The first supramolecular ion triplet complex

New Journal of Chemistry

Volumn 34, Issue 7, 2010, Pages 1247-1250

  Eckelmann, Jens ^a   Saggiomo, Vittorio ^a   Sönnichsen, Frank D ^a   Lüning, Ulrich ^a  

^a UNIVERSITY OF KIEL   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

CALCIUM CHLORIDE; DIAMINE; ION; LITHIUM CHLORIDE; MACROCYCLIC COMPOUND;

ANALYTIC METHOD; ARTICLE; BINDING SITE; COMPLEX FORMATION; HYDROGEN BOND; MASS SPECTROMETRY; NUCLEAR OVERHAUSER EFFECT; POLYMERIZATION; PRIORITY JOURNAL; PROTON NUCLEAR MAGNETIC RESONANCE;

EID: 77954584787     PISSN: 11440546     EISSN: 13699261     Source Type: Journal    
DOI: 10.1039/c0nj00160k     Document Type: Article

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26. 2 than to that of 1·LiCl.
27. 2. Besides, if the complexation shall be exploited in applications such as for instance transport it must be studied in solution anyway.
28. In comparison to the first binding experiments, a slightly higher concentration of DMSO was used in order to ensure a homogeneous organic phase, needed to record reliable NOESY spectra.
29. 2D-NOESY experiments with varying mixing times were used to analyze the conformation and mobility of the free macrocycle and the complexes. Using a two-spin approximation and two known distances as a reference, average interproton distances were calculated from all observed NOE intensities after peak integration as described in ESI. In a mobile structure, the distances are physically meaningless i.e. they do not describe a single conformation, their differences upon ion binding however indicate changes in the combination of short distances and population of the conformations present.
30. 4NCl.