TY - JOUR
T1 - Chiral metal complexes. 9. Changes in tetradentate stereochemistry involving a Λ-α to Δ-α rearrangement
T2 - a new form of octahedral inversion
AU - Chambers, Jill A.
AU - Goodwin, Terence J.
AU - Mulqi, Moh'd W.
AU - Williams, Peter A.
AU - Vagg, Roberts S.
N1 - Erratum can be found in Inorganica Chimica Acta, 83(2), p. 143, 1984.
https://doi.org/10.1016/S0020-1693(00)82523-2
PY - 1983
Y1 - 1983
N2 - When Λ-α-[Co(R-picpn)Cl2)]Cl)4 (R-picpn = (3R)3-methyl 1,6-di(2-pyridyl)-2,5-diazahexane) is reacted with sodium oxalate in aqueous solution, the complex Λ-α[Co(R-picpn)(ox)]ClO4 is obtained. This reaction represents a total inversion of absolute configuration with respect to the metal centre. When isolated as the iodide salt, [Co(R-picpn)(ox)]I·1.5H2O, the cationic product is obtained as a mixture of Δ-α and Λ-β diastereoisomers with a minor quantity of the Λ-αform. These isomeric ratios appear to be influenced by differences in reaction conditions, including exposure to light.
AB - When Λ-α-[Co(R-picpn)Cl2)]Cl)4 (R-picpn = (3R)3-methyl 1,6-di(2-pyridyl)-2,5-diazahexane) is reacted with sodium oxalate in aqueous solution, the complex Λ-α[Co(R-picpn)(ox)]ClO4 is obtained. This reaction represents a total inversion of absolute configuration with respect to the metal centre. When isolated as the iodide salt, [Co(R-picpn)(ox)]I·1.5H2O, the cationic product is obtained as a mixture of Δ-α and Λ-β diastereoisomers with a minor quantity of the Λ-αform. These isomeric ratios appear to be influenced by differences in reaction conditions, including exposure to light.
UR - http://www.scopus.com/inward/record.url?scp=0040731267&partnerID=8YFLogxK
U2 - 10.1016/S0020-1693(00)91221-0
DO - 10.1016/S0020-1693(00)91221-0
M3 - Article
AN - SCOPUS:0040731267
SN - 0020-1693
VL - 75
SP - 241
EP - 247
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
IS - C
ER -