Diastereoisomeric β-ethyl aspartate-cobalt(III) complexes: Δ (+)578- and Δ (-)578--bis-(ethane-1,2-diamine) [β-ethyl (S)-aspartato]cobalt(III) bis-(perchlorate) monohydrate
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Diastereoisomeric β-ethyl aspartate-cobalt(III) complexes : Δ (+)578- and Δ (-)578--bis-(ethane-1,2-diamine) [β-ethyl (S)-aspartato]cobalt(III) bis-(perchlorate) monohydrate. / Hammershoøi, Anders; Schau-Magnussen, Magnus; Bendix, Jesper; Moølgaard, Anne.
I: Acta Crystallographica Section C: Crystal Structure Communications, Bind 66, Nr. 11, 2010, s. m319-m322.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Diastereoisomeric β-ethyl aspartate-cobalt(III) complexes
T2 - Δ (+)578- and Δ (-)578--bis-(ethane-1,2-diamine) [β-ethyl (S)-aspartato]cobalt(III) bis-(perchlorate) monohydrate
AU - Hammershoøi, Anders
AU - Schau-Magnussen, Magnus
AU - Bendix, Jesper
AU - Moølgaard, Anne
PY - 2010
Y1 - 2010
N2 - The structures of the diastereoisomers Δ (+)578-, (I), andΔ(-)578--bis-(ethane-1,2-diamine)[β-ethyl (S)-aspartato-k2 N,O1]cobalt(III) bis-(perchlorate) monohydrate, (II), both [Co(C6H10N2O 4)(C2H8N2)2](ClO 4)2·H2O, are compared. In both structures, the ester group of the amino acid side chain is engaged only in intra-molecular hydrogen bonding to coordinated amine groups. This inter-action is stronger in (I) and correlates with previously observed diastereoisomeric equilibrium ratios for related metal complex systems in aqueous media. The two perchlorate anions of (II) are located on twofold axes. Both perchlorates in (I) and one of the perchlorates in (II) are affected by disorder. Both structures exhibit extensive three-dimensional hydrogen-bonding net-works.
AB - The structures of the diastereoisomers Δ (+)578-, (I), andΔ(-)578--bis-(ethane-1,2-diamine)[β-ethyl (S)-aspartato-k2 N,O1]cobalt(III) bis-(perchlorate) monohydrate, (II), both [Co(C6H10N2O 4)(C2H8N2)2](ClO 4)2·H2O, are compared. In both structures, the ester group of the amino acid side chain is engaged only in intra-molecular hydrogen bonding to coordinated amine groups. This inter-action is stronger in (I) and correlates with previously observed diastereoisomeric equilibrium ratios for related metal complex systems in aqueous media. The two perchlorate anions of (II) are located on twofold axes. Both perchlorates in (I) and one of the perchlorates in (II) are affected by disorder. Both structures exhibit extensive three-dimensional hydrogen-bonding net-works.
U2 - 10.1107/S0108270110036851
DO - 10.1107/S0108270110036851
M3 - Journal article
C2 - 21051807
AN - SCOPUS:78349267869
VL - 66
SP - m319-m322
JO - Acta crystallographica. Section C, Structural chemistry
JF - Acta crystallographica. Section C, Structural chemistry
SN - 2053-2296
IS - 11
ER -
ID: 240003101