Nitrogen- and oxygen-bonded urethane: hydrolysis and linkage isomerization of [(NH3)5Co(NH2CO2C2H5)]3+ and [(NH3)5CoOC(NH2)OCH2CH3]3+

Autor:	W. G. Jackson, D. P. Fairlie
Rok vydání:	1990
Předmět:	Carbamate Stereochemistry Ligand medicine.medical_treatment Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound Hydrolysis Deprotonation chemistry medicine Ethyl carbamate Moiety Physical and Theoretical Chemistry Linkage isomerism Isomerization
Zdroj:	Inorganic Chemistry. 29:3139-3145
ISSN:	1520-510X 0020-1669
DOI:	10.1021/ic00342a017
Popis:	Coordination of ethyl carbamate via N rather than O to the pentaamminecobalt(III) moiety results in activation toward ligand hydrolysis. The carbonyl oxygen of the carbamate anion and of its ethyl ester (urethane) are preferentially coordinated in kinetically controlled syntheses. Noncoordinating bases facilitate the thermal rearrangement of the O-bound urethane complex in solution to the N-bonded linkage isomer, which has been isolated as its unreactive deprotonated form [(NH 3 ) 5 CoNHCO 2 C 2 H 5 ] 2+ . Similarly, the N-bound carbamate complex, previously believed to be an intermediate in the acid-induced conversion of [(NH 3 ) 5 CoNCO] 2+ to [(NH 3 ) 6 Co] 3+ and CO 2 , has been detected for the first time in this reaction
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a520b2a65c9a697dbb2e1cd7396ec3f3 https://doi.org/10.1021/ic00342a017 Zobrazit plný text záznamu