Journal
CRYSTAL GROWTH & DESIGN
Volume 14, Issue 2, Pages 459-466Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cg401069y
Keywords
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Funding
- DST [SR/S3/ME/025/2008]
- KRCF (Korea Research Council of Fundamental Science Technology)
- KIST (Korea Institute of Science Technology)
- DST, India
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A novel thiophene derivative 7,9-di(thiophen-2-yl)-8H-cyclopenta[a]acenaphthylen-8-one (DTCPA) is shown to exhibit high electrical conductivity (1.97 x 10(-2) +/- 0.0018 S/cm at RT) in the crystalline state. The material shows two orders of increase in conductivity from normal solid to single crystalline state. The crystal structure has S center dot center dot center dot S chalcogen bonding, C-H center dot center dot center dot O hydrogen bonding, and pi center dot center dot center dot pi stacking as the major intermolecular interactions. The nature and strength of the S center dot center dot center dot S interactions in this structure have been evaluated by theoretical charge density analysis, and its contribution to the crystal packing quantified by Hirshfeld surface analysis. Further, thermal and morphological characterizations have been carried out, and the second harmonic generation (SHG) efficiency has been measured using the Kurtz-Perry method.
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