Gutmann Acceptor and Donor number

The Gutmann Acceptor (AN) and Donor number (DN) are measures of the strength of solvents as Lewis acids or bases. The Acceptor Number is based on the 31P-NMR chemical shift of triethylphosphine oxide in the solvent. The Donor Number is based on the heat of reaction between the 'solvent' and SbCl5 in CH2ClCH2Cl .

NameFormulaANDN
1,2-diaminoethaneC2H8N220.955
1,2-dichloroethaneC2H4Cl216.70
1,2-dimethoxyethaneC4H10O210.220
2-methyl-2-propanolC4H10O27.121.9
2-phenylethanolC8H10O33.823
2-propanolC3H8O33.821.1
2-propanoneC3H6O12.517
4-methyl-2-oxo-1,3-dioxolaneC4H6O318.315.1
acetic acidC2H4O252.920
acetonitrileC2H3N18.914.1
benzeneC6H68.20.1
benzonitrileC7H5N15.511.9
benzyl alcoholC7H8O36.823
butanolC4H10O36.819.5
dichloromethaneCH2Cl220.41
diethyl etherC4H10O3.919.2
diethylamineC4H11N9.450
dimethyl sulfoxideC2H6OS19.329.8
dioxaneC4H8O210.314.3
ethanolC2H6O37.919.2
ethyl acetateC4H8O29.317.1
formamideCH3NO39.824
formic acidCH2O283.619
heptaneC7H1600
hexamethylphosphoramideC6H18N3OP10.638.8
hexaneC6H1400
methanolCH4O41.519
methyl acetateC3H6O210.716.3
N,N,N',N'-tetramethylureaC5H12N2O9.231
N,N-diethylacetamideC6H13NO13.632.2
N,N-dimethylacetamideC4H9NO13.627.8
N,N-dimethylformamideC3H7NO1626.6
N-methylformamideC2H5NO32.127
N-methylpyrrolidonC5H9NO13.327.3
nitrobenzeneC6H5NO214.84.4
nitromethaneCH3NO220.52.7
oxolan-2-oneC4H6O217.318
propanolC3H8O37.319.8
pyridineC5H5N14.233.1
sulfolaneC4H8O2S19.214.8
tetrachloromethaneCCl48.60
tetrahydrofuranC4H8O820
tributyl phosphateC12H27O4P9.923.7
trichloromethaneCHCl323.14
triethylamineC6H15N1.461
trimethyl phosphateC3H9O4P16.323
waterH2O54.818