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Typical nitrile ligands are acetonitrile, propionitrile, and benzonitrile.The structures of [Ru(NH 3) 5 (NCPh)] n+ have been determined for the 2+ and 3+ oxidation states. Upon oxidation the Ru-NH 3 distances contract and the Ru-NCPh distances elongate, consistent with amines serving as pure-sigma donor ligands and nitriles functioning as pi-acceptors.
Molybdenum is an essential element in most organisms; a 2008 research paper speculated that a scarcity of molybdenum in the Earth's early oceans may have strongly influenced the evolution of eukaryotic life (which includes all plants and animals). [1] At least 50 molybdenum-containing enzymes have been identified, mostly in bacteria.
Samarium(III) molybdate can be obtained by reacting samarium(III) nitrate and sodium molybdate in the pH range of 5.5~6.0. [2] Its single crystal can be grown at 1085 °C by the Czochralski method. [3] Samarium(III) molybdate can also be prepared by reacting samarium and molybdenum(VI) oxide:
Aldrichimica Acta is a scientific journal published by Sigma-Aldrich. Established in 1968 in Milwaukee, Wi, Aldrichimica Acta publishes reviews in the field of synthetic organic chemistry, with each issue focusing on a special topic. The journal is open access. In 2015, the Acta was ranked #1 among journals in the field of organic chemistry by ...
Ytterbium(III) nitrate is the nitrate of ytterbium in the +3 oxidation state. [10] The compound forms colorless crystals, dissolves in water, and also forms crystalline hydrates. [11] [12] It can be obtained by reacting ytterbium and nitric oxide in ethyl acetate: Yb + 3 N 2 O 4 → Yb(NO 3) 3 + 3 H 2 O
Molybdenum hexacarbonyl (also called molybdenum carbonyl) is the chemical compound with the formula Mo(CO) 6. This colorless solid, like its chromium , tungsten , and seaborgium analogues, is noteworthy as a volatile, air-stable derivative of a metal in its zero oxidation state.
Keggin structure James F. Keggin, the discoverer of the Keggin Structure. Keggin structure. The Keggin structure is the best known structural form for heteropoly acids.It is the structural form of α-Keggin anions, which have a general formula of [XM 12 O 40] n −, where X is the heteroatom (most commonly are pentavalent phosphorus P V, tetravalent silicon Si IV, or trivalent boron B III), M ...
Gallium nitride (Ga N) is a binary III/V direct bandgap semiconductor commonly used in blue light-emitting diodes since the 1990s. The compound is a very hard material that has a Wurtzite crystal structure.