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Physical and Donor–Acceptor Properties of 3-Propyl-4-ethylsydnone
Physical and Donor–Acceptor Properties of 3-Propyl-4-ethylsydnone
- Source :
- Bulletin of the Chemical Society of Japan. 70:315-320
- Publication Year :
- 1997
- Publisher :
- The Chemical Society of Japan, 1997.
-
Abstract
- The physical properties of 3-propyl-4-ethylsydnone at various temperatures were investigated by dielectric constant (e), refractive index (nD), density (ρ), and viscosity (η) measurements. The dielectric constant of 3-propyl-4-ethylsydnone was very high compared with those of many organic solvents. For example, it was found to be 64.6 at 25 °C, close to that of propylene carbonate (64.9), a typical nonaqueous polar solvent with a high dielectric constant. The refractive index and density for 3-propyl-4-ethylsydnone decreased linearly with increasing temperature. The viscosity of 3-propyl-4-ethylsydnone at 25 °C was 11.2 cP (1 cP = 10−3 N s m−2). This was larger than those of many organic solvents and close to that of phenol (11.6 cP at 20 °C). From a line for log η vs. 1/T, the activation energy (Eη) for the viscosity of 3-propyl-4-ethylsydnone was found to be 29.7 kJ mol−1. The estimation of donor (DN) and acceptor (AN) numbers for 3-propyl-4-ethylsydnone were also done from 29Si and 13C NMR spectroscopi...
Details
- ISSN :
- 13480634 and 00092673
- Volume :
- 70
- Database :
- OpenAIRE
- Journal :
- Bulletin of the Chemical Society of Japan
- Accession number :
- edsair.doi...........6926fbbdc760f1a86ec204dc0103f4d8
- Full Text :
- https://doi.org/10.1246/bcsj.70.315