the formyl group was reduced to a hydroxymethyl group during extraction with methanol containing NaBH4: chlorophyll a remained unchanged during this rapid reductive extraction process, Mass spectra of chlorophyll a and 17-hydroxymethyll-chlorophyll b extracted from leaves greened in the presence of eithe...
From a fundamental point of view, hydrogen has a unique chemistry, in view of its small mass, the presence of a single 1 s valence orbital, the absence of core and non-bonding electrons, and an anomalously high electronegativity [4]. These factors contribute to the versatility of the M...
Acceptorless dehydrogenative coupling of alcohols catalysed by ruthenium PNP complexes: influence of catalyst structure and of hydrogen mass transfer. J. Catal. 340, 331–343 (2016). Article CAS Google Scholar Qu, S. et al. Computational mechanistic study of Fe-catalyzed hydrogenation of esters ...
General equations for the masses of anhydrides for stoichiometric glutarylation/propionylation are given here: Mass of Glutaric Anhydride (GA) required=Desired GA Fraction×Mass Chitosan×Amino Content×114.1*/161** *F.W. (GA) **161=F.W. repeating unit of Chitosan Mass of Propionic ...
also tried in the synthesis of Ag14nanocluster. The TMEDA can also work as triethylamine, whereas the NaOH is not the case; this is probably due to the slower reduction kinetics of NaBH4in NaOH, which impedes the formation of Ag14nanocluster. The growth of large-sized single crystals of ...
The open reading frame encodes a predicted polypeptide of 678 amino acids with a calculated isoelectric point of 8.5 and a molecular mass of 74 kDa, which is in reasonable agreement with the value of 70 kDa estimated by SDS-PAGE and Western blotting using an anti-Aralar-specific antibody (...
Explain how adding a solute affects the vapor pressure of the solvent. What effect does increasing molecular mass have on the properties of a polymer? What is the use of carbon dioxide? Explain with an example. Explain why tetrahydrofuran has ...
K1=(PH)/(PC) and Klin=(PT)/(PC)(T), where PCand PHare, respectively, the coil and partially hybridized forms of the CxP probe (i.e., before target binding), and where PT is the probe-target complex. Making use of mass balance, these equations are easily solved to give fB, the...
the origin of the 7-formyl-group oxygen of chlorophyll b in higher plants was determined by greening etiolated maize leaves, excised from dark-grown plants, by illumination under white light in the presence of either H218O or 18O2 and examining the newly synthesized chlorophylls by mass spectr...
the formyl group was reduced to a hydroxymethyl group during extraction with methanol containing NaBH4: chlorophyll a remained unchanged during this rapid reductive extraction process, Mass spectra of chlorophyll a and 17-hydroxymethyll-chlorophyll b extracted from leaves greened in the presence of eithe...