{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T19:17:39Z","timestamp":1787771859291,"version":"build-2784847793"},"reference-count":73,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2020,7,25]],"date-time":"2020-07-25T00:00:00Z","timestamp":1595635200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>A novel series of mononuclear five-coordinated pseudohalido-Cu(II) complexes displaying distorted square bipyramidal: [Cu(L1)(NCS)2] (1), [Cu(L2)(NCS)2] (2) and [Cu(L3)(NCS)]ClO4 (5) as well as distorted trigonal bipyramidal: [Cu(isp3tren)(N3)]ClO4 (3), [Cu(isp3tren)(dca)]ClO4 (4) and [Cu(tedmpza)(dca)]ClO4\u00b70.67H2O (6) 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 N-donor amine skeletons including tridentate: L1 = [(2-pyridyl)-2-ethyl)-(3,4-dimethoxy)-2-methylpyridyl]methylamine and L2 = [(2-pyridyl)-2-ethyl)-(3,5-dimethyl-4-methoxy)-2-methyl-pyridyl]methylamine, and tetradentate: L3 = bis(2-ethyl-di(3,5-dimethyl-1H-pyrazol-1-yl)-[2-(3,4-dimethoxy-pyridylmethyl)]amine, tedmpza = tris[(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl]amine and isp3tren = 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.<\/jats:p>","DOI":"10.3390\/molecules25153376","type":"journal-article","created":{"date-parts":[[2020,7,27]],"date-time":"2020-07-27T09:24:49Z","timestamp":1595841889000},"page":"3376","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Five-Coordinated Geometries from Molecular Structures to Solutions in Copper(II) Complexes Generated from Polydentate-N-Donor Ligands and Pseudohalides"],"prefix":"10.3390","volume":"25","author":[{"given":"Franz A.","family":"Mautner","sequence":"first","affiliation":[{"name":"Institut f\u00fcr Physikalische und Theoretische Chemie, Technische Universit\u00e4t Graz, Stremayrgasse 9, A-8010 Graz, Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9523-5010","authenticated-orcid":false,"given":"Roland C.","family":"Fischer","sequence":"additional","affiliation":[{"name":"Institut f\u00fcr Anorganische Chemie, Technische Universit\u00e4t Graz, Stremayrgasse 9, A-8010 Graz, Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6203-7330","authenticated-orcid":false,"given":"Ana","family":"Torvisco","sequence":"additional","affiliation":[{"name":"Institut f\u00fcr Anorganische Chemie, Technische Universit\u00e4t Graz, Stremayrgasse 9, A-8010 Graz, Austria"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maher M.","family":"Henary","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095-1569, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Febee R.","family":"Louka","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Louisiana at Lafayette, P.O. 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