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Numerical prefixes for multiplication of compound or complex (as in complicated) features are created by adding kis to the basic numerical prefix, with the exception of numbers 2 and 3, which are bis- and tris-, respectively.
The number of ligands coordinating is indicated by the prefixes di-, tri-, tetra- penta- etc. for simple ligands or bis-, tris-, tetrakis-, etc. for complex ligands. For example: For example: [CoCl(NH 3 ) 5 ]Cl 2 pentaamminechloridocobalt(3+) chloride where ammine (NH 3 )precedes chloride.
In Latin and Greek, the ordinal forms are also used for fractions for amounts higher than 2; only the fraction 1 / 2 has special forms. The same suffix may be used with more than one category of number, as for example the orginary numbers second ary and terti ary and the distributive numbers bi nary and ter nary .
Tris(dimethylamino)gallium dimer, formally bis(μ-dimethylamino)tetrakis(dimethylamino)digallium, is an amide complex of gallium. This compound may be used as a precursor to other gallium complexes. Commercially available, this compound may be prepared from lithium dimethylamide and gallium trichloride. [1]
Selenidostannates are chemical compounds which contain anionic units of selenium connected to tin.They can be considered as stannates where selenium substitutes for oxygen.
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W(PMe 3) 4 (η 2-CH 2 PMe 2)H was first synthesized in 1983 by reacting tungsten hexachloride with trimethylphosphine and sodium under a nitrogen atmosphere. [6] The complex was also a very minor product synthesized as a part of a reaction aimed at generating cyclopentadienyl- and PMe 3-containing tungsten complexes by co-condensing tungsten atoms, PMe 3, and cyclopentene at −196 °C. [7]
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