Ring-Conformations via the Competition of Electrostatic Interaction and Argentophilic Interaction. Cyclodimeric Structures of Silver Trifluoromethanesulfonate Containing Isonicotinate Ester Ligands

Metallacyclodimers, [Ag(OTf)(L1)]2 and [Ag(L2)]2(OTf)2 (L1 = 1,3-dibromo-2,2-bis[(isonicotinoyloxy)methyl] propane; L2 = 2,5-dimethyl-2,5-bis(isonicotinoyloxy)hexane) were constructed and characterized. The crystal structure of [Ag(OTf)(L1)]2 reveals a 32-membered cyclodimer, whereas that of [Ag(L2)...

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Bibliographic Details
Published in:Bulletin of the Korean Chemical Society 2009, 30(10), , pp.2341-2344
Main Authors: Chi Won Kim, Cho Rong Kim, 노태환, 정옥상
Format: Article
Language:English
Subjects:
화학
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Summary:Metallacyclodimers, [Ag(OTf)(L1)]2 and [Ag(L2)]2(OTf)2 (L1 = 1,3-dibromo-2,2-bis[(isonicotinoyloxy)methyl] propane; L2 = 2,5-dimethyl-2,5-bis(isonicotinoyloxy)hexane) were constructed and characterized. The crystal structure of [Ag(OTf)(L1)]2 reveals a 32-membered cyclodimer, whereas that of [Ag(L2)]2(OTf)2 shows a linked 34-membered cyclodimer chain via intercyclic argentophilic (Ag…Ag) interactions. [Ag(OTf)(L1)]2 affords “intramolecular π-π interaction cyclodimer” whereas [Ag(L2)]2(OTf)2 produces a racemic mixture of “twisted cyclodimer”. Ring-conformation of the cyclodimers was affected via the competition of electrostatic interaction and argentophilic interaction. KCI Citation Count: 2
ISSN:0253-2964
1229-5949
DOI:10.5012/bkcs.2009.30.10.2341