2510-22-7Relevant articles and documents
Synthesis and characterization of two different azarubrenes
Xie, Gaozhan,Hahn, Sebastian,Rominger, Frank,Freudenberg, Jan,Bunz, Uwe H. F.
, p. 7593 - 7596 (2018)
The synthesis, properties and solid state X-ray single crystal structures of two new rubrene-derivatives, viz diazarubrene (4,4′-(6,12-diphenyltetracene-5,11-diyl)dipyridine) and tetraazarubrene (5,6,11,12-tetra(pyridin-4-yl)tetracene), are reported. Both the azarubrenes are more oxidatively stable than rubrene itself and show very similar optical properties but differ in their crystal packing from that of rubrene.
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Shvartsberg,M.S. et al.
, (1971)
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Synthesis, Electrochemistry, and Optical Properties of Highly Conjugated Alkynyl-Ferrocenes and -Biferrocenes
Bennett, Troy L. R.,Wilkinson, Luke A.,Lok, Jasmine M. A.,O'Toole, Robert C. P.,Long, Nicholas J.
, p. 1156 - 1162 (2021/05/06)
Sonogashira reactions are utilized herein to react iodo-ferrocenes and -biferrocenes with terminal alkyne ligands, functionalized with both pyridine and thioanisole groups. High-yielding reactions generate both monoalkynyl and dialkynyl derivatives, the r
Synthesis, optical spectroscopy, structural, and DFT studies on dimeric iodo-bridged Copper(I)complexes
Haque, Ashanul,Al Balushi, Rayya A.,Al-Busaidi, Idris Juma,Ilmi, Rashid,Al Rasbi, Nawal,Jayapal, Maharaja,Khan, Muhammad S.,Raithby, Paul R.
, p. 75 - 82 (2019/05/10)
Three new iodo-bridged copper(I)complexes of the type [CuI(PPh3)L]2, where L = Ar–≡–C5H4N, Ar = phenyl (C1), biphenyl (C2)and flourenyl (C3)have been synthesized via coordination-driven self-assembly processes. Two of Cu(I)complexes, C2 and C3, have been characterized by single-crystal X-ray diffraction studies. The complexes have two molecules of the P-donor ligand and two molecules of the N-donor ligand in trans configurations, supporting the central Cu2I2 unit. Absorption properties of the complexes have been investigated. Extensive DFT calculation has been carried out to delineate the influence of aromatic spacers on the optical properties and the nature of excited states. The ease of synthesis of these Cu(I)dimers and the wide range of ethynylpyridine supporting ligands that can be incorporated highlights the potential for these materials to form polymers by linking through the ethylylpyridine ligands.
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 (2018/10/20)
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.
