Aufsatz in einer Fachzeitschrift
Rational design of the first closed coordination capsule with octahedral outer shape.
Details zur Publikation
Autor(inn)en: | Mueller, I.; Spillmann, S.; Franck, H.; Pietschnig, R. |
Verlag: | Wiley-VCH Verlag GmbH & Co. KGaA |
Publikationsjahr: | 2004 |
Zeitschrift: | Chemistry - A European Journal |
Seitenbereich: | 2207-2213 |
Jahrgang/Band : | 10 |
Erste Seite: | 2207 |
Letzte Seite: | 2213 |
ISSN: | 0947-6539 |
eISSN: | 1521-3765 |
DOI-Link der Erstveröffentlichung: |
Zusammenfassung, Abstract
The rational synthesis of an octahedral coordination capsule in which the triangular faces are covered by single ligands is described herein. Starting with tris(2-hydroxybenzylidene)triaminoguanidinium chloride [H6L]Cl, the authors obsd. an oxidative cyclization of this ligand in the presence of PPh4+ ions resulting in [Pd(H2L')(PPh3)] (1). The use of 5,5-diethylbarbiturate (bar2-) as a bridging ligand in the presence of [Co(en)3]3+ (en = ethylenediamine) gives a rectangular box (Et4N)6[{Co{(PdCl)(Pd)L}2(μ-bar)}2] (2). The anal. of the architecture of compds. 1 and 2 enables the development of a self-assembly strategy for the synthesis of an octahedral coordination cage Na4(Et3NH)12[(Pd3L)8{μ-(bar)}12]·xH2O (3). Compd. 3 was characterized by 13C-MAS NMR spectroscopy and single-crystal structure anal. [on SciFinder(R)]
The rational synthesis of an octahedral coordination capsule in which the triangular faces are covered by single ligands is described herein. Starting with tris(2-hydroxybenzylidene)triaminoguanidinium chloride [H6L]Cl, the authors obsd. an oxidative cyclization of this ligand in the presence of PPh4+ ions resulting in [Pd(H2L')(PPh3)] (1). The use of 5,5-diethylbarbiturate (bar2-) as a bridging ligand in the presence of [Co(en)3]3+ (en = ethylenediamine) gives a rectangular box (Et4N)6[{Co{(PdCl)(Pd)L}2(μ-bar)}2] (2). The anal. of the architecture of compds. 1 and 2 enables the development of a self-assembly strategy for the synthesis of an octahedral coordination cage Na4(Et3NH)12[(Pd3L)8{μ-(bar)}12]·xH2O (3). Compd. 3 was characterized by 13C-MAS NMR spectroscopy and single-crystal structure anal. [on SciFinder(R)]
Schlagwörter
cobalt palladium hydroxybenzylidenaminotriazole barbiturate prepn cage structure, crystal structure cobalt palladium hydroxybenzylidenaminotriazole barbiturate
