Nitrosyl iodide

In the case of fluorine, NOF3 is also produced during this reaction. The stabihty of the nitrosyl halides decreases in the order F > Cl > Br. NOCl is 0.5% decomposed at 298 K, NOBr is 7% decomposed, and nitrosyl iodide is unstable and decomposes rapidly to nitrogen monoxide and iodine, and has so far only been observed in matrix isolation at 9K. 

Niobiun bromide (NbBTg) BrgNbjd) 525 Nitrosyl iodide (ONI) IjNjOj(g) 1345... 

TABLE TITLE Potassium iodide (KI) Potassium iodide (KI) Potassium iodide (KI) Potassium iodide (KI) Lithium iodide (LiI) Lithium iodide (LiI) Lithium iodide (Lil) Lithium iodide (Lil) Magnesium iodide (Mgl) Molybdeniuti iodide ( toI) Nitrosyl iodide (ONI) Sodium iodide (Nal) Sodium iodide (Nal) Sodium iodide (Nal)... 

The metal center in (i9 -C5H5)M(L)(CO)(allyl) can be considered pseudotetrahedral and characterized by the (R) and (5) nomenclature. Neutral chiral complexes of this type have been prepared previously, e.g., phosphine carbonyl derivatives (21, 75) and nitrosyl halide derivatives prepared by carbonyl displacement from nitrosyl cations by iodide (57, 60). Each of the diastereomers produced by the addition of a prochiral allyl moiety to the chiral metal center exhibit endo-exo isomerism. The endo-exo equilibration depends on charge and the neutral nitrosyl iodides rearrange rapidly compared to the cationic nitrosyls. 

Another example of this type of neutrtil NHC-supported dinickel(I) compound is dinickel(I) p-iodide p-nitrosyl compound 57, in which the two Ni(I) centers were bridged by an iodide and a nitrosyl, and capped by the NHCs. Here, the Ni(I)-Ni(I) bond length is 2.314(1)A (Entry 25, Table 10.2). Complex 57 was made from the reduction of the Ni(II) nitrosyl iodide monomer [Ni(II)( PPr)(NO)(l)] by sodium amalgam (Scheme 10.24) [24]. 

The nitrosation of several amines in aqueous solution by dissolved gaseous nitrosyl chloride has been studied.Provided the amine is in excess, the nitrosation is quantitative, and there is no complication from hydrolysis of the nitrosyl chloride. The reactivity of amines more basic than A -methyl-4-nitroan-iline pKa = 1.49) toward nitrosyl chloride is largely independent of their basicity, and therefore these amines are presumed to react on encounter. Studies on reactions of NOCl with secondary amines " and olefins " have also been reported. The iodine-catalyzed A -nitrosation of piperidine, morpholine, and N-methylpiperazine by NO is independent of the amine and involves a rate-determining formation of nitrosyl iodide, followed by rapid reaction with the amine. 

Binary Compounds. The mthenium fluorides are RuF [51621 -05-7] RuF [71500-16-8] tetrameric (RuF ) [14521 -18-7] (15), and RuF [13693-087-8]. The chlorides of mthenium are RUCI2 [13465-51-5] an insoluble RuCl [10049-08-8] which exists in an a- and p-form, mthenium trichloride ttihydrate [13815-94-6], RuCl3-3H2 0, and RuCl [13465-52-6]. Commercial RuCl3-3H2 0 has a variable composition, consisting of a mixture of chloro, 0x0, hydroxo, and often nitrosyl complexes. The overall mthenium oxidation state is closer to +4 than +3. It is a water-soluble source of mthenium, and is used widely as a starting material. Ruthenium forms bromides, RuBr2 [59201-36-4] and RuBr [14014-88-1], and an iodide, Rul [13896-65-6]. 

Codeposition of silver vapor with perfluoroalkyl iodides at -196 °C provides an alternative route to nonsolvated primary perfluoroalkylsilvers [272] Phosphine complexes of trifluaromethylsilver are formed from the reaction of trimethyl-phosphme, silver acetate, and bis(trifluoromethyl)cadmium glyme [755] The per-fluoroalkylsilver compounds react with halogens [270], carbon dioxide [274], allyl halides [270, 274], mineral acids and water [275], and nitrosyl chloride [276] to give the expected products Oxidation with dioxygen gives ketones [270] or acyl halides [270] Sulfur reacts via insertion of sulfur into the carbon-silver bond [270] (equation 188)... 

Such reactions provide an excellent route to anhydrous metal nitrates, particularly when metal bromides or iodides are used, since then the nitrosyl halide decomposes and this prevents the possible... 

Nucleophilic catalysis is also observed with iodide ions. Fluoride ion does not form nitrosyl fluoride under diazotization conditions, as is to be expected from Pearson s hard and soft acids and bases principle which was discussed briefly in Section 3.2. More recently, nucleophilic catalysis has also been shown to occur with thiocyanate ion (SCN ), thiosulfate ion (HS2Of), dimethyl sulfide, and thiourea (H2NCSNH2) or its alkyl derivatives (see below). 

Nitropropane Nitrosyl fluoride Nitrosyl perchlorate Nitrourea Nitrous acid Nitryl chloride Oxalic acid See under Nitromethane chlorosulfonic acid, oleum Haloalkenes, metals, nonmetals Acetones, amines, diethyl ether, metal salts, organic materials Mercury(II) and silver salts Phosphine, phosphorus trichloride, silver nitrate, semicarbazone Ammonia, sulfur trioxide, tin(IV) bromide and iodide Furfuryl alcohol, silver, mercury, sodium chlorate, sodium chlorite, sodium hypochlorite... 

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