Synthesis, single crystal X-ray diffraction studies and application of novel chromium(III) complexes with 2,2′-bis(sulfanylethyl)- and 2,2′-bis(selanylethyl)ethers
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Add time:07/20/2019 Source:sciencedirect.com
A series of five chromium(III) complexes with tridentate ligands containing S/O-and Se/O-donor groups was obtained by the reaction of [Cr(MeCN)3Cl3] with 2,2′-bis(sulfanylethyl)ethers or 2,2′-bis(selanylethyl)ethers correspondingly. The new [Cr((RSCH2CH2)2O)Cl3] and [Cr((RSeCH2CH2)2O)Cl3] complexes were isolated as individual substances and characterized by TG/DSC, IR, EPR and elemental analysis. For the complex [Cr((EtSCH2CH2)2O)Cl3], a single crystal was characterized by X-ray diffraction analysis. Complexes [Cr((EtSCH2CH2)2O)Cl3], [Cr((MeSCH2CH2)2O)Cl3] and [Cr((MeSeCH2CH2)2O)Cl3] exhibited catalytic activity in the ethylene oligomerization reaction.
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