## Abstract ^1^H NMR spectra of the dipiperazineβbased DNA minor groove binding compound Hoechst 32985 indicate that at room temperature and low pH (2.90) a single conformation is detected. This is attributed to the form in which both piperazine rings are protonated at the __N__βmethyl and the bulk
Thermodynamics of several boron acid complexation reactions studied by variable-temperature 1H and 11B NMR spectroscopy
β Scribed by R.D. Pizer; P.J. Ricatto; C.A. Tihal
- Book ID
- 108428850
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 533 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0277-5387
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The temperature dependence of the line-shape of 1H MAS NMR spectra of H-mordenite and H-MCM-22 was examined. Upon raising the temperature of measurements stepwise from 298 to 503 K, the line-width of 1H MAS NMR of acidic protons in H-mordenite with SiO 2 /Al 2 O 3 ratio of 106 increased, went throug
The cis/trans conformational equilibrium of the two Ac-Pro isomers of the beta-turn model dipeptide [13C]-Ac-L-Pro-D-Ala-NHMe, 98% 13C enriched at the acetyl carbonyl atom, was investigated by the use of variable temperature gradient enhanced 1H-nmr, two-dimensional (2D) 1H,1H nuclear Overhauser eff