In: Polymers, 2016, vol. 8, no. 6, p. 208
Polyether ether ketone (PEEK) is a well-known polymer used for implants and devices, especially spinal ones. To overcome the biomaterial related infection risks, 4-4′- difluorobenzophenone, the famous PEEK monomer, was modified in order to introduce binding sites for silver ions, which are well known for their antimicrobial activity. The complexation of these new monomers with different...
|
In: Acta Crystallographica C, 2016, vol. 72, p. 230-233
Mercury(II) exhibits a strong preference for linear coordination which has been attributed to relativistic effects splitting the 6p orbitals and promoting sp hybridization. If the two ligands attached to the mercury(II) ion are weak donors, the metal ion can act as a good Lewis acid and expand its coordination number. Moreover, mercury has a special affinity for softer bases,...
|
In: Chemistry - A European Journal, 2016, vol. 22, no. 13, p. 4374–4378
Multiresponsive materials that display predefined photoluminescence color changes upon exposure to different stimuli are attractive candidates for advanced sensing schemes. Herein, we report a cyano-substituted oligo(p-phenylene vinylene) (cyano-OPV) derivative that forms five different solvent-free solid-state molecular assemblies, luminescence properties of which change upon thermal and...
|
In: Crystal Growth & Design, 2016, vol. 16, no. 1, p. 189–199
Oxidative substitution reactions of chromium(II) chloride with lithium phenoxide in the presence of water give access to new polynuclear chromium(III) aryloxide complexes and coordination polymers. While a one-dimensional coordination polymer based on chromium(III), [Cr₂(μ₃-OPh)₂(μ-OPh)₆(μ-OH)(μ₃-Li)₄(μ₃-Cl)₂Li(THF)₆]n, is first obtained by serendipity,...
|
In: European Journal of Inorganic Chemistry, 2015, vol. 2015, no. 34, p. 5628–5638
Carbon monoxide releasing molecules (CORMs) are investigated widely in synthetic and medicinal chemistry owing to the potential therapeutic applications of the CO gas. Organometallic carbonyl complexes are best suited to play the role of CO carriers as they allow the exogenous release of CO under controlled conditions, and the toxicity of the gas can be overcome. With the long-term goal of...
|
In: Journal of the Iranian Chemical Society, 2015, vol. 12, no. 12, p. 2093–2103
Hirshfeld surfaces and two-dimensional fingerprint plots are used to visualize and analyse intermolecular interactions in two new organotin(IV)-phosphoryl complexes: [Sn(CH₃)₂[OP(O)(OCH₃)₂]₂]n (I) and {[(4-CH₃)C₆H₄NH][C₅H₉(4-CH₃)N]₂P(O)}Sn(CH₃)₂Cl₂ (II). In (I), the asymmetric unit is composed of the Sn(CH₃)₂[OP(O)(OCH₃)₂]₂ segment bonded to the...
|
In: Research on Chemical Intermediates, 2015, vol. 41, no. 4, p. 1881–1891
Reaction of 4-bromo-2-(((5-chloro-2-hydroxyphenyl) imino)methyl)phenol (H₂L) with VOSO₄·XH₂O generates the oxido-vanadium(V) complex [VOL(OCH₃)(OHCH₃)], that characterized by FT-IR, UV–Vis, and elemental analysis. The complex was also characterized by single crystal X-ray diffraction crystallography. A DFT calculation was carried out on the complex using the B3LYP/6-31+G(d,p) method....
|
In: Physical Chemistry Chemical Physics, 2015, vol. 17, no. 15, p. 10238–10249
A series of naphthaldehydes, including a Mannich base, have been investigated by UV-Vis spectroscopy, NMR and theoretical methods to explore their potential tautomerism. In the case of 4-hydroxy-1-naphthaldehyde concentration dependent deprotonation has been detected in methanol and acetonitrile. For 4-hydroxy-3-(piperidin-1-ylmethyl)-1-naphthaldehyde (a Mannich base) an intramolecular proton...
|
In: ChemPhysChem, 2015, vol. 16, no. 3, p. 649–657
A series of new tautomeric azonaphthols are synthesized and the possibilities for molecular switching are investigated using molecular spectroscopy, X-ray analysis and density functional theory quantum chemical calculations. Two opposite effects that influence switching are studied: attaching a piperidine sidearm, and adding substituents to the phenyl ring. On the one hand, the attached...
|
In: Inorganica Chimica Acta, 2015, vol. 427, p. 52–61
Two new cis-MoO₂ [MoO₂(L)(EtOH)] (1), [MoO₂(L) (Py)] (2) [L: (3-methoxy-2oxidobenzylidene)benzohydrazidato], complexes have been synthesized and fully characterized on the basis of elemental analysis, FT-IR, molar conductivity, ¹H NMR, ¹³C NMR and electronic spectra. The structure of complexes has been accomplished by single crystal X-ray...
|
