONAL MEETING - 206TH MEETING OF THE ELECTROCHEMICAL SOCIETY/2004 FALL MEETING OF THE ELECTROCHEMICAL SOCIETY OF JAPAN - MEETING ABSTRACTS 2004, 1969 03 October 2004 - 08 October 2004, HONOLULU, HI, XP008134583;  LIDE D.R.: 'CRC Handbook on Physics and Chemistry', vol. 86TH ED., 2005 article 'Dissociation constants of Organic Acids and Bases', pages 8 - 42, XP001525575