Sudden changes in the energy spectra are observed for Ni, Co, and W in the presence of oxygen, apparently corresponding to incorporation of oxygen into the surface lattice. The energy spectra are therefore very sensitive to changes in the surface, and should be very useful in oxidation or ...
The energy spectra of secondary neutrons produced when bremsstrahlung of end-point energy in the range 10-30 MeV is incident on oxygen, carbon and nitrogen have been calculated. Photonuclear reactions of the type (gamma, n) and (gamma, pn)( have been included. The respective contributions of...
Proline is a unique amino acid in that its side group is attached to its backbone atoms in two places: the chiral carbon and the amino nitrogen. This renders proline a rigid amino acid. As such, it is not often found in α-helices but is found in β-turns. There are two differe...
Interestingly, amide-II IR peaks of silk have only rarely been discussed in the literature49,50. The commonly accepted vibration mode associated with the amide-II peak is shown in Fig. 3a/b/d, essentially a stretch of the bond between the carbonyl carbon (gray) and the nitrogen (green) ...
Secondary Succession and the Pattern of Plant Dominance Along Experimental Nitrogen Gradients In 1982, experimental nitrogen gradients were established on both existing and disturbed (disked) vegetation in three fields (abandoned 14, 25, and 48 yr) ... D Tilman - 《Ecological Monographs》 被引量:...
Dual-function enzyme catalysis for enantioselective carbon–nitrogen bond formation Article 18 October 2021 Data availability All data necessary to support the paper’s conclusions are available in the main text and the Supplementary Information. Solid-state structures of 2a, 4a, 5a and 5f are ava...
laid on the use of fast atoms (argon) instead of ions asenergeticbombarding particles and the term ‘fast atom bombardment’ was introduced to describe the new technique. However, similar spectra to those obtained using a fast neutral atom beam were achieved with better sensitivity usingcaesiumor...
A theoretical study of the effect of phosphorus and nitrogen heteroatoms on pentahapto coordination of diazaphospholyl ligands in binuclear ruthenium and iron carbonyl derivatives Journal of Organometallic Chemistry, Volume 1004, 2024, Article 122949 Theodor Dănescu,…, R. Bruce King Synthesis, struct...
Nitrogen (N) is a main nutrient required for tree growth and biomass accumulation. In this study, we analyzed the effects of contrasting nitrogen fertilization treatments on the phenotypes of fast growing Eucalyptus hybrids (E. urophylla x E. grandis) wi
IR spectra were recorded on and reported in wavenumbers (cms−1). General Procedures (GP) GP-1: Debenzylation of Amino Ester Benzyl protected amino acid ester (1.0 mmol) was dissolved in methanol (0.5 mL), treated with 10% Pd—C (0.1 gm for 1.0 g) and stirred at room temperature ...