✍ Scribed by Predrag Ilich; Nenad Juranić
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract **__Ab initio__** calculations have been performed to obtain structures and coupling constants ^1^__J__(NH), ^1h^__J__(HN), and ^2h^__J__(NN) for models of proton sponges with symmetric and asymmetric NH^+^N intramolecular hydrogen bonds (IMHBs). For a given model, the asymmetric s
Four simple and sensitive HNCO-based methods for measurement of 1J(C'Calpha), 1J(NCalpha) and 2J(NCalpha) coupling constants in protein main chains are presented. Three of these experiments enable the simultaneous measurement of 1J(C'Calpha), 1J(NCalpha) and 2J(NCalpha) couplings. Exploitation of th
The two-bond "N,H coupling constant in 3,5dimethylpyridine was determined in 30 solvents and shown to vary between -11 and -3 Hz. An increasing ability of the solvent to form hydrogen bonds causes a steady decrease in I \*J("N,H) I , which is also observed with some selected pyridine derivatives wit
## Abstract The modification of the ^13^C spin–lattice relaxation time values for the C atoms in the side‐chain of 4‐(morpholinoethyl)‐1,2,4‐triazole has been found to be characteristic of the structure variation caused by different solvents, and evidence for the formation of an intramolecular hydr
## Abstract The first successful observation of the vicinal ^15^N,^13^C spin‐coupling constants in a series of amino acids, comprising Val, Ile, Leu and Thr, in which the α‐nitrogens are fully replaced with ^15^N, is described. A Karplus‐type dihedral‐angle dependence was noted for the coupling con