Preparation, characterization and structure determination of CpFe(CO)(EPh3)SeCO-het complexes

The mixed CO/ER3 iron complexes bearing heterocyclic selenocarboxylato group CpFe(CO)(ER3)SeCO-het [het = 2-C4H3S (1), 2-C4H3O (2), CH2-2-C4H3S (3), E = P, R = Ph (a), OC2H5 (b); E = As (c), Sb (d), R = Ph)] are synthesized by the reactions of CpFe(CO)(2)SeCO-het with ER3 under photolytic conditions. The new complexes have been characterized by spectroscopic analysis (UV Vis, lR, H-1, P-31 NMR) and elemental analysis. The structures of CpFe(CO)(PPh3)SeCO-2-C4H3S (1a), CpFe(CO)(AsPh3)SeCO-2-C4H3S (1c) and CpFe(CO)(SbPh3)SeCO-2-C4H3S (1d) have been determined by X-ray crystal structure analysis. (C) 2016 Elsevier B.V. All rights reserved.