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https://doi.org/10.1016/S0040-4039(03)00637-3
DC Field | Value | |
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dc.title | 9,21,22-Triaza-2,11-dithia[3.3](2,6)pyridino(2,9)phenanthrolinophane: A five-donor macrocycle functioning as a bidentate ligand | |
dc.contributor.author | Ma, L. | |
dc.contributor.author | Mok, K.F. | |
dc.contributor.author | Lai, Y.-H. | |
dc.date.accessioned | 2014-10-16T08:18:18Z | |
dc.date.available | 2014-10-16T08:18:18Z | |
dc.date.issued | 2003-04-21 | |
dc.identifier.citation | Ma, L., Mok, K.F., Lai, Y.-H. (2003-04-21). 9,21,22-Triaza-2,11-dithia[3.3](2,6)pyridino(2,9)phenanthrolinophane: A five-donor macrocycle functioning as a bidentate ligand. Tetrahedron Letters 44 (17) : 3527-3530. ScholarBank@NUS Repository. https://doi.org/10.1016/S0040-4039(03)00637-3 | |
dc.identifier.issn | 00404039 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/92921 | |
dc.description.abstract | 9,21,22-Triaza-2,11-dithia[3.3](2,6)pyridino(2,9)phenanthrolinophane 4 was prepared from a cyclization reaction of 2,6-bis(mercaptomethyl)pyridine 5 and 2,9-bis(bromomethyl)phenanthroline 6. Results from 1H NMR analysis are inconclusive but those derived from semi-empirical molecular orbital PM3 calculations support a preference for a syn conformation for 4. The conformation barrier for interconversion between two syn isomers of 4 was estimated to be 36.5 kJ mol-1 on the basis of a dynamic 1H NMR study. The manganese(II) and zinc(II) complexes of 4 were prepared and the metal to ligand ratios were found to be 1:1 and 2:1, respectively, by elemental analyses. Results from an 1H NMR analysis of the zinc(II) complex of 4 suggest that only the two nitrogen atoms of the phenanthroline moiety participate in the co-ordination. © 2003 Elsevier Science Ltd. All rights reserved. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0040-4039(03)00637-3 | |
dc.source | Scopus | |
dc.subject | Bidentate ligand | |
dc.subject | Conformational behavior | |
dc.subject | Five-donor macrocycle | |
dc.subject | Pyridinophenanthrolinophane | |
dc.subject | Tetrahedral zinc | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1016/S0040-4039(03)00637-3 | |
dc.description.sourcetitle | Tetrahedron Letters | |
dc.description.volume | 44 | |
dc.description.issue | 17 | |
dc.description.page | 3527-3530 | |
dc.description.coden | TELEA | |
dc.identifier.isiut | 000182267000021 | |
Appears in Collections: | Staff Publications |
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