Organic arsenicals sulphur compounds

The chemistry of sulphonic acids, esters and their derivatives The chemistry of alkanes and cycloalkanes Supplement S The chemistry of sulphur-containing functional groups The chemistry of organic arsenic, antimony and bismuth compounds The chemistry of enamines (2 parts)... 

Optical activity was first observed with organic compounds having one or more chiral carbon atoms (or centres) (i.e. a carbon substituted with four different groups). In the structures (1) to (17) the chiral carbons are specified with an asterisk. Subsequently compounds having chiral centres at suitably substituted heteroatoms (e.g. silicon, germanium, nitrogen, phosphorus, arsenic, sulphur, etc.) were also synthesised. Molecular dissymmetry, and hence chirality, also... 

In addition to complex halides and cyanides, the metals form many ammines. Organic compounds of nitrogen, arsenic, sulphur, selenium and tellurium arc other possible ligands. Many complexes with bidentate ligands are known. The various types of isomerism are common thus Pd(NH3)2Cl2 occurs as the pink [Pd (NH3)4] [PdCy and as the yellow cis and trans isomers ... 

In saline sediments aliphatic and polyaromatic hydrocarbons carbohydrates haloaromatic compounds chlorophenols basic nitrogen compounds various organosulphur compounds mixtures of organic compounds total sulphur arsenic and organic compounds of lead, mercury and tin. ... 

According to C. F. Barwald and A. Monheim (1835), the decomposition is accelerated by the presence of organic substances. J. Milbauer tried the effect of thirty-two metal chlorides of sodium tungstate and molybdate of uranyl sulphate and of sulphuric, selenic, arsenic, and boric acids on the photo-decomposition of chlorine water, and found. that none accelerated but that most retarded the action. Chlorine catalyzes the decomposition of bromine water and bromine, chlorine water while iodine does not accelerate, but rather retards the reaction, probably by forming relatively stable iodine compounds. A. Bcnrath and H. Tuchel found the temp, coeff. of the velocity of the reaction with chlorine water between 5° and 30° increases in the ratio 1 1 395 per 10°. 

Metallic Radicles.—The organic matter in the compound is destroyed either (a) by heating to redness for some time in contact with air in a quartz or porcelain crucible, or (b by oxidising with a mixture of cone, nitric and sulphuric acids. After decomposition is complete, the residue is examined by the usual tests for inorganic radicles. In (a) volatile radicles such as mercury, arsenic and ammonium will be lost. 

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