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http://hdl.handle.net/2289/1297Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Pratibha, R. | - |
| dc.contributor.author | Madhusudana, N.V. | - |
| dc.contributor.author | Sadashiva, B.K. | - |
| dc.date.accessioned | 2006-05-23T11:29:46Z | - |
| dc.date.available | 2006-05-23T11:29:46Z | - |
| dc.date.issued | 2005 | - |
| dc.identifier.citation | Physical Review E, 2005, Vol.71, 011701 | en |
| dc.identifier.issn | ISSN 1550-2376 (online) | - |
| dc.identifier.issn | 1539-3755 (print) | - |
| dc.identifier.uri | http://hdl.handle.net/2289/1297 | - |
| dc.description.abstract | We report two distinct types of two-dimensionally periodic phases in different concentration regions of a binary system composed of the bent-core (BC) compound 1,3-phenylenebis[4-(3-methylbenzoyloxy)]4[prime]-n-dodecylbiphenyl 4[prime]-carboxylate (BC12) and the rodlike (R) compound 4-n-octyloxy 4[prime]-cyanobiphenyl (8OCB). BC12 exhibits only the lamellar B2 phase. 8OCB which has a highly polar cyano end group exhibits the smectic-Ad phase with a lamellar structure of partial bilayers made of antiparallel pairs of the polar molecules. The molecular arrangements in the two-dimensionally periodic phases have been deduced based on optical microscopy, polarized infrared and x-ray diffraction studies. The arrangement in the two-dimensionally periodic phase in lower concentration ranges of BC12 (24 to 35 mol%) is dictated by the partial bilayer structure formed by the rods. The BC molecules arrange themselves with their arrow axes parallel to the long axes of the R molecules and the structure conforms to the c2mm space group symmetry. In higher concentration ranges of BC12 (35 to 60 mol%) the structure is dominated by the BC molecules, to form the familiar B1 phase with the p2mg space group symmetry. The R molecules lie at the interfaces of these domains stabilizing the structure. | en |
| dc.format.extent | 1303865 bytes | - |
| dc.format.mimetype | application/pdf | - |
| dc.language.iso | en | en |
| dc.publisher | The American Physical Society | en |
| dc.relation.uri | http://link.aps.org/abstract/PRE/v71/e011701 | en |
| dc.rights | (2005) by the American Physical Society | en |
| dc.title | Two-dimensionally periodic phases in mixtures of compounds made of rodlike and bent-core molecules | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (SCM) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2005 PRE 71 p011701.pdf | 12 pages | 1.27 MB | Adobe PDF | View/Open |
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