Based on the molecular polarizability effect index,a formula of three parameters was proposed to calculate the boiling point of aliphatic aldehydes and alkanones.ln（820.5-Tb）=6.38330-1.37357×10-1Nc+5.39350ΔE...Based on the molecular polarizability effect index,a formula of three parameters was proposed to calculate the boiling point of aliphatic aldehydes and alkanones.ln（820.5-Tb）=6.38330-1.37357×10-1Nc+5.39350ΔEPI+8.02603×10-2NWhere the Nc is the effective length of carbon chain of alkyl group in the aliphatic aldehydes and alkanones.The ΔPEI is the polarizability effect index difference between the corresponding branched and normal alkyl isomer containing the same carbon atom number,which expressed the effcet of carbonyl group on the boiling point of ali-phatic aldehydes and alkanones.N is the carbon numbers of aliphatic aldehydes and alkanones.展开更多
文摘Based on the molecular polarizability effect index,a formula of three parameters was proposed to calculate the boiling point of aliphatic aldehydes and alkanones.ln（820.5-Tb）=6.38330-1.37357×10-1Nc+5.39350ΔEPI+8.02603×10-2NWhere the Nc is the effective length of carbon chain of alkyl group in the aliphatic aldehydes and alkanones.The ΔPEI is the polarizability effect index difference between the corresponding branched and normal alkyl isomer containing the same carbon atom number,which expressed the effcet of carbonyl group on the boiling point of ali-phatic aldehydes and alkanones.N is the carbon numbers of aliphatic aldehydes and alkanones.
