Dielectric relaxation studies of 1-nitropropane-dimethyl sulfoxide mixtures using a Time Domain Reflectometry

ABSTRACT

Complex dielectric measurements were performed in 1-nitropropane (NTP) and DMSO mixtures at various concentrations in the frequency range of 10 MHz to 50 GHz using time domain reflectometry technique. The excess inverse relaxation time values were found to be negative, indicating that the dipoles rotated more slowly. Alenka Luzar’s hydrogen-bonded theory is used to calculate theoretical estimates of the static dielectric constant. The variations in dielectric parameters such as dielectric constant, relaxation time, Kirkwood correlation factor and excess properties observed in the study confirm the existence of intermolecular interactions within the NTP-DMSO mixtures.

KEYWORDS:

• 1-nitropropane
• dielectric permittivity
• relaxation time
• hydrogen bonding model

Acknowledgments

The author of this work expresses sincere appreciation to the School of Physical Sciences, SRT Marathwada University in Nanded (MS) for providing laboratory facilities. Additionally, the author AD Bokhare would like to extend gratitude to the Chhatrapati Shahu Maharaj Research, Training, and Human Development Institute (SARTHI), Pune, for a fellowship (CSMNRF-2021). Author AD Bokhare also would like to thank the Director of the Government Vidarbha Institute of Science and Humanities in Amravati. It is acknowledged that the Department of Science and Technology (DST), New Delhi, India, provided financial assistance for this project (Project number: DST PROJECT- SB/S2/LOP-032/2013).

Disclosure statement

No potential conflict of interest was reported by the author(s).