{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T03:51:31Z","timestamp":1788925891212,"version":"build-2803163510"},"reference-count":42,"publisher":"Wiley","issue":"25","license":[{"start":{"date-parts":[[2006,6,21]],"date-time":"2006-06-21T00:00:00Z","timestamp":1150848000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2006,8,25]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Coordination of FeCl<jats:sub>3<\/jats:sub> to the title ligand yields a mononuclear iron(<jats:sc>III<\/jats:sc>) complex <jats:bold>1<\/jats:bold>, which was characterized by spectroscopic techniques and X\u2010ray diffraction. The ligand is (\u03ba<jats:sup><jats:italic>3<\/jats:italic><\/jats:sup><jats:italic>\u2010N<\/jats:italic>) tridentate and the metal, which lies in a pseudo\u2010octahedral environment, is bound to a phenolate group from the catechol substituent. The dichloroiron(<jats:sc>II<\/jats:sc>) complex <jats:bold>2<\/jats:bold> was easily obtained by metalation of the ligand with FeCl<jats:sub>2<\/jats:sub> and characterized by various spectroscopic techniques. In their cyclic voltammograms both <jats:bold>1<\/jats:bold> and <jats:bold>2<\/jats:bold> display the same reversible Fe<jats:sup>II\/<\/jats:sup>Fe<jats:sup>III<\/jats:sup> wave at <jats:italic>E<\/jats:italic><jats:sub>1\/2<\/jats:sub>=10 mV (vs. SCE). Reduction of compound <jats:bold>1<\/jats:bold> with Zn\/Hg yields <jats:bold>2\u2032<\/jats:bold>, which displays identical properties to <jats:bold>2<\/jats:bold>. Taken together, these findings indicate that in spite of the different oxidation state of the metal in <jats:bold>2<\/jats:bold>, no major geometrical\/structural change is observed at the metal center with respect to <jats:bold>1<\/jats:bold>. The reaction of <jats:bold>2<\/jats:bold> with dioxygen in the absence of organic substrates proceeds extremely rapidly and yields compound <jats:bold>3<\/jats:bold>, which is a diiron(<jats:sc>III<\/jats:sc>) derivative whose X\u2010ray crystal structure is also reported. The possibility of a radical\u2010based mechanism is discussed. Compound <jats:bold>3<\/jats:bold> displays an unusual geometry: one iron(<jats:sc>III<\/jats:sc>) center is seven\u2010coordinate, whereas the other lies in a square\u2010pyramidal environment. The two iron atoms are bridged by the catecholato substituents. To the best of our knowledge, <jats:bold>3<\/jats:bold> is the first example of a seven\u2010coordinate iron(<jats:sc>III<\/jats:sc>) derivative with tris(2\u2010pyridylmethyl)amine ligands.<\/jats:p>","DOI":"10.1002\/chem.200600276","type":"journal-article","created":{"date-parts":[[2006,6,21]],"date-time":"2006-06-21T09:05:25Z","timestamp":1150880725000},"page":"6660-6668","source":"Crossref","is-referenced-by-count":59,"title":["The Coordination Chemistry of FeCl<sub>3<\/sub> and FeCl<sub>2<\/sub> to Bis[2\u2010(2,3\u2010dihydroxyphenyl)\u20106\u2010pyridylmethyl](2\u2010pyridylmethyl)amine: Access to a Diiron(<scp>III<\/scp>) Compound with an Unusual Pentagonal\u2010Bipyramidal\/Square\u2010Pyramidal Environment"],"prefix":"10.1002","volume":"12","author":[{"given":"Ahmed","family":"Machkour","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nasser K.","family":"Thallaj","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laila","family":"Benhamou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammed","family":"Lachkar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dominique","family":"Mandon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,8,15]]},"reference":[{"key":"e_1_2_5_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.poly.2004.10.012"},{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja9638521"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja010310x"},{"key":"e_1_2_5_4_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja028478l"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic960942y"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1246\/cl.1995.61"},{"key":"e_1_2_5_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-3757(19980803)110:15<2198::AID-ANGE2198>3.0.CO;2-H"},{"key":"e_1_2_5_7_3","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-3773(19980817)37:15<2102::AID-ANIE2102>3.0.CO;2-A"},{"key":"e_1_2_5_8_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic0508122"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.1039\/b000092m"},{"key":"e_1_2_5_10_2","doi-asserted-by":"publisher","DOI":"10.1039\/b207406k"},{"key":"e_1_2_5_11_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.200390007"},{"key":"e_1_2_5_12_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic971105e"},{"key":"e_1_2_5_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0010-8545(00)00320-9"},{"key":"e_1_2_5_14_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr020628n"},{"key":"e_1_2_5_15_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr9900275"},{"key":"e_1_2_5_16_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja00024a028"},{"key":"e_1_2_5_17_2","first-page":"1428","volume":"20","author":"Lim J. 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