Organo elemental phosphorus

Some oxygen-containing heteroelement compounds, in which other elements are not coordinatively active, could be attributed to O-ligands. This group includes in particular nitrogen, phosphorus, arsenic, and antimony organo-oxides [1,3,11,112], The most studies amongst them are phosphine oxides, on whose basis complexes, with structure 295, of practically all metals have been obtained [1, vol.2 3] ... 

Phosphorus trichloride, stannous chloride, and mercuric iodide give products of the type RHgX with mercury dimethyl, but cadmium iodide does not yield the above type, and antimony trichloride yields an organometallic eoznpound. Mercury diethyd reacts with the trichlorides of phosphorus, arsenic, and antimony to yield organo derivatives of these elements, aird with mercuric chloride it gives ethyl mercuric chloride. 

It will be seen that a number of tlie reactions afford means of obtaining organo-tballium derivatives. In the case of organo compounds of the elements of Group V., it may be stated that phosphorus and antimony chlorides yield no organo-thallium derivatives, whereas arsenic and bismuth chlorides are capable of yielding eompoimds of the type... 

Furukawa, N. Creation of organo-sulfur, -selenium- and - tellurium multi-cation species. Phosphorus, Sulfur and Silicon and the Related Elements 199B, 136,137 138, 43-58. 

For more than a decade potential environmental problems associated with organo-bromine flame retardant systems have motivated the search for non-halogen-based approaches to reduce polymer flammability. Initially, research focused on development of new phosphorus-based flame retardants, and numerous publications and patents have been issued in this area. Similarly motivated research has also produced nonhalogen flame retardant approaches based on other elements, such as boron and sihcon. At the same time, work on the use of additives, or flllers, with nanometer-scale primary particle sizes, produced polymer nanocomposites. These materials exhibit enhancement in a variety of physical properties at one-tenth the loading required when micrometer-size additives are used. ... 

Some oils are formulated with organo-metallic additives which act as detergents, antioxidants, antiwear agents, and so forth. Some of these additives contain one or more of these elements barium, calcium, phosphorus, sulfur, and zinc. These test methods provide a means of determining the concentration of these elements which in turn provides an indication of the additive content of these oils. 

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