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2,11-Dialkylated 1,12-Diazaperylene Copper(I) Complexes: First Supramolecular Column Assemblies by π-π Stacking between Homoleptic Tetrahedral Metal Complexes, Exhibiting Low-Energy MLCT Transitions

Title:
2,11-Dialkylated 1,12-Diazaperylene Copper(I) Complexes: First Supramolecular Column Assemblies by π-π Stacking between Homoleptic Tetrahedral Metal Complexes, Exhibiting Low-Energy MLCT Transitions
Abstract:
2,11-Dialkylated 1,12-diazaperylenes (alkyl = Me, Et, iPr) dmedap, detdap and dipdap have been synthesized by reductive cyclization of 3,3′-dialkylated 1,1′-biisoquinolines 3a–c, resulting in the first copper(I) complexes of a “large-surface” ligand. The new copper(I) complexes show low-energy MLCT absorptions unprecedented for bis(α-diimin)copper(I) complexes. The solid structures of the complexes[Cu(dipdap)2]BF4·CH2Cl2·1.5H2O, [Cu(dipdap)2]OTf·CH2Cl2, [Cu(dipdap)2]I·C2H4Cl2·THF·2H2O, [Cu(dmedap)2]OTf and [Cu(dipdap)2]AQSO3·H2O (AQSO3 = sodium 9,10-dihydro-9,10-dioxo-2-anthracenesulfonate) are reported. In [Cu(dipdap)2]BF4·CH2Cl2·1.5H2O, each copper(I) complex cation interacts with two others by π-π stacking interactions forming a novel supramolecular column structural motif running along the crystallographic c axis. In the crystalline compound [Cu(dipdap)2]AQSO3·H2O, aggregation between two complex cations and two additional anions by π-π stacking interactions is observed, leading to a tetrameric assembly. Furthermore, the three complex compounds [Cu(L)2]BF4 (L = dmedap, detdap, dipdap) were tested for sensory applications in aqueous buffer solutions in electrochemical studies of the complex immobilized on glassy carbon electrodes.
Year:
2009
Publication type:
Journal article
Journal:
European Journal of Inorganic Chemistry
ISSN:
1434-1948
Number:
31
Volume:
2009
Pages:
4648–4659
Language:
English
Document status:
Published
PubListerURL:
https://publister.bib.th-wildau.de/publister/public/publication/252
Keywords:
Copper; N ligands; Pi interactions; Self-assembly; Immobilization
Kammer, S., Kelling, A., Baier, H., Mickler, W., Dosche, C., Rurack, K., et al. (2009). 2,11-Dialkylated 1,12-Diazaperylene Copper(I) Complexes: First Supramolecular Column Assemblies by π-π Stacking between Homoleptic Tetrahedral Metal Complexes, Exhibiting Low-Energy MLCT Transitions European Journal of Inorganic Chemistry. 2009 (31), 4648–4659.
@article{252,
    author           = {Kammer, Stefan and Kelling, Alexandra and Baier, Heiko and Mickler, Wulfhard and Dosche, Carsten and Rurack, Knut and Kapp, Andreas and Lisdat, Fred and Holdt, Hans-Jürgen},
    title            = {2,11-Dialkylated 1,12-Diazaperylene Copper(I) Complexes: First Supramolecular Column Assemblies by π-π Stacking between Homoleptic Tetrahedral Metal Complexes, Exhibiting Low-Energy MLCT Transitions},
    journal          = {European Journal of Inorganic Chemistry},
    year             = {2009},
    volume           = {2009},
    number           = {31},
    pages            = {4648–4659},
    doi              = {10.1002/ejic.200900695},
}


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