Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite Ligands

Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite Ligands

The synthesis of a series of arene-osmium(II) complexes containing phosphinite-type ligands, namely, [OsCl<sub>2</sub>(<i>&#951;</i><sup>6</sup>-<i>p</i>-cymene){R<sub>2</sub>PO(CH<sub>2</sub>)<sub>n</sub>Ph}] (R...

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Main Authors: Rebeca González-Fernández, Javier Borge, Pascale Crochet, Victorio Cadierno
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Molbank
Subjects:
organometallic compounds
osmium complexes
phosphinite ligands
half-sandwich complexes
Online Access:https://www.mdpi.com/1422-8599/2020/1/M1110
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spelling doaj-2e3a86590c8540cc931189d5ada5355f2020-11-25T02:45:08ZengMDPI AGMolbank1422-85992020-01-0120201M111010.3390/M1110M1110Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite LigandsRebeca González-Fernández0Javier Borge1Pascale Crochet2Victorio Cadierno3Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, IUQOEM, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, SpainDepartamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, SpainLaboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, IUQOEM, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, SpainLaboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, IUQOEM, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, SpainThe synthesis of a series of arene-osmium(II) complexes containing phosphinite-type ligands, namely, [OsCl<sub>2</sub>(<i>&#951;</i><sup>6</sup>-<i>p</i>-cymene){R<sub>2</sub>PO(CH<sub>2</sub>)<sub>n</sub>Ph}] (R = Ph, n = 1 (<b>4a</b>), 2 (<b>4b</b>), 3 (<b>4c</b>); R = <sup>i</sup>Pr, n = 1 (<b>5a</b>), 2 (<b>5b</b>), 3 (<b>5c</b>)) and [OsCl<sub>2</sub>(<i>&#951;</i><sup>6</sup>-benzene){<sup>i</sup>Pr<sub>2</sub>PO(CH<sub>2</sub>)<sub>2</sub>Ph}] (<b>7</b>), is presented. All these compounds were characterized by elemental analysis and multinuclear NMR spectroscopy (<sup>31</sup>P{<sup>1</sup>H}, <sup>1</sup>H and <sup>13</sup>C{<sup>1</sup>H}), and the structure of [OsCl<sub>2</sub>(<i>&#951;</i><sup>6</sup>-<i>p</i>-cymene){Ph<sub>2</sub>PO(CH<sub>2</sub>)<sub>3</sub>Ph}] (<b>4c</b>) unequivocally confirmed through a single-crystal X-ray diffraction study. Attempts to generate the tethered species [OsCl<sub>2</sub>{<i>&#951;</i><sup>6</sup>:<i>&#954;</i><sup>1</sup>(<i>P</i>)-C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>n</sub>OPR<sub>2</sub>}] by intramolecular exchange of the coordinated arene in <b>4-5a-c</b> or <b>7</b>, upon thermal or MW heating, failed.https://www.mdpi.com/1422-8599/2020/1/M1110organometallic compoundsosmium complexesphosphinite ligandshalf-sandwich complexes
collection DOAJ
language English
format Article
sources DOAJ
author Rebeca González-Fernández
Javier Borge
Pascale Crochet
Victorio Cadierno
spellingShingle Rebeca González-Fernández
Javier Borge
Pascale Crochet
Victorio Cadierno
Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite Ligands
Molbank
organometallic compounds
osmium complexes
phosphinite ligands
half-sandwich complexes
author_facet Rebeca González-Fernández
Javier Borge
Pascale Crochet
Victorio Cadierno
author_sort Rebeca González-Fernández
title Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite Ligands
title_short Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite Ligands
title_full Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite Ligands
title_fullStr Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite Ligands
title_full_unstemmed Half-Sandwich Arene-Osmium(II) Complexes with Phosphinite Ligands
title_sort half-sandwich arene-osmium(ii) complexes with phosphinite ligands
publisher MDPI AG
series Molbank
issn 1422-8599
publishDate 2020-01-01
description The synthesis of a series of arene-osmium(II) complexes containing phosphinite-type ligands, namely, [OsCl<sub>2</sub>(<i>&#951;</i><sup>6</sup>-<i>p</i>-cymene){R<sub>2</sub>PO(CH<sub>2</sub>)<sub>n</sub>Ph}] (R = Ph, n = 1 (<b>4a</b>), 2 (<b>4b</b>), 3 (<b>4c</b>); R = <sup>i</sup>Pr, n = 1 (<b>5a</b>), 2 (<b>5b</b>), 3 (<b>5c</b>)) and [OsCl<sub>2</sub>(<i>&#951;</i><sup>6</sup>-benzene){<sup>i</sup>Pr<sub>2</sub>PO(CH<sub>2</sub>)<sub>2</sub>Ph}] (<b>7</b>), is presented. All these compounds were characterized by elemental analysis and multinuclear NMR spectroscopy (<sup>31</sup>P{<sup>1</sup>H}, <sup>1</sup>H and <sup>13</sup>C{<sup>1</sup>H}), and the structure of [OsCl<sub>2</sub>(<i>&#951;</i><sup>6</sup>-<i>p</i>-cymene){Ph<sub>2</sub>PO(CH<sub>2</sub>)<sub>3</sub>Ph}] (<b>4c</b>) unequivocally confirmed through a single-crystal X-ray diffraction study. Attempts to generate the tethered species [OsCl<sub>2</sub>{<i>&#951;</i><sup>6</sup>:<i>&#954;</i><sup>1</sup>(<i>P</i>)-C<sub>6</sub>H<sub>5</sub>(CH<sub>2</sub>)<sub>n</sub>OPR<sub>2</sub>}] by intramolecular exchange of the coordinated arene in <b>4-5a-c</b> or <b>7</b>, upon thermal or MW heating, failed.
topic organometallic compounds
osmium complexes
phosphinite ligands
half-sandwich complexes
url https://www.mdpi.com/1422-8599/2020/1/M1110
work_keys_str_mv AT rebecagonzalezfernandez halfsandwichareneosmiumiicomplexeswithphosphiniteligands
AT javierborge halfsandwichareneosmiumiicomplexeswithphosphiniteligands
AT pascalecrochet halfsandwichareneosmiumiicomplexeswithphosphiniteligands
AT victoriocadierno halfsandwichareneosmiumiicomplexeswithphosphiniteligands
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