Kinetics of hydrolysis of amino acid esters in the presence of aquocomplexes involving ethylenediamine, diethylenetriamine and triethylenetetramine ligands. Part 2. Cobalt(II), cobalt(III), platinum(II) and palladium(II)

✍ Scribed by Haribal Chakraborty; M. Lutfor Rahman

• Publisher: Springer
• Year: 1994
• Tongue: English
• Weight: 267 KB
• Volume: 19
• Category: Article
• ISSN: 0340-4285
• DOI: 10.1007/bf00136354

✦ Synopsis

Aquocomplexes of cobalt(II), cobalt(III), palladium(II) and platinum(II) involving (HzNCH2)2, [H2N(CH2)z]2NH and [H2N(CHz)2NHCH2]2 as ligands were prepared and characterized. The kinetics of base hydrolysis of the amino acid esters HzNCH2CO2Me'HC1, HOC6H4CH2CH-(NHz)CO2Me-HCI, MeS(CH z)2CH(NH2)CO zMe" HC1, HSCH2CH(NH2)COzEt-HC1, C3H3NzCH2CH(NH2)-CO2Me'2HC1 and [--SCH2CH(NH2)CO2Me]2"2HC1 in the presence of these complexes have been studied. The rate of hydrolysis is influenced substantially by these complexes and the second order rate constants are some 10-90times greater than those obtained in the presence of simple metal ions.