{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T21:49:36Z","timestamp":1740174576632,"version":"3.37.3"},"reference-count":24,"publisher":"International Union of Crystallography (IUCr)","issue":"5","license":[{"start":{"date-parts":[[2018,4,6]],"date-time":"2018-04-06T00:00:00Z","timestamp":1522972800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/legalcode"},{"start":{"date-parts":[[2018,4,6]],"date-time":"2018-04-06T00:00:00Z","timestamp":1522972800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/legalcode"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr E Cryst Commun","Acta Cryst E","Acta Cryst Sect E","Acta Crystallogr E","Acta Crystallogr Sect E","Acta Cryst E Cryst Commun","Acta Cryst Sect E Cryst Commun"],"published-print":{"date-parts":[[2018,5,1]]},"abstract":"<jats:p>After the successful creation of the newly designed PCP carbodiphosphorane (CDP) ligand [Reitsamer <jats:italic>et al.<\/jats:italic> (2012). <jats:italic>Dalton Trans.<\/jats:italic> \n                  <jats:bold>41<\/jats:bold>, 3503\u20133514; Stallinger <jats:italic>et al.<\/jats:italic> (2007). <jats:italic>Chem. Commun.<\/jats:italic> pp. 510\u2013512], the treatment of this PCP pincer system with the transition metal iridium and further the analysis of the structures by single-crystal diffraction and by NMR spectroscopy were of major interest. Two different iridium complexes, namely (bis{[(diphenylphosphanyl)methyl]diphenylphosphanylidene}methane-\u03ba<jats:sup>3<\/jats:sup>\n                  <jats:italic>P<\/jats:italic>,<jats:italic>C<\/jats:italic>,<jats:italic>P<\/jats:italic>\u2032)carbonylchloridohydridoiridium(III) chloride dichloromethane trisolvate, [Ir<jats:sup>III<\/jats:sup>(CO){C(dppm)<jats:sub>2<\/jats:sub>-\u03ba<jats:sup>3<\/jats:sup>\n                  <jats:italic>P<\/jats:italic>,<jats:italic>C<\/jats:italic>,<jats:italic>P<\/jats:italic>\u2032}ClH]Cl\u00b73CH<jats:sub>2<\/jats:sub>Cl<jats:sub>2<\/jats:sub> (<jats:bold>1<\/jats:bold>) and the closely related (bis{[(diphenylphosphanyl)methyl]diphenylphosphanylidene}methanide(1+)-\u03ba<jats:sup>3<\/jats:sup>\n                  <jats:italic>P<\/jats:italic>,<jats:italic>C<\/jats:italic>,<jats:italic>P<\/jats:italic>\u2032)carbonylchloridohydridoiridium(III) dichloride\u2013hydrochloric acid\u2013water (1\/2\/5.5), [Ir<jats:sup>III<\/jats:sup>(CO){CH(dppm)<jats:sub>2<\/jats:sub>-\u03ba<jats:sup>3<\/jats:sup>\n                  <jats:italic>P<\/jats:italic>,<jats:italic>C<\/jats:italic>,<jats:italic>P<\/jats:italic>\u2032)ClH]Cl}<jats:sub>2<\/jats:sub> (<jats:bold>2<\/jats:bold>), have been designed and both complexes show a slightly distorted octahedral coordinated Ir<jats:sup>III<\/jats:sup> centre. The PCP pincer ligand system is arranged in a <jats:italic>meridional<\/jats:italic> manner, the CO ligand is located <jats:italic>trans<\/jats:italic> to the central PCP carbon and a hydride and chloride are located perpendicular above and below the P<jats:sub>2<\/jats:sub>C<jats:sub>2<\/jats:sub> plane. With an Ir\u2014C<jats:sub>CDP<\/jats:sub> distance of 2.157\u2005(5)\u2005\u00c5, an Ir\u2014CO distance of 1.891\u2005(6)\u2005\u00c5 and a quite short C\u2014O distance of 1.117\u2005(7)\u2005\u00c5, complex <jats:bold>1<\/jats:bold> presents a strong carbonyl bond. Complex <jats:bold>2<\/jats:bold>, the corresponding CH acid of <jats:bold>1<\/jats:bold>, shows an additionally attached proton at the carbodiphosphorane carbon atom located <jats:italic>antiperiplanar<\/jats:italic> to the hydride of the metal centre. In comparison with complex <jats:bold>1<\/jats:bold>, the Ir\u2014C<jats:sub>CDP<\/jats:sub> distance of 2.207\u2005(3)\u2005\u00c5 is lengthened and the Ir\u2014C\u2014O values indicate a weaker <jats:italic>trans<\/jats:italic> influence of the central carbodiphosphorane carbon atom.<\/jats:p>","DOI":"10.1107\/s2056989018004905","type":"journal-article","created":{"date-parts":[[2018,4,6]],"date-time":"2018-04-06T10:05:21Z","timestamp":1523009121000},"page":"620-624","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":2,"title":["Crystal structure of an iridium(III) complex of the [C(dppm)<sub>2<\/sub>] PCP pincer ligand system and its conjugate CH acid form"],"prefix":"10.1107","volume":"74","author":[{"given":"Christian","family":"Reitsamer","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Inge","family":"Schlapp-Hackl","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5666-9454","authenticated-orcid":true,"given":"Gabriel","family":"Partl","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Walter","family":"Schuh","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0396-7917","authenticated-orcid":true,"given":"Holger","family":"Kopacka","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Klaus","family":"Wurst","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul","family":"Peringer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2018,4,6]]},"reference":[{"key":"eb2007_bb1","doi-asserted-by":"crossref","first-page":"689","DOI":"10.1021\/om1008633","volume":"30","author":"Adams","year":"2011","journal-title":"Organometallics"},{"key":"eb2007_bb2","doi-asserted-by":"crossref","first-page":"6578","DOI":"10.1021\/om900723s","volume":"28","author":"Azerraf","year":"2009","journal-title":"Organometallics"},{"unstructured":"Cambridge Soft (2001). 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