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Browsing by Author "Shinto Varghese"

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Butadiene-based photoresponsive soft materials

Suresh Das; Shinto Varghese; Saleesh Kumar, N S (American Chemical Society, 2010)

The creation of stimuli-responsive materials offers considerable challenges in the area of material science. The use of light as all external stimulus has particular advantages because it can bring about rapid transformations ...
Correlation between solid-state photophysical properties and molecular packing in a series of Indane-1,3-dione containing butadiene derivatives

Saleesh Kumar, N S; Shinto Varghese; Suresh, C H; Rath, N P; Suresh Das (American Chemical Society, 2009)

The solid-state photophysical and photochromic properties and the molecular packing in single crystals of a series of donor-acceptor-substituted butadiene derivatives with alkoxy groups as donor and indane-1,3-dione as ...
Exploring self - assembled stilbenoid architectures in the pathway from molecules to materials

Shinto Varghese (Photosciences and Photonics Section, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology(CSIR), Thiruvananthapuram., 2010)
Formation of highly luminescent supramolecular architectures possessing columnar order from octupolar oxadiazole derivatives: Hierarchical self-assembly from nanospheres to fibrous gels

Shinto Varghese; Saleesh Kumar, N S; Anjali Krishna; Shankar Rao, D S; Prasad, S K; Suresh Das (Wiley, 2009)

The synthesis and study of the liquid crystalline, photophysical, and aggregation behavior of novel octupolar oxadiazole derivatives are reported. These molecules formed columnar mesophases at elevated temperatures Which ...
Photoresponsive soft materials: Synthesis and photophysical studies of a stilbene-based diblock copolymer

Sajith Menon; Remyamol, T; Shinto Varghese; Suresh Das (Wiley, 2011)

An amphiphilic diblock copolymer composed of a photoresponsive dialkoxycyanostilbene polymethacrylate and poly(ethylene oxide) (PDACS-b-PEO) was synthesized and its photophysical and aggregation properties were investigated. ...
Role of molecular packing in determining solid-state optical properties of pi-conjugated materials

Shinto Varghese; Suresh Das (American Chemical Society, 2011)

The optical properties of pi-conjugated organic molecules in their solid state are critically important in determining performance efficiencies of optoelectronic devices such as organic light-emitting diodes and organic ...
Solid state optical properties of 4-alkoxy-pyridine butadiene derivatives: Reversible thermal switching of luminescence

Saleesh Kumar, N S; Shinto Varghese; Rath, N P; Suresh Das (American Chemical Society, 2008)

The synthesis and optical properties of a series of alkoxyphenyl-pyridyl butadiene derivatives in solution and in the solid state are described. All the derivatives were practically nonfluorescent in solution but showed ...
Supergelation via purely aromatic pi-pi driven self-assembly of pseudodiscotic oxadiazole mesogens

Aneesh, P S; Saleesh Kumar, N S; Prabhu, D D; Shinto Varghese; Krishna Prasad, S; Shankar Rao, D S; Suresh Das (American Chemical Society, 2014)

A series of highly luminescent oxadiazole-based stilbene molecules (OXD4, OXD8, OXD10, and OXD12) exhibiting interesting enantiotropic liquid crystalline and gelation properties have been synthesized and characterized. The ...
Trigonal 1,3,4-Oxadiazole-based blue emitting liquid crystals and gels

Prabhu, D D; Saleesh Kumar, N S; Aneesh, P S; Shinto Varghese; Suresh Das (American Chemical Society, 2012-11-01)

Star-shaped molecules consisting of a 1,3,4-oxadiazole core derivatized with alkoxy-substituted phenyl ethynylenes, FD12 (dodecyl) and FD16 (hexadecyl) were synthesized. These molecules exhibited enantiotropic columnar ...

Now showing items 1-9 of 9

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