6533b861fe1ef96bd12c43a3
RESEARCH PRODUCT
Copper-Assisted Hemiacetal Synthesis: A Cu II Chain Obtained by a One-Step in situ Reaction of Picolinaldehyde
Antonio FronteraPiu DhalCarlos J. Gómez-garcíaSamiran MitraAshok SasmalAntonio BauzáGuillaume Piletsubject
Cyclic voltammetryDimerInorganic chemistrychemistry.chemical_elementCrystal structure[CHIM.INOR]Chemical Sciences/Inorganic chemistrylaw.inventionInorganic Chemistrychemistry.chemical_compoundlawSpectrophotometryMagnetic propertiesmedicine[CHIM]Chemical SciencesElectron paramagnetic resonancePolynuclear complexesmedicine.diagnostic_testCopperIn situ ligand synthesisCrystallographyDensity functional calculationschemistryHemiacetalSodium thiocyanateCyclic voltammetryCopperEPR spectroscopydescription
International audience; The 1D polymer complex [Cu2(L)2(SCN)2]n (1 ) has been synthesised in a one‐step in situ reaction of picolinaldehyde with sodium thiocyanate. The complex 1 was characterised by FTIR spectroscopy, UV/Vis spectrophotometry and elemental analysis. The crystal structure of complex 1 shows that chains of dimer complexes are formed with tetra‐ and pentacoordinate copper centres alternately linked by one thiocyanato and two alkoxido bridges. Variable‐temperature magnetic measurements showed a strong antiferromagnetic interaction between the copper centres within the dimer mediated by the two alkoxido bridges with a J value of –374 cm–1, which is in agreement with the DFT‐calculated value of –284 cm–1. EPR and cyclic voltammetric analyses were also carried out, as well as DFT calculations to evaluate the packing forces and their energies.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-07-01 |