A new series of zirconium metallocenes derived from partially alkylated s-indacene with potential applications in the polymerization of ethylene

Araneda, Juan F.; Morales-Verdejo, César; Adams, Christopher; Martínez-Díaz, Iván; Chávez, Ivonne; Garland, Marı́a Teresa; Rojas, René S.; Molins, Elı́es; Manríquez, J.

doi:10.1016/j.ica.2015.05.011

Cited by 4 publications

(1 citation statement)

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“…The compound so produced was reported earlier by the Manriquez group. The characterisation of this compound matches well with the reported findings [18][19]. This mono iron organometallic complex was further treated with two mole equivalent of n-butyl lithium and with one equivalent of anhydrous CoCl2 affording the brown colour solution.…”

Section: Synthesis and Characterisation Of [(ƞ 5 -L1) Fe(ƞ 5 -L1)co] (2)supporting

confidence: 87%

Syntheses and magnetic properties of substituted bis-indacenyl bi-metallic complexes & application

et al. 2022

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Organometallic compounds, Bis (2,4,6,8 teramethyl-indacenyl) di Iron (1), Bis (2,4,6,8 teramethyl s-indacenyl) mono iron, mono cobalt (2), and Bis (2,6 diethyl-4,8-dimethyl-s-indacenyl) di cobalt (3) were synthesised by means of salt elimination strategy, using Fe(II) and Co(II) salts. The compounds were characterised through spectroscopic and electrochemical methods. Magnetic measurements were carried out by Physical Property Measurement System (PPMS). Mossbauer spectroscopic data reveals that in all compounds, surprisingly, Iron is in +3 oxidation state. DFT calculations have been carried out to understand the change in the oxidation state of a metal. DFT study confirms the electron transfer nature of ligand to metal. Cyclic voltametric study on these compounds shows a large separation (ΔE>800mV) between two oxidation peaks confirming the strong interaction between the metal centres. Magnetic measurements on these organometallic compounds reveals that they exhibit a ferrimagnetic behaviour at temperatures below 40 K.

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Section: Synthesis and Characterisation Of [(ƞ 5 -L1) Fe(ƞ 5 -L1)co] (2)supporting

confidence: 87%