{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,14]],"date-time":"2025-10-14T00:59:18Z","timestamp":1760403558863,"version":"build-2065373602"},"reference-count":53,"publisher":"Wiley","issue":"11-12","license":[{"start":{"date-parts":[[2019,10,23]],"date-time":"2019-10-23T00:00:00Z","timestamp":1571788800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100004955","name":"Austrian Research Promotion Agency","doi-asserted-by":"publisher","award":["P28866\u2010N34"],"award-info":[{"award-number":["P28866\u2010N34"]}],"id":[{"id":"10.13039\/501100004955","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":[[2020,3,27]]},"abstract":"<jats:p>Fe(I) PNP pincer complexes of the type [Fe(PNP<jats:sup>NH<\/jats:sup>)(CO)<jats:sub>2<\/jats:sub>]<jats:sup>+<\/jats:sup> were prepared by treatment of the Fe(II) complexes [Fe(PNP<jats:sup>NH<\/jats:sup>)(CO)(Cl)<jats:sub>2<\/jats:sub>] with KO<jats:italic>t<\/jats:italic>Bu in an aprotic solvent. The outcome of these reactions is independent of whether it is carried out under a CO atmosphere or not. The <jats:italic>tert<\/jats:italic>\u2010butyl analog [Fe(PNP<jats:sup>NH<\/jats:sup>\u2010<jats:italic>t<\/jats:italic>Bu)(CO)<jats:sub>2<\/jats:sub>]Cl was obtained in a similar fashion but with [Fe(PNP<jats:sup>NH<\/jats:sup>\u2010<jats:italic>t<\/jats:italic>Bu)(Cl)<jats:sub>2<\/jats:sub>] as starting material in the presence of CO. In all these reactions the formation of free PNP ligand together with unknown Fe(III) species is presumably due to a 2Fe<jats:sup>II<\/jats:sup> \u2192 Fe<jats:sup>I<\/jats:sup> and Fe<jats:sup>III<\/jats:sup> disproportionation process. The cationic complexes could be deprotonated upon treatment with KO<jats:italic>t<\/jats:italic>Bu affording the neutral complexes [Fe(PNP<jats:sup>N<\/jats:sup>)(CO)<jats:sub>2<\/jats:sub>]. All compounds are low\u2010spin complexes as established by their solution effective magnetic moments, X\u2010band EPR spectra as well as DFT calculations. The solid\u2010state structures of two representative cationic and neutral complexes, respectively, were determined by single\u2010crystal X\u2010ray diffraction.<\/jats:p>","DOI":"10.1002\/ejic.201900895","type":"journal-article","created":{"date-parts":[[2019,10,8]],"date-time":"2019-10-08T11:01:16Z","timestamp":1570532476000},"page":"1101-1105","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Base\u2010Initiated Formation of Fe<sup>I<\/sup>\u2013PNP Pincer Complexes"],"prefix":"10.1002","volume":"2020","author":[{"given":"Mathias","family":"Glatz","sequence":"first","affiliation":[{"name":"Institute of Applied Synthetic Chemistry Vienna University of Technology  Getreidemarkt 9, A \u20101060 Vienna Austria"}]},{"given":"Berthold","family":"St\u00f6ger","sequence":"additional","affiliation":[{"name":"X\u2010ray Center Vienna University of Technology  Getreidemarkt 9, A \u20101060 Vienna Austria"}]},{"given":"Bernhard","family":"Bichler","sequence":"additional","affiliation":[{"name":"Institute of Applied Synthetic Chemistry Vienna University of Technology  Getreidemarkt 9, A \u20101060 Vienna Austria"}]},{"given":"Gerald","family":"Bauer","sequence":"additional","affiliation":[{"name":"Institute of Applied Synthetic Chemistry Vienna University of Technology  Getreidemarkt 9, A \u20101060 Vienna Austria"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5841-3519","authenticated-orcid":false,"given":"Luis F.","family":"Veiros","sequence":"additional","affiliation":[{"name":"Centro de Qu\u00edmica Estrutural Instituto Superior T\u00e9cnico Universidade de Lisboa  Av. 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