Issue 35, 2014

Tuning the coordination chemistry of cyclotriveratrylene ligand pairs through alkyl chain aggregation

Abstract

Propylated cyclotriveratrylene (CTV) ligands display different coordination chemistry over their methylated congeners as a result of increased solubility, an affinity for alkyl chain aggregation and steric factors. The propylated ligand tris(isonicotinoyl)-tris(propoxy)-cyclotricatechylene (L1p) forms a 1D coordination polymer within complex {[Ag(L1p)[Co(C2B9H11)2]](DMF)} (complex 1p), and a 2D sheet of 4·82 topology in {[Cd(L1p)(ONO2)2(H2O)]·(DMF)·0.5(Et2O)} (complex 2p), neither of which are formed with the analogous methylated ligand tris(isonicotinoyl)-cyclotriguaiacylene (L1m). Both complexes 1p and 2p display multiple sites of aggregation of hydrophobic groups. The new propylated ligand tris(2-quinolylmethyl)-tris(propoxy)-cyclotricatechylene (L2p) forms a 1D coordination polymer with Ag(I) in complex{[Ag2(L2p)2][Co(C2B9H11)2]2·1.5(MeNO2)} (complex 3p) and a novel, compressed octahedral structure with palladium(II) cations, [Pd6(L2p)4(CF3CO2)12] (complex 4p). Neither complex was accessible with the methylated congener tris(2-quinolylmethyl)-cyclotriguaiacylene (L2m).

Graphical abstract: Tuning the coordination chemistry of cyclotriveratrylene ligand pairs through alkyl chain aggregation

Supplementary files

Article information

Article type
Paper
Submitted
05 mar. 2014
Accepted
29 may. 2014
First published
10 jun. 2014

CrystEngComm, 2014,16, 8138-8146

Author version available

Tuning the coordination chemistry of cyclotriveratrylene ligand pairs through alkyl chain aggregation

J. J. Henkelis and M. J. Hardie, CrystEngComm, 2014, 16, 8138 DOI: 10.1039/C4CE00467A

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