Standard molar enthalpies of formation of crystalline stereoisomers of aldono-1,4-lactones

Add time:09/27/2019    Source:sciencedirect.com

The standard (p∘ = 0.1 MPa) molar energies of combustion in oxygen, at T = 298.15 K, for crystalline d-,l-galactono-1,4-lactone, d-,l-gulono-1,4-lactone and l-mannono-1,4-lactone were measured by static-bomb calorimetry, by using paraffin oil as auxiliary substance and leading to the following results: d-galactono-1,4-lactonel-galactono-1,4-lactoned-gulono-1,4-lactonel-gulono-1,4-lactonel-mannono-1,4-lactoneΔcUm∘(cr,298.15K)/(kJ·mol-1)−2559.09 ± 0.47−2559.66 ± 0.48−2561.32 ± 0.51−2560.91 ± 0.48−2563.43 ± 0.37ΔcHm∘(cr,298.15K)/(kJ·mol-1)−2557.85 ± 0.47−2558.42 ± 0.48−2560.08 ± 0.51−2559.67 ± 0.75−2562.19 ± 0.37ΔfHm∘(cr,298.15K)/(kJ·mol-1)−1232.36 ± 0.65−1231.79 ± 0.65−1230.13 ± 0.65−1230.54 ± 0.62−1228.02 ± 0.65ΔfusH(Tfus)/(kJ · mol−1)35.77 ± 0.3235.98 ± 0.0640.13 ± 0.6041.50 ± 0.3636.13 ± 0.20Tfus/K410.32 ± 0.03409.82 ± 0.03459.30 ± 0.23458.96 ± 0.05426.52 ± 0.06

We also recommend Trading Suppliers and Manufacturers of L-GALACTONO-1,4-LACTONE (cas 1668-08-2). Pls Click Website Link as below: cas 1668-08-2 suppliers

Prev:Functional assignment of Glu386 and Arg388 in the active site of l-galactono-γ-lactone dehydrogenase
Next:Conformationally constrained analogues of diacylglycerol. 5. 2,5-Dideoxy-3-O-tetradecanoyl-D-galactono-1,4-lactone: A superior homologue of 3-O-tetradecanoyl-2-deoxy-L-ribonolactone with PK-C binding affinity.☆)