منابع مشابه
Bis-(benzothiazol-2-yl)-amines and their metal amides: a structural comparison in the solid state.
Within this work, the field of amide ligand platforms for group 13 metal complexation, especially for Al(iii) is investigated in a synthetic as well as in a structural comparative approach. Starting from bis-heterocyclo methanides, which mimic the omnipresent nacnac ligand, the next enhancement in this class of ligands includes the exchange of the central methylene bridge by an amine nitrogen a...
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The effect of Solid State Fermentation (SSF) on Chitosan production by A. niger was investigated. A. niger BBRC 20004 from Biochemical and Bioenvironmental Research Centre of Sharif University of Technology (Tehran, Iran), was grown on corn residue. Chitosan was extracted from the fungal mycelia using hot alkaline and acid treatment. A. niger was incubated for 12 days on corn residue with moist...
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The synthesis of calcium tetraborate was investigated in a temperature ranging from 800℃ to 900℃ using the solid-state reaction method. The synthesis was done using ammonium tetraborate tetrahydrate as the source of boron. At temperatures of 800 ℃ and 880 ℃, the mixed phases from different compounds were formed. At the optimum temperature of 840℃, the mixed phase was only composed of meta and t...
متن کاملPhotolysis of methylcobalamin. Nature of the reactive excited state
Photolysis of methylcobalamin (Co”‘corrin(CH,)L + Hz0 + Oz + Co”‘(H,O)L + H,CO + OH-) shows a pronounced wavelength dependence. It is suggested that the reactive excited state is of the ligand-to-ligand charge transfer (LLCT) type and involves the promotion of an electron from the Co-C u-bond to a r*(corrin) orbital. This LLCT transition mixes with the 7;z-*(corrin) transitions. Owing to this L...
متن کاملA Solid State Accelerator
We present a solid state accelerator concept utilizing particle acceleration along crystal channels by longitudinal electron plasma waves in a metal. Acceleration gradients of order 100 GV/cm are theoretically possible, but channeling radiation limits the maximum attainable energy to lo5 TeV for protons. Beam dechanneling due to multiple scattering is substantially reduced by the high accelerat...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1971
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.74.10_2053