1205678-47-2Relevant academic research and scientific papers
Supramolecular Chemistry of Some Metal Acetylacetonates with Auxiliary Pyridyl Sites
Gunawardana, Chamara A.,Sinha, Abhijeet S.,Desper, John,Lakovi?, Marijana,Aaker?y, Christer B.
, p. 6936 - 6945 (2018)
Hetero-bifunctional ligands can pave the way for elaborate metallo-supramolecular systems and are also useful for combining metal-ligand bonding with other types of noncovalent interactions. We synthesized two new pyridyl-acetylacetonate ligands, 3-(4-(pyridin-4-yl)phenyl)pentane-2,4-dione (L1) and 3-(4-(pyridin-4-ylethynyl)phenyl)pentane-2,4-dione (L2), and explored their metal binding ability with selected di- and trivalent transition metal ions. As expected, the acetylacetonate ligation with metal dications remains consistent among four structures, [Cu(L1)2(MeOH)2]n, [Co(L2)2]n, [Cu(L2)2(MeOH)2], and [Zn(L2)2(MeOH)2]; the metal is four-coordinate and resides in a square planar environment. Differences in the overall architectures arise basically from the role played by the terminal heterocycle (i.e., the pyridyl group). In [Cu(L1)2(MeOH)2]n and [Co(L2)2]n, the heterocyclic end directly binds to the metal (through vacant axial positions), thereby producing coordination networks. In [Cu(L2)2(MeOH)2] and [Zn(L2)2(MeOH)2], metal-methanol coordination and intermolecular O-H(methanol)···N(pyridine) hydrogen-bond interactions work in concert to weave those bis-acetylacetonate complexes into ribbon-like supramolecular polymeric arrays. Somewhat surprisingly, the only tris-chelated acetylacetonate complex characterized in this study, [Fe(L2)3], essentially exists as discrete dimeric aggregates.
Borondipyrromethene dyes with pentane-2,4-dione anchors
Olivier, Jean-Hubert,Haefele, Alexandre,Retailleau, Pascal,Ziessel, Raymond
supporting information; experimental part, p. 408 - 411 (2010/04/26)
[Chemical equation presented] New, acetylacetone-linked borondipyrromethene (BODIPY) dyes were readily obtained from BODIPY cores by various protocols involving direct grafting with acetylacetone or cross-coupling from a preorganized phenylacacH derivative bearing either an iodo or an ethynyl function. Facile anchoring on TiO2 powder is obtained and scrutinized by FT-IR spectroscopy.
