K verejnemu zdravi na prelomu 20. a 21. stoleti v kontextu trvale udrzitelneho zivota.

Available from STL Prague, CZ / NTK - National Technical LibrarySIGLECZCzech Republi

SYNTHESIS, STRUCTURE AND ANION COORDINATION CHEMISTRY OF A NOVEL MACROCYCLIC COBALTOCENIUM RECEPTOR

A new macrocyclic amide-substituted cobaltocenium receptor, 1,1′-[(ethylenedioxy)bis(ethyleneaminocarbonyl)]cobaltocenium hexafluorophosphate 2 has been prepared and its single-crystal X-ray structure determined. Proton NMR anion co-ordination studies revealed that 2 and other new acyclic cobaltocenium derivatives complex chloride and bromide anions with 1:1 stoichiometry. Comparative stability constant evaluations imply that the macrocyclic receptor 2 forms halide complexes of greatest thermodynamic stability, suggestive of a 'macrocyclic anion effect'. Cyclic voltammetric investigations showed the cobaltocenium receptors to electrochemically recognise halide anions

ACYCLIC REDOX RESPONSIVE ANION RECEPTORS CONTAINING AMIDE LINKED COBALTICINIUM MOIETIES

New acyclic redox responsive anion receptors containing amide linked cobalticinum moieties are prepared; preliminary anion coordination studies reveal that the combination of a positively charged cobalticinium unit together with an amide N-H group are the essential components for the molecular electro-chemical recognition of anionic guest species

ANION RECOGNITION BY ACYCLIC REDOX-RESPONSIVE AMIDE-LINKED COBALTOCENIUM RECEPTORS

New acyclic tripodal mono- and 1,1′-bis-substituted amide-linked cobaltocenium ligands have been prepared. Proton NMR spectroscopic and cyclic voltammetric anion co-ordination investigations reveal that the combination of a positively charged cobaltocenium unit together with an amide N-H group are the essential components for the molecular and electrochemical recognition of anionic guest species. Correlations were found to exist between Hammett σ p values of electron-donating and -withdrawing substituents of monosubstituted aryl amide cobaltocenium derivatives and relative magnitudes of halide-anion induced perturbations of the amide proton NMR chemical shift and cathodic shift of the respective cobaltocenium-cobaltocene reduction redox couple

DICARBOXYLATE ANION RECOGNITION BY A REDOX-RESPONSIVE DITOPIC BIS(COBALTICINIUM) CALIX[4]ARENE RECEPTOR MOLECULE

A novel calix[4]arene ditopic anion receptor molecule containing two cobalticinium moieties has been prepared and shown by 1H NMR and cyclic voltammetry to coordinate and electrochemically recognise anions including the dicarboxylate dianion adipate

Attachment of trianglamines to silicon wafers, chiral recognition by chemical force microscopy

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