{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T06:27:11Z","timestamp":1770704831533,"version":"3.49.0"},"reference-count":66,"publisher":"Wiley","issue":"24","license":[{"start":{"date-parts":[[2016,7,27]],"date-time":"2016-07-27T00:00:00Z","timestamp":1469577600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100005728","name":"University of Salento","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100005728","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Eur J Inorg Chem"],"published-print":{"date-parts":[[2016,8]]},"abstract":"<jats:p>In this work, we show by a simple empirical approach that a linear relationship between observed <jats:sup>195<\/jats:sup>Pt NMR frequencies and the overall sum of the ionic radii of the coordinated halido ligands [\u03a3(<jats:italic>r<\/jats:italic><jats:sub>h<\/jats:sub>)] exists in square\u2010planar Pt<jats:sup>II<\/jats:sup> complexes of the type [PtX<jats:italic><jats:sub>n<\/jats:sub><\/jats:italic>Y<jats:sub>4\u2013<jats:italic>n<\/jats:italic><\/jats:sub>]<jats:sup>2\u2013<\/jats:sup> (1\u2009\u2264\u2009<jats:italic>n<\/jats:italic>\u2009\u2264\u20094; X,\u2009Y = Cl, Br, I). Another finding was that such square\u2010planar complexes could be empirically described as octahedral complexes, with the two lobes of the 5d<jats:sub><jats:italic>z<\/jats:italic>\u00b2<\/jats:sub> orbital above and below the coordination plane acting as two pseudo\u2010halido ligands, each showing a constant apparent radius of around 207 pm. According to our approach, the overall apparent radius of around 415 pm produces constant <jats:sup>195<\/jats:sup>Pt NMR shielding for all [PtX<jats:italic><jats:sub>n<\/jats:sub><\/jats:italic>Y<jats:sub>4\u2013<jats:italic>n<\/jats:italic><\/jats:sub>]<jats:sup>2\u2013<\/jats:sup> complexes of about 10450 ppm. This result is 1) consistent with the theoretically calculated overall 5d shell lone\u2010pair shielding observed in square\u2010planar Pt<jats:sup>II<\/jats:sup> with respect to octahedral Pt<jats:sup>IV<\/jats:sup> complexes and 2) almost coincident with the already measured chemical shift anisotropy (CSA) of the K<jats:sub>2<\/jats:sub>[PtCl<jats:sub>4<\/jats:sub>] complex both in solution and in the solid state (single crystal).<\/jats:p>","DOI":"10.1002\/ejic.201600573","type":"journal-article","created":{"date-parts":[[2016,7,27]],"date-time":"2016-07-27T07:09:07Z","timestamp":1469603347000},"page":"3957-3962","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Square\u2010Planar Pt<sup>II<\/sup> versus Octahedral Pt<sup>IV<\/sup> Halido Complexes: <sup>195<\/sup>Pt NMR Explained by a Simple Empirical Approach"],"prefix":"10.1002","volume":"2016","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9936-9649","authenticated-orcid":false,"given":"Michele","family":"Benedetti","sequence":"first","affiliation":[{"name":"Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali Universit\u00e0 del Salento Via Monteroni 73100 Lecce Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5060-293X","authenticated-orcid":false,"given":"Federica","family":"De Castro","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali Universit\u00e0 del Salento Via Monteroni 73100 Lecce Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3073-5772","authenticated-orcid":false,"given":"Francesco P.","family":"Fanizzi","sequence":"additional","affiliation":[{"name":"Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali Universit\u00e0 del Salento Via Monteroni 73100 Lecce Italy"}]}],"member":"311","published-online":{"date-parts":[[2016,7,27]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRev.81.20"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/hlca.660510419"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0010-8545(00)80523-8"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0066-4103(08)60238-0"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1039\/j19680001970"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1039\/j19680003047"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1021\/ic50226a074"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0020-1650(81)80062-1"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-94-011-1652-7"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-3765(199801)4:1<118::AID-CHEM118>3.0.CO;2-6"},{"key":"e_1_2_6_12_1","volume-title":"Calculation of Heavy\u2010Nucleus Chemical Shifts: Relativistic All\u2010Electron Methods, Calculation of NMR and EPR Parameters. 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