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Iron; Vinyl selenocarboxylate; Substitution reactions; Structures

Vinyl selenocarboxylato iron complexes of the formula CpFe(CO)₂SeCOCH=C(R1)(R2) {R1 = H, R2 = Me, R1 = R2 = Me, R1 = H, R2 = CH=CHMe} are synthesized by the reaction of (l-Se)[CpFe(CO)₂]₂ with the corresponding vinyl acid chlorides ClCOCH=C(R1)(R2). Photolytic substitutionsof CpFe(CO)₂SeCOCH=CMe₂ with EPh₃ gave the monosubstituted complexes CpFe(CO)(EPh₃)-SeCOCH=CMe₂ (E = P, As, Sb) in good yields. The new complexes have been characterized by UV-Vis, IR,¹H-NMR, ¹³C{¹H}-NMR, ⁷⁷Se{¹H}-NMR, ³¹P{¹H}-NMR spectroscopy and elemental analysis. The solidstate structures of CpFe(CO)₂SeCOCH=CMe₂ and CpFe(CO) AsPh₃)SeCOCH=CMe₂ were determined by X-ray crystallography. The cyclic voltammetric measurements of CpFe(CO)₂SeCOCH=CMe₂ were recorded.

TAGHREED AL-JAZZAZI¹ MOHAMMAD EL-KHATEEB² LAMA QURAAN¹ HASSAN ABUL-FUTOUH³ HELMAR GORLS⁴ WOLFGANG WEIGAND⁴

1. Chemistry Department, Yarmouk University, Irbid 21163, Jordan
2. Chemistry Department, Jordan University of Science and Technology, Irbid 22110, Jordan
3. Department of Pharmacy, Al-Zaytoonah University of Jordan, P.O. Box 130, Amman 11733, Jordan
4. Institut fu¨ r Anorganische und Analytische Chemie, Friedrich-Schiller-Universita¨t Jena, Humboldt Str. 8, 07743 Jena, Germany

Published

22 January 2020

Manuscript received

30 August 2019

Manuscript revised

8 October 2019

Accepted

9 October 2019