It was concluded that reactions of cupric ions to form complexes with adjacent hydroxyl groups on the cellulose molecule depended on an optimum spatial arrangement of the hydroxyl groups, that is, distance between the groups. Evidently, wetting of cotton cellulosic fibers with solutions of strong ...
Chang FC, Swenson RP (1997) Regulation of oxidation−reduction potentials through redox-linked ionization in the Y98H mutant of theDesulfovibrio vulgaris[Hildenborough] flavodoxin: direct proton nuclear magnetic resonance spectroscopic evidence for the redox-dependent shift in the pKaof histidine-98. B...
arrangement 原子排列 atomic battery 原子电池 atomic beam 原子束 atomic bomb 原子弹 atomic bond 原子键 atomic charge 原子电荷 atomic clock 原子钟 atomic core 原子核 atomic dispersion 原子分散 atomic energy 原子能 atomic fluorescence spectrometry 原子荧光光谱法 atomic form factor 原子散射因子 atomic ...
Therefore, if they are made directly in contact with microbes, as in the case of a typical biochemical arrangement, the uptake of CO2 may not be preferred due to different kinetic resistances as discussed in section 4 [65]. Another aspect regarding acetate and methanol is that their ...
This implies that potentially new mechanisms are relevant in liquid HHG and that the structural arrangement of the liquid (that is, the lack of long-range order) might play a crucial role in the dynamics. We investigate this experimental result with a combination of newly developed ab-initio ...
(B) Schematic arrangement of the symmetric branches of the bacteriochlorophyll (P and B), bacteriopheophytin (H), and quinone (Q) cofactors. The two branches, usually called A and B, are depicted as the subscripts. The asymmetric electron transfer reactions and their lifetimes are also shown....
of SOM ZIF-67 with the oriented arrangement of ordered macropores (Fig.1band Supplementary Fig.6). The high magnification FESEM, TEM and the high-angle annular dark-field scanning TEM (HAADF-STEM) images clearly show that the tetrakaidekahedron particles consist of nanosheets, which are ...
Calculations have been carried out on the low-lying excited states of ethylene, with a view of determining whether there appears a pyramidal arrangement of the bonds around each carbon atom, in addition to the twisting of the two CH2 gro... L Burnelle,C Litt - 《Molecular Physics》 被引量...
3.The method of claim 2, wherein the electron back-donating material comprises, carbonyl (CO), ammonia (NH3), ethylene diamine (C2H8N2), nitric oxide (NO), nitrogen dioxide (NO2), an NO3ligand, an amine, an amide or an alkylamide, cyano (CN−), phen(1,10-phenanthroline) (C12...
hydrogen chloride. First, thevalenceelectrons that are available for bonding are counted (2 × 1 + 6 = 8 in H2O, for example, and 4 + 4 × 7 = 32 incarbon tetrachloride, CCl4), and the chemical symbols for the elements are placed in the arrangement that reflects which are neighbours:...