File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1039/p29850001559
- Scopus: eid_2-s2.0-37049110541
- WOS: WOS:A1985ATD6900013
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Dynamic 1H nuclear magnetic resonance spectroscopic studies of complexes formed between substituted ammonium cations and two chiral diaza-crown ethers incorporating asymmetric carbohydrate units
Title | Dynamic <sup>1</sup>H nuclear magnetic resonance spectroscopic studies of complexes formed between substituted ammonium cations and two chiral diaza-crown ethers incorporating asymmetric carbohydrate units |
---|---|
Authors | |
Issue Date | 1985 |
Citation | Journal of the Chemical Society, Perkin Transactions 2, 1985, n. 10, p. 1559-1562 How to Cite? |
Abstract | Two diaza-18-crown-6 derivatives (1) and (2), incorporating methyl 4,6-O-benzylidene- and methyl 4,6-O-[(S)-phenylethylidene]-x-D-mannopyranosidic residues, have been shown, by variabletemperature high-field 1H n.m.r. spectroscopy, to form strong anisometric 1:1 complexes with substituted ammonium cations in CD2CI2 solutions. Although there are a few examples of almost equally populated anisometric complexes, in most cases the major complex is associated with the β-face of the macrocyclic ring. Relevant thermodynamic data have been obtained from integration of appropriate signals in the low-temperature spectra. Approximate kinetic data have been evaluated using appropriate equations for site exchange between unequally populated sites. |
Persistent Identifier | http://hdl.handle.net/10722/332808 |
ISSN | |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Pietraszkiewicz, Marek | - |
dc.contributor.author | Fraser Stoddart, J. | - |
dc.date.accessioned | 2023-10-06T05:14:26Z | - |
dc.date.available | 2023-10-06T05:14:26Z | - |
dc.date.issued | 1985 | - |
dc.identifier.citation | Journal of the Chemical Society, Perkin Transactions 2, 1985, n. 10, p. 1559-1562 | - |
dc.identifier.issn | 1472-779X | - |
dc.identifier.uri | http://hdl.handle.net/10722/332808 | - |
dc.description.abstract | Two diaza-18-crown-6 derivatives (1) and (2), incorporating methyl 4,6-O-benzylidene- and methyl 4,6-O-[(S)-phenylethylidene]-x-D-mannopyranosidic residues, have been shown, by variabletemperature high-field 1H n.m.r. spectroscopy, to form strong anisometric 1:1 complexes with substituted ammonium cations in CD2CI2 solutions. Although there are a few examples of almost equally populated anisometric complexes, in most cases the major complex is associated with the β-face of the macrocyclic ring. Relevant thermodynamic data have been obtained from integration of appropriate signals in the low-temperature spectra. Approximate kinetic data have been evaluated using appropriate equations for site exchange between unequally populated sites. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of the Chemical Society, Perkin Transactions 2 | - |
dc.title | Dynamic <sup>1</sup>H nuclear magnetic resonance spectroscopic studies of complexes formed between substituted ammonium cations and two chiral diaza-crown ethers incorporating asymmetric carbohydrate units | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1039/p29850001559 | - |
dc.identifier.scopus | eid_2-s2.0-37049110541 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | 1559 | - |
dc.identifier.epage | 1562 | - |
dc.identifier.isi | WOS:A1985ATD6900013 | - |