Substituted phenylarsonic acids; structures and spectroscopy
Full NMR and ESI-MS spectra, and differential scanning calorimeter data are presented for 15 substituted phenylarsonic acids, including two new fluoro-substituted examples. X-ray crystal structure determinations of five examples (phenylarsonic acid and the 4-fluoro-, 4-fluoro-3-nitro-, 3-amino-4-hydroxy- and 3-amino-4-methoxy-substituted derivatives) were determined and the H-bonding crystal-packing patterns analysed.
Lloyd, Nicholas C.,Morgan, Hugh W.,Nicholson, Brian K.,Ronimus, Ron S.
p. 2443 - 2450
(2008/09/20)
Process for formulating a synthetic drug for use in animal feed, and resulting formulation
A method of formulating a synthetic drug for use in animal feed, for the purpose of reducing carry-over of the synthetic drug to subsequent lots of animal feed in the feed mill.
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(2008/06/13)
SYNTHESIS AND PROPERTIES OF ARYLTETRACHLOROARSORANES
Arylazoarenethiosulfonates were obtained, and their structures and chemical characteristics were studied.It was shown that arylazoarenethiosulfonates have a nonionic structure, and this explains their high stability.It was established that they enter with difficulty into reactions with the release of nitrogen, but they enter readily into azo-coupling and reduction reactions.
Boldyrev, B. G.,Grivnak, L. M.
p. 324 - 330
(2007/10/02)
SYNTHESIS AND PROPERTIES OF ARYLARSONIC ACIDS
1.A number of arylarsonic acids with various substituents in the ortho, meta, and para positions in the benzene ring were synthesized from diazonium salts by the Bart reaction; the products were characterized by their IR spectra. 2.By the DTA method it was established that arylarsonic acid molecules were linked together through hydrogen bonds to form oligomeric associated forms. 3.The IR spectra of arylarsonic acids confirm the presence in them of strong hydrogen bonds through which they are able to undergo association into two forms differing in the symmetry of the d isposition of the As=O bonds.A form which gives a C band arises if the arsonyl oxygen participates in the formation of two hydrogen bonds simultaneously, as a result of which the molecules are linked together to form endless chains and columns.In the other form there are probably cyclic dimers with intermolecular H bonds.
Yambushev, F. D.,Kovyrzina, V>,P.,Shagidullin, R. R.,Gorchakova, L. A.,Fedotov, B. G.,et al.