{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,25]],"date-time":"2025-10-25T12:43:13Z","timestamp":1761396193667,"version":"build-2065373602"},"reference-count":78,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2022,1,10]],"date-time":"2022-01-10T00:00:00Z","timestamp":1641772800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001602","name":"Science Foundation Ireland","doi-asserted-by":"publisher","award":["19\/FFP\/6909","19\/US\/3631"],"award-info":[{"award-number":["19\/FFP\/6909","19\/US\/3631"]}],"id":[{"id":"10.13039\/501100001602","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Portuguese Foundation for Science and Technology","award":["CEECIND\/00509\/2017"],"award-info":[{"award-number":["CEECIND\/00509\/2017"]}]},{"name":"Irish Research Council for Science Engineering and Technology","award":["KP1 BG1"],"award-info":[{"award-number":["KP1 BG1"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetochemistry"],"abstract":"<jats:p>Structural and magnetic properties of a new spin crossover complex [Mn(4,6-diOMe-sal2323)]+ in lattices with ClO4\u2212, (1), NO3\u2212, (2), BF4\u2212, (3), CF3SO3\u2212, (4), and Cl\u2212 (5) counterions are reported. Comparison with the magnetostructural properties of the C6, C12, C18 and C22 alkylated analogues of the ClO4\u2212 salt of [Mn(4,6-diOMe-sal2323)]+ demonstrates that alkylation effectively switches off the thermal spin crossover pathway and the amphiphilic complexes are all high spin. The spin crossover quenching in the amphiphiles is further probed by magnetic, structural and Raman spectroscopic studies of the PF6\u2212 salts of the C6, C12 and C18 complexes of a related complex [Mn(3-OMe-sal2323)]+ which confirm a preference for the high spin state in all cases. Structural analysis is used to rationalize the choice of the spin quintet form in the seven amphiphilic complexes and to highlight the non-accessibility of the smaller spin triplet form of the ion more generally in dilute environments. We suggest that lattice pressure is a requirement to stabilize the spin triplet form of Mn3+ as the low spin form is not known to exist in solution.<\/jats:p>","DOI":"10.3390\/magnetochemistry8010008","type":"journal-article","created":{"date-parts":[[2022,1,10]],"date-time":"2022-01-10T22:03:13Z","timestamp":1641852193000},"page":"8","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Steric Quenching of Mn(III) Thermal Spin Crossover: Dilution of Spin Centers in Immobilized Solutions"],"prefix":"10.3390","volume":"8","author":[{"given":"Komala","family":"Pandurangan","sequence":"first","affiliation":[{"name":"School of Chemistry, University College Dublin (UCD), Belfield, D04 V1W8 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4641-6055","authenticated-orcid":false,"given":"Anthony B.","family":"Carter","sequence":"additional","affiliation":[{"name":"School of Chemistry, University College Dublin (UCD), Belfield, D04 V1W8 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2552-6263","authenticated-orcid":false,"given":"Paulo N.","family":"Martinho","sequence":"additional","affiliation":[{"name":"School of Chemistry, University College Dublin (UCD), Belfield, D04 V1W8 Dublin, Ireland"}]},{"given":"Brendan","family":"Gildea","sequence":"additional","affiliation":[{"name":"School of Chemistry, University College Dublin (UCD), Belfield, D04 V1W8 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3777-2763","authenticated-orcid":false,"given":"Tibebe","family":"Lemma","sequence":"additional","affiliation":[{"name":"School of Chemical Sciences, Dublin City University, D09 Y5N0 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9099-7382","authenticated-orcid":false,"given":"Shang","family":"Shi","sequence":"additional","affiliation":[{"name":"School of Chemistry, University College Dublin (UCD), Belfield, D04 V1W8 Dublin, Ireland"}]},{"given":"Aizuddin","family":"Sultan","sequence":"additional","affiliation":[{"name":"School of Chemistry, University College Dublin (UCD), Belfield, D04 V1W8 Dublin, Ireland"}]},{"given":"Tia E.","family":"Keyes","sequence":"additional","affiliation":[{"name":"School of Chemical Sciences, Dublin City University, D09 Y5N0 Dublin, Ireland"}]},{"given":"Helge","family":"M\u00fcller-Bunz","sequence":"additional","affiliation":[{"name":"School of Chemistry, University College Dublin (UCD), Belfield, D04 V1W8 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5467-0507","authenticated-orcid":false,"given":"Grace G.","family":"Morgan","sequence":"additional","affiliation":[{"name":"School of Chemistry, University College Dublin (UCD), Belfield, D04 V1W8 Dublin, Ireland"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"G\u00fctlich, P., and Goodwin, H.A. 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