{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T00:32:49Z","timestamp":1761006769593,"version":"build-2065373602"},"reference-count":32,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2013,8,13]],"date-time":"2013-08-13T00:00:00Z","timestamp":1376352000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Reson in Chemistry"],"published-print":{"date-parts":[[2013,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The complexation of rhodium(II) tetraacetate, tetrakistrifluoroaceate and tetrakisoctanoate with a set of diamines (ethane\u20101,diamine, propane\u20101,3\u2010diamine and nonane\u20101,9\u2010diamine) and their <jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>\u2032\u2010dimethyl and <jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>\u2032,<jats:italic>N<\/jats:italic>\u2032\u2010tetramethyl derivatives in chloroform solution has been investigated by <jats:sup>1<\/jats:sup>H and <jats:sup>13<\/jats:sup>C NMR spectroscopy and density functional theory (DFT) modelling. A combination of two bifunctional reagents, diamines and rhodium(II) tetracarboxylates, yielded insoluble coordination polymers as main products of complexation and various adducts in the solution, being in equilibrium with insoluble material. All diamines initially formed the 2\u2009:\u20091 (blue), (1\u2009:\u20091)<jats:italic><jats:sub>n<\/jats:sub><\/jats:italic> oligomeric (red) and 1\u2009:\u20092 (red) axial adducts in solution, depending on the reagents' molar ratio. Adducts of primary and secondary diamines decomposed in the presence of ligand excess, the former via unstable equatorial complexes. The complexation of secondary diamines slowed down the inversion at nitrogen atoms in NH(CH<jats:sub>3<\/jats:sub>) functional groups and resulted in the formation of nitrogenous stereogenic centres, detectable by NMR. Axial adducts of tertiary diamines appeared to be relatively stable. The presence of long aliphatic chains in molecules (adducts of nonane\u20101,9\u2010diamines or rhodium(II) tetrakisoctanoate) increased adduct solubility. Hypothetical structures of the equatorial adduct of rhodium(II) tetraacetate with ethane\u20101,2\u2010diamine and their NMR parameters were explored by means of DFT calculations. Copyright \u00a9 2013 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/mrc.3997","type":"journal-article","created":{"date-parts":[[2013,8,13]],"date-time":"2013-08-13T22:11:05Z","timestamp":1376431865000},"page":"662-670","source":"Crossref","is-referenced-by-count":3,"title":["Complexation of rhodium(II) tetracarboxylates with aliphatic diamines in solution: <sup>1<\/sup>H and <sup>13<\/sup>C NMR and DFT investigations"],"prefix":"10.1002","volume":"51","author":[{"given":"Jaros\u0142aw","family":"Ja\u017awi\u0144ski","sequence":"first","affiliation":[{"name":"Institute of Organic Chemistry PAS  ul. 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