Search results
Results from the WOW.Com Content Network
No mineral of the ideal Cu(NO 3) formula, or the hydrates, are known. Likasite, Cu 3 (NO 3)(OH) 5 ·2H 2 O and buttgenbachite, Cu 19 (NO 3) 2 (OH) 32 Cl 4 ·2H 2 O are related minerals. [21] [22] Natural basic copper nitrates include the rare minerals gerhardtite and rouaite, both being polymorphs of Cu 2 (NO 3)(OH) 3.
Copper is a chemical element with the symbol Cu (from Latin: cuprum) and the atomic number of 29. It is easily recognisable, due to its distinct red-orange color.Copper also has a range of different organic and inorganic salts, having varying oxidation states ranging from (0,I) to (III).
N 2 O 4 undergoes molecular autoionization to give [NO +] [NO 3 −], with the former nitrosonium ion being a strong oxidant. The method is illustrated by the route to β-Cu(NO 3) 2: Cu + 2 N 2 O 4 → Cu(NO 3) 2 + 2 NO. Many metals, metal halides, and metal carbonyls undergo similar reactions, but the product formulas can be deceptive.
The tetrahydrate consists of discrete, octahedral [(H 2 O) 4 Co(NO 3) 2] molecules. The hexahydrate is better described as hexaaquacobalt(II) nitrate, [Co(OH 2) 6][NO 3] 2, as it consists of discrete [Co(OH 2) 6] 2+ and [NO 3] − ions. [5] Above 55 °C, the hexahydrate converts to the trihydrate and at higher temperatures to the monohydrate. [2]
An example of chelating nitrite is [Cu(bipy) 2 (O 2 N)]NO 3 – "bipy" is the bidentate ligand 2,2′-bipyridyl. This bonding mode is sometimes described as κ 2O,O-NO 2. Focusing on electron-counting in monometallic complexes, O-bonded, N-bonded are viewed as 1-electron pseudohalides ("X-ligand").
A comprehensive list of discriminatory acts against American Muslims might be impossible, but The Huffington Post wants to document this deplorable wave of hate using news reports and firsthand accounts.
Yttrium barium copper oxide (YBa 2 Cu 3 O 7) consists of both Cu(II) and Cu(III) centres. Like oxide, fluoride is a highly basic anion [19] and is known to stabilize metal ions in high oxidation states. Both copper(III) and even copper(IV) fluorides are known, K 3 CuF 6 and Cs 2 CuF 6, respectively. [1]
Some troops leave the battlefield injured. Others return from war with mental wounds. Yet many of the 2 million Iraq and Afghanistan veterans suffer from a condition the Defense Department refuses to acknowledge: Moral injury.