Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-<i>N</i>-Donor Ligands and Pseudohalides
A novel series of mononuclear five-coordinated pseudohalido-Cu(II) complexes displaying distorted square bipyramidal: [Cu(L<sup>1</sup>)(NCS)<sub>2</sub>] (<b>1</b>), [Cu(L<sup>2</sup>)(NCS)<sub>2</sub>] (<b>2</b>) and [Cu(L<...
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MDPI AG
2020-07-01
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| Online Access: | https://www.mdpi.com/1420-3049/25/15/3376 |
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| author | Franz A. Mautner Roland C. Fischer Ana Torvisco Maher M. Henary Febee R. Louka Salah S. Massoud Nahed M. H. Salem |
| author_facet | Franz A. Mautner Roland C. Fischer Ana Torvisco Maher M. Henary Febee R. Louka Salah S. Massoud Nahed M. H. Salem |
| author_sort | Franz A. Mautner |
| collection | DOAJ |
| description | A novel series of mononuclear five-coordinated pseudohalido-Cu(II) complexes displaying distorted square bipyramidal: [Cu(L<sup>1</sup>)(NCS)<sub>2</sub>] (<b>1</b>), [Cu(L<sup>2</sup>)(NCS)<sub>2</sub>] (<b>2</b>) and [Cu(L<sup>3</sup>)(NCS)]ClO<sub>4</sub> (<b>5</b>) as well as distorted trigonal bipyramidal: [Cu(isp<sub>3</sub>tren)(N<sub>3</sub>)]ClO<sub>4</sub> (<b>3</b>), [Cu(isp<sub>3</sub>tren)(dca)]ClO<sub>4</sub> (<b>4</b>) and [Cu(tedmpza)(dca)]ClO<sub>4</sub>·0.67H<sub>2</sub>O (<b>6</b>) geometries had been synthesized and structurally characterized using X-ray single crystal crystallography, elemental microanalysis, IR and UV-vis spectroscopy, and molar conductivity measurements. Different <i>N</i>-donor amine skeletons including tridentate: L<sup>1</sup> = [(2-pyridyl)-2-ethyl)-(3,4-dimethoxy)-2-methylpyridyl]methylamine and L<sup>2</sup> = [(2-pyridyl)-2-ethyl)-(3,5-dimethyl-4-methoxy)-2-methyl-pyridyl]methylamine, and tetradentate: L<sup>3</sup> = bis(2-ethyl-di(3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)-[2-(3,4-dimethoxy-pyridylmethyl)]amine, tedmpza = tris[(2-(3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)ethyl]amine and isp<sub>3</sub>tren = tris[(2-isopropylamino)ethyl)]amine ligands were employed. Molecular structural parameters such as nature of coligand, its chelate ring size and steric environment incorporated into its skeleton, which lead to adopting one of the two limiting geometries in these complexes and other reported compounds are analyzed and correlated to their assigned geometries in solutions. Similar analysis were extended to other five-coordinated halido-Cu(II) complexes. |
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| spelling | doaj.art-c1dd66fbe81c496d9cd0352c984fc7122023-11-20T07:55:20ZengMDPI AGMolecules1420-30492020-07-012515337610.3390/molecules25153376Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-<i>N</i>-Donor Ligands and PseudohalidesFranz A. Mautner0Roland C. Fischer1Ana Torvisco2Maher M. Henary3Febee R. Louka4Salah S. Massoud5Nahed M. H. Salem6Institut für Physikalische und Theoretische Chemie, Technische Universität Graz, Stremayrgasse 9, A-8010 Graz, AustriaInstitut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, A-8010 Graz, AustriaInstitut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, A-8010 Graz, AustriaDepartment of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USADepartment of Chemistry, University of Louisiana at Lafayette, P.O. Box 43700, Lafayette, LA 70504, USADepartment of Chemistry, University of Louisiana at Lafayette, P.O. Box 43700, Lafayette, LA 70504, USADepartment of Chemistry, Faculty of Science, Alexandria University, Moharam Bey, Alexandria 21511, EgyptA novel series of mononuclear five-coordinated pseudohalido-Cu(II) complexes displaying distorted square bipyramidal: [Cu(L<sup>1</sup>)(NCS)<sub>2</sub>] (<b>1</b>), [Cu(L<sup>2</sup>)(NCS)<sub>2</sub>] (<b>2</b>) and [Cu(L<sup>3</sup>)(NCS)]ClO<sub>4</sub> (<b>5</b>) as well as distorted trigonal bipyramidal: [Cu(isp<sub>3</sub>tren)(N<sub>3</sub>)]ClO<sub>4</sub> (<b>3</b>), [Cu(isp<sub>3</sub>tren)(dca)]ClO<sub>4</sub> (<b>4</b>) and [Cu(tedmpza)(dca)]ClO<sub>4</sub>·0.67H<sub>2</sub>O (<b>6</b>) geometries had been synthesized and structurally characterized using X-ray single crystal crystallography, elemental microanalysis, IR and UV-vis spectroscopy, and molar conductivity measurements. Different <i>N</i>-donor amine skeletons including tridentate: L<sup>1</sup> = [(2-pyridyl)-2-ethyl)-(3,4-dimethoxy)-2-methylpyridyl]methylamine and L<sup>2</sup> = [(2-pyridyl)-2-ethyl)-(3,5-dimethyl-4-methoxy)-2-methyl-pyridyl]methylamine, and tetradentate: L<sup>3</sup> = bis(2-ethyl-di(3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)-[2-(3,4-dimethoxy-pyridylmethyl)]amine, tedmpza = tris[(2-(3,5-dimethyl-1<i>H</i>-pyrazol-1-yl)ethyl]amine and isp<sub>3</sub>tren = tris[(2-isopropylamino)ethyl)]amine ligands were employed. Molecular structural parameters such as nature of coligand, its chelate ring size and steric environment incorporated into its skeleton, which lead to adopting one of the two limiting geometries in these complexes and other reported compounds are analyzed and correlated to their assigned geometries in solutions. Similar analysis were extended to other five-coordinated halido-Cu(II) complexes.https://www.mdpi.com/1420-3049/25/15/3376coppercrystal structureisothiocyanateazidedicyanamidefive-coordinated |
| spellingShingle | Franz A. Mautner Roland C. Fischer Ana Torvisco Maher M. Henary Febee R. Louka Salah S. Massoud Nahed M. H. Salem Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-<i>N</i>-Donor Ligands and Pseudohalides Molecules copper crystal structure isothiocyanate azide dicyanamide five-coordinated |
| title | Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-<i>N</i>-Donor Ligands and Pseudohalides |
| title_full | Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-<i>N</i>-Donor Ligands and Pseudohalides |
| title_fullStr | Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-<i>N</i>-Donor Ligands and Pseudohalides |
| title_full_unstemmed | Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-<i>N</i>-Donor Ligands and Pseudohalides |
| title_short | Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-<i>N</i>-Donor Ligands and Pseudohalides |
| title_sort | five coordinated geometries from molecular structures to solutions in copper ii complexes generated from polydentate i n i donor ligands and pseudohalides |
| topic | copper crystal structure isothiocyanate azide dicyanamide five-coordinated |
| url | https://www.mdpi.com/1420-3049/25/15/3376 |
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