1 : 4-Cyclohexanedione-dioxime

C6H10N2O2 Nioxime (1,2-Cyclohexanedione dioxime) Extraction-photometric Fe, Ni 3... 

C9H,6N202 4-Isopropyl-1,2-cyclohexanedione dioxime Extraction-photometric Ni 3... 

C10H18N2O2 4- er -Butylnioxime A-tert-Buty 1-1,2-cyclohexanedione dioxime) Ebchaction-photomehic Gravimetric Ni Bi, Ni, Pd 3... 

The structure of the 1,2-cyclohexanedione dioxime (niox) complex, [Fe(niox)2(imid)2] (54), which is more soluble than the analogous DMG complex, has also been determined,604 but because of disorder in the cyclohexyl rings some of the important structural parameters were ill defined. However, the Mossbauer spectra of [Fe(niox)2L2] (L = py, imid, NH3, BuNH2) and related complexes have been studied in detail and are consistent with considerable tetragonal distortion.605,606 [Fe(niox)2(imid)2] reacts with CN to give [Fe(niox)2(CN)2]2, and by using only one equivalent of CN" [Fe(niox)2(CN)(imid)] can be obtained.605 Reaction with CO affords [Fe(niox)2(imid)(CO)] as in Scheme 13. 

The oximes of ketones with large hydrocarbon radicals like the acetyl-phenanthrenes are readily prepared by die action of hydroxylamine hydrochloride in the presence of pyridine. Special studies have been made for the synthesis of 1,2-cyclohexanedione dioxime as well as the next higher homolog. Dimethylglyoxime, CH,C(=NOH)C(=NOH)CH is... 

N2O2C6H10, 1,2-Cyclohexanedione, dioxime, boron-iron complex, 21 112 N2PdSnH8, Palladate(II), bis(hexasulfido)-, diammonium, nonstoichiometric, 21 14 N2PtSioH8, Platinate(II), bis(pentasulfido)-, bis(tetrapropylammonium), 20 13 N2PtSi3H8, Platinate(IV), tris(pentasulftdo)-, diammonium, 21 12, 13... 

A solution of the cobalt (II) salt is treated with NagCOa 10 H3O, added in small portions and with stirring, until the pH reaches 3.5 then IN NasCOg solution is added imtil the cobalt carbonate just barely precipitates. The precipitated carbonates are removed by filtration. Following this, 8 ml. of a saturated aqueous solution of 1,2-cyclohexanedione dioxime is added for each 10 mg. of Ni, Cu and Fe present in the filtrate. The Ni precipitates out the suspension is heated for one hour at 90-95°C with occasional stirring, and the precipitate is filtered off. 

---