ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Polymorphism in Opto-Electronic Materials with a Benzothiazole-fluorene Core: A Consequence of High Conformational Flexibility of pi-Conjugated Backbone and Alkyl Side Chains

Dikundwar, Amol G and Dutta, Gitish K and Row, Tayur Guru N and Patil, Satish (2011) Polymorphism in Opto-Electronic Materials with a Benzothiazole-fluorene Core: A Consequence of High Conformational Flexibility of pi-Conjugated Backbone and Alkyl Side Chains. In: Crystal Growth & Design, 11 (5). pp. 1615-1622.

[img] PDF
Polymorphism.pdf - Published Version
Restricted to Registered users only

Download (4Mb) | Request a copy
[img] Other
cg101579f_si_001.cif - Published Version
Restricted to Registered users only

Download (49Kb) | Request a copy
[img] Other
cg101579f_si_002.cif - Published Version
Restricted to Registered users only

Download (33Kb) | Request a copy
[img] Other
cg101579f_si_003.cif - Published Version
Restricted to Registered users only

Download (61Kb) | Request a copy
[img] Other
cg101579f_si_004.cif - Published Version
Restricted to Registered users only

Download (35Kb) | Request a copy
[img] PDF
Supplemental.pdf - Published Version
Restricted to Registered users only

Download (77Kb) | Request a copy
[img] PDF
Supplemental_2.pdf - Published Version
Restricted to Registered users only

Download (52Kb) | Request a copy
[img] PDF
Supplemental_3.pdf - Published Version
Restricted to Registered users only

Download (58Kb) | Request a copy
[img] PDF
Supplemental_4.pdf - Published Version
Restricted to Registered users only

Download (44Kb) | Request a copy
[img] PDF
supplemental_5.pdf - Published Version
Restricted to Registered users only

Download (42Kb) | Request a copy
Official URL: http://pubs.acs.org/doi/abs/10.1021/cg101579f

Abstract

Fluorene and its derivatives are well-known organic semiconducting materials in the field of opto-electronic devices because of their charge transport properties. Three new organic semiconducting materials, namely, 2,2'-((9,9-butyl-9H-fluorene-2,7-diyl)bis(4,1 phenylene))bisbenzod]thiazole, C4; 2,2'-((octyl-9H-fluorene-2,7-diyl)bis(4,1 phenylene))bisbenzod]thiazole, C8; and 2,2'-((9,9-dodecayl-9H-fluorene-2,7-diyl)bis(4,1 phenylene))bisbenzod]thiazole, C12 with a benzothiazole-fluorene backbone, were synthesized and characterized for their photophysical properties. A phenomenon of concomitant polymorphism has been investigated in the first two derivatives (C4 and C8) and has been analyzed systematically in terms of the packing characteristics involving pi ... pi interactions. The conformational flexibility of the pi-conjugated 2,2'-(fluorene-2,7-diyl)bis(4,1 phenylene)bisbenzod]thiazole backbone coupled with orientational freedom of the terminal alkyl chains were found to be the key factors responsible for these polymorphic modifications. Attempts to grow suitable crystals for single crystal X-ray diffraction of compound C12 were unsuccessful.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Chemical Society.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 29 Jun 2011 09:44
Last Modified: 29 Jun 2011 09:44
URI: http://eprints.iisc.ernet.in/id/eprint/38638

Actions (login required)

View Item View Item