Shastri, B. P. ; Easwaran, K. R. K. (1984) Conformations of lasalocid A-lithium complexes in acetonitrile International Journal of Biological Macromolecules, 6 (4). pp. 219-223. ISSN 0141-8130
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/014181...
Related URL: http://dx.doi.org/10.1016/0141-8130(84)90035-7
Abstract
The interaction of the ionophore antibiotic lasalocid-A with lithium perchlorate in acetonitrile has been studied by circular dichroism (c.d.) and 1H, 13C and 7Li nuclear magnetic resonance (n.m.r.) techniques. Analysis of the c.d. data has shown that both the 2:1 sandwich (ionophore-cation-ionosphore) complex and 1:1 complex coexist in solution. The n.m.r. data are consistent with a conformational model in which the carbonyl oxygen, he tetrahydrofuran and the tetrahydropyran ring oxygen atoms, two hydroxyl group oxygens and either a water or a solvent molecule coordinate to the lithium ion.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Antibiotics; Conformation; Ionophore; Circular Dichroism; Nuclear Magnetic; Resonance; Lasalocid-A |
| ID Code: | 11033 |
| Deposited On: | 09 Nov 2010 04:14 |
| Last Modified: | 31 May 2011 09:04 |
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