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Crystal Structures of Oxalato and Oxamido Polyaminecobalt(III) Complexes Produced by Hydrolysis of Monooxamide
Author(s) -
Chun Hyungphil,
Salinas Bobby J.,
Bernal Ivan
Publication year - 1999
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199904)1999:4<723::aid-ejic723>3.0.co;2-d
Subject(s) - chemistry , hydrolysis , crystal structure , amide , cleavage (geology) , stereochemistry , medicinal chemistry , crystallography , organic chemistry , geotechnical engineering , fracture (geology) , engineering
The reactions of sodium monooxamide (H 2 NCOCO 2 Na) with trans ‐[Co(en) 2 Cl 2 ]Cl, trans ‐[Co(3,2,3‐tet)Cl 2 ]Cl (3,2,3‐tet = 1,5,8,12‐tetraazadodecane), cis ‐α‐[Co(trien)Cl 2 ]Cl and [Co(tren)Cl 2 ]Cl result in the formation of [Co(en) 2 (ox)]Cl · 4H 2 O ( 1 ), cis ‐β‐[Co(3,2,3‐tet)(ox)]Cl· 4 H 2 O ( 2 ), cis ‐α‐[Co(trien)(ox)]Cl · 2 H 2 O ( 3 ), and [Co(tren)(ox)](ClO 4 ) · 0.5 H 2 O ( 4 ) respectively, implying a hydrolytic cleavage of the amide bond. [Co(tren)( O , O′ ‐oxam)]Cl 2 · 2 H 2 O ( 5 ) (oxam = H 2 NCOCO 2 − ) and p ‐[Co(tren)(NH 3 )( O ‐oxam)]Cl 2 ( 6 ) have also been prepared in order to give mechanistic information for the hydrolysis of monooxamide. Crystal structures of the products are reported and possible pathways for the hydrolysis reactions are discussed.