Pramana | |
Dielectric behaviour of some amides and formamides dissolved in nonpolar solvents under static electric ï¬eld | |
S Sahoo1  S K Sit22  | |
[1] Department of Electronics & Instrumentation Engineering, Dr Meghnad Saha Institute of Technology, P.O. Debhog, Haldia, Purba Medinipur 721 657, India$$;Department of Physics, Dr Meghnad Saha Institute of Technology, P.O. Debhog, Haldia, Purba Medinipur 721 657, India$$ | |
关键词: Dielectric behaviour; dipole moment; monomer; dimer.; | |
DOI : | |
学科分类:物理(综合) | |
来源: Indian Academy of Sciences | |
【 摘 要 】
Structural and associational aspects of polar amides (ð‘—) like formamide, acetamide, Nmethyl acetamide (NMA), N,N-dimethyl formamide (DMF), N,N-dimethyl acetamide (DMA) and acetanilide dissolved in the nonpolar solvent (ð‘–) benzene or 1,4-dioxan have been estimated from the measured static relative permittivity ðœ€0ð‘–ð‘— and high-frequency permittivity ðœ€âˆž ð‘–ð‘— at different weight fractions ð‘¤ð‘—s of polar solute at 35°C under static electric ï¬eld using Debye model of polar liquid molecule. The static dipole moments ðœ‡ð‘ s are compared with ðœ‡ð‘—s reported from conductivity method and theoretical ðœ‡theos to get exact ðœ‡cal $cdot$ ðœ‡theos of the molecules are predicted from the available bond angles and bond moments where difference in electron afï¬nity exists between two adjacent atoms of a polar group due to inductive, mesomeric and electromeric effects in them. Solute–solute molecular association for NMA in benzene and solute–solvent association for other amides are ascertained to arrive at their conformational structures.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912040498317ZK.pdf | 229KB | download |