- Tytuł:
- Association of model peptides and dehydropeptides: N-acetyl-l-butyrine and (Z)-dehydrobutyrine N',N'-dimethylamides
- Autorzy:
-
Broda, Małgorzata
Rzeszotarska, Barbara - Powiązania:
- https://bibliotekanauki.pl/articles/1041295.pdf
- Data publikacji:
- 2006
- Wydawca:
- Polskie Towarzystwo Biochemiczne
- Tematy:
-
ab initio/DFT calculations
hydrogen bonds
dimer
IR spectra
α,β-dehydroamino acids - Opis:
- These comparative studies on the aggregation behaviour of Ac-(Z)-ΔAbu-NMe2 and Ac-L-Abu-NMe2 in carbon tetrachloride were performed by the analysis of their FTIR spectra and by theoretical calculations. The percentage of the monomeric form (α) decreased as concentration increased and this occurred to a higher degree for the (Z)-ΔAbu derivative than for its saturated analogue. The dimerization constant KD, calculated on the basis of the intensity of the monomer and associate bands in the νs(N-H) vibration region, is by three orders of magnitude larger for Ac-(Z)-ΔAbu-NMe2 than for Ac-L-Abu-NMe2. The obtained dimer geometries of the dehydro- compound were calculated by the B3LYP/6-31+G** method.
- Źródło:
-
Acta Biochimica Polonica; 2006, 53, 1; 221-226
0001-527X - Pojawia się w:
- Acta Biochimica Polonica
- Dostawca treści:
- Biblioteka Nauki
Artykuł