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Mesomorphism of complexed 2,6-disubstituted pyridine ligands: crystal and molecular structure of two bent-core pyridines

Mesomorphism of complexed 2,6-disubstituted pyridine ligands: crystal and molecular structure of two bent-core pyridines
Mesomorphism of complexed 2,6-disubstituted pyridine ligands: crystal and molecular structure of two bent-core pyridines
Bent-core, polycatenar pyridines are reported, synthesized via a Siegrist coupling of di- and tri-alkoxybenzylidene fragments with 2,6-dimethylpyridine. None of these pyridines was liquid crystalline. Isomeric materials based on a 3,5-disubstituted pyridine core were mesomorphic in hydrogen-bonded complexes, whereas these new materials were not. However, the new pyridines did form mesomorphic metal complexes with silver salts. Some insight into this behaviour is gleaned from single crystal structure determinations of the model systems, 3,5-bis(3',4'-dimethoxystyryl) pyridine and 2,6-bis(3',4'-dimethoxystyryl) pyridine.
liquid-crystals, polyalkoxystilbazole complexes, alkoxystilbazoles, silver(i), polycatenar, iridium(i), acid
1366-5855
399-407
Torralba, Mari Carmen
57c102f7-1146-4d9a-b5fd-38f97c6d08cd
Huck, Deborah M.
bd1af7a1-e1e6-4562-8204-4d90996565d2
Nguyen, H. Loc
ace36cf1-db32-4413-8a7d-b84abbc9ecb2
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Donnio, Bertrand
80680a83-a6e5-4398-bcd5-80fc0c19fb06
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Bruce, Duncan W.
1796c2a0-111d-4c01-bf59-8407cdba8d57
Torralba, Mari Carmen
57c102f7-1146-4d9a-b5fd-38f97c6d08cd
Huck, Deborah M.
bd1af7a1-e1e6-4562-8204-4d90996565d2
Nguyen, H. Loc
ace36cf1-db32-4413-8a7d-b84abbc9ecb2
Horton, Peter N.
154c8930-bfc3-495b-ad4a-8a278d5da3a5
Donnio, Bertrand
80680a83-a6e5-4398-bcd5-80fc0c19fb06
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Bruce, Duncan W.
1796c2a0-111d-4c01-bf59-8407cdba8d57

Torralba, Mari Carmen, Huck, Deborah M., Nguyen, H. Loc, Horton, Peter N., Donnio, Bertrand, Hursthouse, Michael B. and Bruce, Duncan W. (2006) Mesomorphism of complexed 2,6-disubstituted pyridine ligands: crystal and molecular structure of two bent-core pyridines. Liquid Crystals, 33 (4), 399-407. (doi:10.1080/02678290600633485).

Record type: Article

Abstract

Bent-core, polycatenar pyridines are reported, synthesized via a Siegrist coupling of di- and tri-alkoxybenzylidene fragments with 2,6-dimethylpyridine. None of these pyridines was liquid crystalline. Isomeric materials based on a 3,5-disubstituted pyridine core were mesomorphic in hydrogen-bonded complexes, whereas these new materials were not. However, the new pyridines did form mesomorphic metal complexes with silver salts. Some insight into this behaviour is gleaned from single crystal structure determinations of the model systems, 3,5-bis(3',4'-dimethoxystyryl) pyridine and 2,6-bis(3',4'-dimethoxystyryl) pyridine.

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More information

Published date: 2006
Keywords: liquid-crystals, polyalkoxystilbazole complexes, alkoxystilbazoles, silver(i), polycatenar, iridium(i), acid

Identifiers

Local EPrints ID: 44558
URI: http://eprints.soton.ac.uk/id/eprint/44558
ISSN: 1366-5855
PURE UUID: d820d3af-f48d-4756-823b-9612d42a19bb
ORCID for Peter N. Horton: ORCID iD orcid.org/0000-0001-8886-2016

Catalogue record

Date deposited: 02 Mar 2007
Last modified: 26 Nov 2019 01:53

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