Table 3.

Physical properties of some polar aprotic solvents.

	Cyrene	NMP	DMSO	DMF	DMAc	Sulfolane
Dipolarity	0.93	0.90	1.00	0.88	0.85	0.96
δD/MPa0.5	18.8a	18.0	18.4	17.4	16.8	20.3
δP/MPa0.5	10.6a	12.3	16.4	13.7	11.5	18.2
δH/MPa0.5	6.9a	7.2	10.2	11.3	10.2	10.9
MP/°C	﹤-18	−24	18.6	−60.5	−20.1	28.4
BP/°C	203	202	189	153	165	282
ρ/g cm−1	1.25	1.03	1.10	0.94	0.94	1.26
Vm/cm3mol−1	102.5	96.5	-	77.0	-	-

^aCalculated with HSPiP software.