Macrocyclic chemistry: new research developments

by Fitzpatrick, Dániel W. Ulrich, Henry J.

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Title Statements

Full title :Macrocyclic chemistry : new research developments / Dániel W. Fitzpatrick and Henry J. Ulrich, editors.

Edition Statements

Publication Date:©2010.

Publication Statements

Publisher(s):Nova Science Publishers
Place of Publication:Hauppauge, N.Y
Language:eng
Publication Date:©2010.

The Physical Object

Description:1 online resource

Edition Identifiers

ISBN:9781612092553, 1612092551
oclc:on1162203852
LC Classification:QD400
Dewey Decimal:547/.5

MACROCYCLIC CHEMISTRY: NEW RESEARCH DEVELOPMENTS; MACROCYCLIC CHEMISTRY: NEW RESEARCH DEVELOPMENTS; CONTENTS ; PREFACE ; TETRAAZACYCLOTETRADECANE SPECIES AS MODELS OF THE POLYAZACROWN MACROCYCLES: MOLECULAR STRUCTURE AND REORGANIZATIONS IN AQUEOUS MEDIA (PH 0-14) AS PROBED BY NMR SPECTROSCOPY AND COMPUTATIONAL METHODS -- PROBLEMS AND SOLUTIONS; ABSTRACT ; 1. INTRODUCTION -- AZACROWNS AS MULTIPURPOSE LIGANDS OR RECEPTORS (STRUCTURAL ASPECTS) ; 2. NMR SPECTROSCOPY OF TETRAAZACYCLOTETRADECANES AND STRUCTURALLY SIMILAR POLYAZA MACRORINGS.

2.1. NMR Measurements for Polyamines in Aqueous Solutions (General Remarks) 2.2. Determining Protonation Mechanisms Through NMR pH-Titration Spectroscopy ; 2.2.1. Amino protonation-induced changes in eXs ; 2.2.2. Use of empirical 'shielding constants' ; 2.2.3. Use of empirical 'amine shift parameters' ; 2.2.4. Similarity of pH-titration profiles (1H and 13C NMR spectra) ; 2.2.5. 13C NMR line-broadening effects; 2.3. pH-Driven Internal Dynamics in Azacrowns as Probed by the 13C T1 Rates [83]

2.4. Polyamine 3 in the Strongly Acidic Medium: a Rejection of the Working Proposal of an Active Participation of the Nitrate Anion [85] 3. COMPUTATIONAL METHOD…