Please use this identifier to cite or link to this item:
https://doi.org/10.1039/b316009b
DC Field | Value | |
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dc.title | Synthesis and structures of new oligomethylene-bridged double ladders. How far can the layers be separated? | |
dc.contributor.author | Beckmann, J. | |
dc.contributor.author | Dakternieks, D. | |
dc.contributor.author | Duthie, A. | |
dc.contributor.author | Kuan, F.S. | |
dc.contributor.author | Jurkschat, K. | |
dc.contributor.author | Schürmann, M. | |
dc.contributor.author | Tiekink, E.R.T. | |
dc.date.accessioned | 2014-10-16T08:43:51Z | |
dc.date.available | 2014-10-16T08:43:51Z | |
dc.date.issued | 2004-10 | |
dc.identifier.citation | Beckmann, J., Dakternieks, D., Duthie, A., Kuan, F.S., Jurkschat, K., Schürmann, M., Tiekink, E.R.T. (2004-10). Synthesis and structures of new oligomethylene-bridged double ladders. How far can the layers be separated?. New Journal of Chemistry 28 (10) : 1268-1276. ScholarBank@NUS Repository. https://doi.org/10.1039/b316009b | |
dc.identifier.issn | 11440546 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/95104 | |
dc.description.abstract | The synthesis of the α,ω-bis[dichloro(trimethylsilylmethyl) stannyl]alkanes, (Me3SiCH2)Cl2Sn(CH 2) nSnCl2(CH2SiMe3) (13, n = 5; 14, n = 6; 15, n = 7; 16, n = 8; 17, n = 10; 18, n = 12) and the corresponding oligomethylene-bridged diorganotin oxides [(Me 3SiCH2)(O)Sn(CH2)nSn(O)(CH 2SiMe3)]m (19, n = 5; 20, n = 6; 21, n = 7; 22, n = 8; 23, n = 10; 24; n = 12) is reported. The reaction of the diorganodichlorostannanes 13-18 with the corresponding diorganotin oxides 19-24 provided the spacer-bridged tetraorganodistannoxanes {[(Me3SiCH 2)ClSn(CH2)nSnCl(CH2SiMe 3)]O}4 (25, n = 5; 26, n = 6; 27, n = 7; 28, n = 8; 29, n = 10; 30, n = 12). Compounds 13-30 have been identified by elemental analyses and multinuclear NMR spectroscopy. Compounds 25, 27, 29 and 30 have also been characterised by single crystal X-ray diffraction analysis and electrospray mass spectrometry. For the latter the essential double ladder motif is maintained for all n in the solid state, but subtle changes in alignment of the ladder planes occur. Separation between the two layers of the double ladder ranges from approx. 8.7 Å (for 25, n = 5) to approx. 15 Å (for 30, n = 12). In solution there is some dissociation of the double ladders into the corresponding dimers. The degree of dissociation is favoured by increasing oligomethylene chain length n. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1039/b316009b | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1039/b316009b | |
dc.description.sourcetitle | New Journal of Chemistry | |
dc.description.volume | 28 | |
dc.description.issue | 10 | |
dc.description.page | 1268-1276 | |
dc.description.coden | NJCHE | |
dc.identifier.isiut | 000224268300016 | |
Appears in Collections: | Staff Publications |
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