{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,1]],"date-time":"2025-11-01T21:30:47Z","timestamp":1762032647165,"version":"build-2065373602"},"reference-count":59,"publisher":"Wiley","issue":"18","license":[{"start":{"date-parts":[[2007,3,16]],"date-time":"2007-03-16T00:00:00Z","timestamp":1174003200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Eur J Inorg Chem"],"published-print":{"date-parts":[[2007,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The Cu<jats:sup>I<\/jats:sup> compound [Cu(PTAH)<jats:sub>4<\/jats:sub>](NO<jats:sub>3<\/jats:sub>)<jats:sub>5<\/jats:sub> (<jats:bold>1<\/jats:bold>) {PTAH = <jats:italic>N<\/jats:italic>\u2010protonated form of 1,3,5\u2010triaza\u20107\u2010phosphaadamantane (PTA)} was easily prepared by reacting hydrated Cu(NO<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub> and PTA in aqueous acidic solution at room temperature. Further treatment of <jats:bold>1<\/jats:bold> with sodium hydroxide in water led to an unprotonated PTA derivative [Cu(PTA)<jats:sub>4<\/jats:sub>](NO<jats:sub>3<\/jats:sub>) (<jats:bold>2<\/jats:bold>). Both compounds are water\u2010soluble and air\u2010stable, and were characterized by IR, <jats:sup>1<\/jats:sup>H\u2010, <jats:sup>13<\/jats:sup>C{<jats:sup>1<\/jats:sup>H}\u2010, <jats:sup>31<\/jats:sup>P{<jats:sup>1<\/jats:sup>H}\u2010 and <jats:sup>63<\/jats:sup>Cu NMR spectroscopy, FAB\u2010MS(+), elemental and single\u2010crystal X\u2010ray diffraction structural analyses. They exhibit a nearly regular tetrahedral coordination environment about each copper centre filled by the phosphorus atoms of the four PTAH\/PTA moieties, which show distinct and unusual geometrical arrangements if viewed along the P\u2013Cu bonds. The <jats:sup>31<\/jats:sup>P{<jats:sup>1<\/jats:sup>H}\u2010 and <jats:sup>63<\/jats:sup>Cu NMR spectra of <jats:bold>2<\/jats:bold> in D<jats:sub>2<\/jats:sub>O solution show spin coupling between the <jats:sup>31<\/jats:sup>P and <jats:sup>63<\/jats:sup>Cu nuclei at room temperature. These compounds represent the first examples of Cu complexes bearing PTA or any derived ligand with a cagelike PTA core and expand the restricted family of aqua\u2010soluble copper phosphane complexes. (\u00a9 Wiley\u2010VCH Verlag GmbH &amp; Co. KGaA, 69451 Weinheim, Germany, 2007)<\/jats:p>","DOI":"10.1002\/ejic.200601152","type":"journal-article","created":{"date-parts":[[2007,3,16]],"date-time":"2007-03-16T17:08:42Z","timestamp":1174064922000},"page":"2686-2692","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":65,"title":["The First Copper Complexes Bearing the 1,3,5\u2010Triaza\u20107\u2010phosphaadamantane (PTA) Ligand"],"prefix":"10.1002","volume":"2007","author":[{"given":"Alexander M.","family":"Kirillov","sequence":"first","affiliation":[]},{"given":"Piotr","family":"Smole\u0144ski","sequence":"additional","affiliation":[]},{"given":"M. F\u00e1tima C.","family":"Guedes da Silva","sequence":"additional","affiliation":[]},{"given":"Armando J. 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