Publications by authors named "Spyros Koinis"

The synthesis and characterization of the tetrathiomolybdatorhodium(I) monoanionic complexes [L2Rh(μ-S)2MoS2](-) (L = CO (3), P(OPh)3 (4), P(O-o-Tol)3 (P(o-CH3C6H4)3; 5), P(OMe)3 (6), P(OEt)3 (7), P(O-i-Pr)3 (8); L2 = COD (1,5-cyclooctadiene; 2), cis-dppen (cis-Ph2PCH═CHPPh2; 9), dppe (Ph2PCH2CH2PPh2; 10), dppb (Ph2P(CH2)4PPh2; 11)) is presented. The complex 2 (NEt4(+) salt) was characterized by X-ray diffraction analysis. A detailed DFT study of the electronic structures of 2-4 and 6-8 has revealed the existence of extended electron delocalization over the four-membered Rh(μ-S)2Mo ring and hence the possibility of electronic communication between the metal centers.

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Article Synopsis
  • The control of nanocrystal structures remains challenging despite advancements in synthetic methods, with minor changes in synthesis parameters leading to different nanoscale characteristics.
  • This study reveals that the rate of adding cobalt precursor to the ligand solution influences the formation of cobalt nanoparticles by triggering a side reaction that consumes lauric acid, a key stabilizing ligand.
  • The findings suggest that similar unexpected side reactions may occur in other nanocrystal systems, indicating that they should be more widely acknowledged in scientific discussions.
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The present technique describes a simple, sensitive spot test for the rapid one-shot detection of dopamine in human urine using lipid films with incorporated resorcin[4]arene receptor that are synthesized by a chemical reaction with a methacrylate polymer on a glass fiber filter. The lipid films without the receptor provided fluorescence under a UV lamp. The use of the receptor in these films quenched this fluorescence, and the color became similar to that of the filters without the lipid films.

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