Triptycenes as a molecular building block to introduce internal free volume in organic materials

Chapter 1. Triptycenes are shown to possess "internal free volume" swept out between their aromatic faces, which enable them to align their long axis normal to the host alignment to most efficiently fill this volume. This alignment is the opposite of that expected by conventional aspect ratio considerations alone. Anthracene chromophores were attached directly into the triptycene backbone and their polarized UV-Visible spectra were probed to determine their overall orientation. This alignment is guided by the minimization of the free volume of the system and works for both liquid crystalline and poly(vinyl chloride) hosts.

Department dc:contributor.department

Massachusetts Institute of Technology. Dept. of Chemistry.

Grantor dc:publisher

Massachusetts Institute of Technology

Year dc:date.issued

2002

Author dc:creator

• Long, Timothy Michael, 1975-

Advisor dc:contributor.advisor

• Timothy M. Swager.

• Chemistry.

Statement dc:rights

• M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.

Licence dc:rights.uri

• http://dspace.mit.edu/handle/1721.1/7582

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/1721.1/8048

OAI identifier oai:identifier

oai:dspace.mit.edu:1721.1/8048