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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 the following prefixes, a final vowel is normally dropped before a root that begins with a vowel, with the exceptions of bi-, which is extended to bis-before a vowel; among the other monosyllables, du-, di-, dvi-, and tri-, never vary.
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]
The [BAr F 4] − anion with four fluorinated aryl groups distributed tetrahedrally about a central boron atom. Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate is an anion with chemical formula [{3,5-(CF 3) 2 C 6 H 3} 4 B] −, which is commonly abbreviated as [BAr F 4] −, indicating the presence of fluorinated aryl (Ar F) groups.
Tetrakis(trimethylphosphine)tungsten(II) trimethylphospinate hydride (W(PMe 3) 4 (η 2-CH 2 PMe 2)H) is an air-sensitive organotungsten complex with tungsten in the oxidation state of +2. It is an electron-rich tungsten center is and, thus, prone to oxidation . [ 1 ]
Commonly, metal dithiocarbamates are prepared by salt metathesis reactions using alkali metal dithiocarbamates: . NiCl 2 + 2 NaS 2 CNMe 2 → Ni(S 2 CNMe 2) 2 + 2 NaCl. In some cases, the dithiocarbamate serves as a reductant, followed by its complexation.
Pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) is a chemical compound composed of four sterically hindered phenols linked through a pentaerythritol core. It is used as primary antioxidant for stabilizing polymers , particularly polyethylene and polypropylene .