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Issue 15, 2018
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Macrocycles containing 1,1′-ferrocenyldiselenolato ligands on group 4 metallocenes

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Abstract

Macrocyclic [Fe(η5-C5H4Se)2M(η5-C5H4R)2]2 [M = Ti (1), Zr (2), Hf (3), R = H; and M = Zr (4), Hf (5), R = tBu] were prepared and characterized by 77Se NMR spectroscopy and the crystal structures of 1–3 and 5 were determined by single-crystal X-ray diffraction. The crystal structure of 4 is known and the complex is isomorphous with 5. 1–5 form mutually similar macrocyclic tetranuclear complexes in which the alternating Fe(C5H4Se)2 and M(C5H4R)2 centers are linked by selenium bridges. The thermogravimetric analysis (TGA) of 1–3 under a helium atmosphere indicated that the complexes undergo a two-step decomposition upon heating. The final products were identified using powder X-ray diffraction as FexMSe2, indicating their potential as single-source precursors for functional materials.

Graphical abstract: Macrocycles containing 1,1′-ferrocenyldiselenolato ligands on group 4 metallocenes

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Publication details

The article was received on 23 Jan 2018, accepted on 09 Mar 2018 and first published on 12 Mar 2018


Article type: Paper
DOI: 10.1039/C8DT00300A
Citation: Dalton Trans., 2018,47, 5415-5421
  • Open access: Creative Commons BY-NC license
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    Macrocycles containing 1,1′-ferrocenyldiselenolato ligands on group 4 metallocenes

    C. Sanchez-Perez, C. E. Knapp, M. M. Karjalainen, R. Oilunkaniemi, C. J. Carmalt and R. S. Laitinen, Dalton Trans., 2018, 47, 5415
    DOI: 10.1039/C8DT00300A

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