{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T01:22:18Z","timestamp":1760232138880,"version":"build-2065373602"},"reference-count":53,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,4,27]],"date-time":"2022-04-27T00:00:00Z","timestamp":1651017600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Deutsche Forschungsgemeinschaft (DFG)","award":["397252409"],"award-info":[{"award-number":["397252409"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Starting from [Ru(pyO)2(nbd)] 1 and a N,P,N-tridentate ligand (2a: PhP(pic)2, 2b: PhP(pyO)2) (nbd = 2,5-norbornadiene, pic = 2-picolyl = 2-pyridylmethyl, pyO = 2-pyridyloxy = pyridine-2-olate), the compounds [PhP(\u03bc-pic)2(\u03bc-pyO)Ru(\u03ba2-pyO)] (3a) and [PhP(\u03bc-pyO)3Ru(\u03ba2-pyO)] (3b), respectively, were prepared. Reaction of compounds 3 with CO and CNtBu afforded the opening of the Ru(\u03ba2-pyO) chelate motif with the formation of compounds [PhP(\u03bc-pic)2(\u03bc-pyO)Ru(\u03ba-O-pyO)(CO)] (4a), [PhP(\u03bc-pic)2(\u03bc-pyO)2Ru(CNtBu)] (5a), [PhP(\u03bc-pyO)4Ru(CO)] (4b) and [PhP(\u03bc-pyO)4Ru(CNtBu)] (5b). In dichloromethane solution, 4a underwent a reaction with the solvent, i.e., substitution of the dangling pyO ligand by chloride with the formation of [PhP(\u03bc-pic)2(\u03bc-pyO)Ru(Cl)(CO)] (6a). The new complexes 3a, 4a, 5a, 5b and 6a were characterized by single-crystal X-ray diffraction analyses and multi-nuclear (1H, 13C, 31P) NMR spectroscopy. The different coordination behaviors of related pairs of molecules (i.e., pairs of 3, 4 and 5), which depend on the nature of the P\u2013Ru-bridging ligand moieties (\u03bc-pic vs. \u03bc-pyO), were also studied via computational analyses using QTAIM (quantum theory of atoms in molecules) and NBO (natural bond orbital) approaches, as well as the NCI (non-covalent interactions descriptor) for weak intramolecular interactions.<\/jats:p>","DOI":"10.3390\/molecules27092778","type":"journal-article","created":{"date-parts":[[2022,4,27]],"date-time":"2022-04-27T22:20:20Z","timestamp":1651098020000},"page":"2778","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["P\u2013Ru-Complexes with a Chelate-Bridge-Switch: A Comparison of 2-Picolyl and 2-Pyridyloxy Moieties as Bridging Ligands"],"prefix":"10.3390","volume":"27","author":[{"given":"Lisa","family":"Ehrlich","sequence":"first","affiliation":[{"name":"Institut f\u00fcr Anorganische Chemie, TU Bergakademie Freiberg, D-09596 Freiberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4669-0206","authenticated-orcid":false,"given":"Robert","family":"Gericke","sequence":"additional","affiliation":[{"name":"Institut f\u00fcr Anorganische Chemie, TU Bergakademie Freiberg, D-09596 Freiberg, Germany"},{"name":"Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf eV, D-01328 Dresden, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0818-5524","authenticated-orcid":false,"given":"Erica","family":"Brendler","sequence":"additional","affiliation":[{"name":"Institut f\u00fcr Analytische Chemie, TU Bergakademie Freiberg, D-09596 Freiberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5968-2331","authenticated-orcid":false,"given":"J\u00f6rg","family":"Wagler","sequence":"additional","affiliation":[{"name":"Institut f\u00fcr Anorganische Chemie, TU Bergakademie Freiberg, D-09596 Freiberg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,4,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"680","DOI":"10.1002\/1521-3773(20010216)40:4<680::AID-ANIE6800>3.0.CO;2-0","article-title":"Hemilability of Hybrid Ligands and the Coordination Chemistry of Oxazoline-Based Systems","volume":"40","author":"Braunstein","year":"2001","journal-title":"Angew. 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