Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
The Reaction of [CoL2] or [CoL2(NO)] (L=4-Methyl-8-quinolinolate Ion) with Nitrogen Monoxide
Eiichi MikiMikio TanakaKatsunori SaitoToshiaki MaejimaKunihiko MizumachiTatsujiro Ishimori
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1985 Volume 58 Issue 6 Pages 1642-1645


[Co(4mqn)2]·2H2O (4mqn=4-methyl-8-quinolinolate ion) reacted with nitrogen monoxide in CH2Cl2 or in DMF at room temperature to give [Co(4mqn)2(NO)] (1). [Co(4mqn)2]·2H2O and 1 reacted with nitrogen monoxide in 10 vol% pyridine–DMF and in pyridine at ca. 283–288 K to precipitate [Co(4mqn)2(NO)(py)] (2). When the reaction was carried out at ca. 293–303 K, [Co(4mqn)2(NO2)(py)] (3) instead of 2 was precipitated. From the filtrates, [Co(4mqn)2(NO3)(py)]·py·2H2O (4) was obtained. The gaseous product of the reactions giving 2 and 4, and 3 and 4, was dinitrogen oxide. The stoichiometries of the reactions in the pyridine–DMF and in pyridine were confirmed by mass analyses for the residual nitrogen monoxide and the produced dinitrogen oxide.

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