Synthesis and Crystal Structure of N-phenylthiocyano-phenyl-thioformamide-bis(η5-methylcyclopentadie

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The insertion reaction of phenyl isothiocyanate into the Ln-S bond was studied. Phenyl isothiocyanate reacted with [(CH3C5H4)2Sm(SPh)(THF)]2 to give the title complex, (CH3C5H4)2Sm[SC(SPh)NPh](THF), in good yield, which was characterized by elemental analyses, IR, 1H NMR and X-ray structural determination. The crystal structure analysis of complex shows that samarium atom is coordinated by two CH3C5H4 groups, one O atom of THF, and N and S atoms from the SC(SPh)NPh ligand to form a distorted trigonal-bipyramidal geometry.
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