20.500.12556/RUL-167755 Magnetic interactions in coordination species with 5-sulfosalicylates 5-sulfosalicylic acid (H$_3$L) poses three potential coordination groups (carboxylic, sulfonic and hydroxylic) that can deprotonate and enable versatile coordination options with metal ions. This includes a bridging mode, a suitable way to enable stronger magnetic interactions, among adjacent metal ions. Several novel coordination compounds with 5-sulfosalicylates were synthesized and characterized. These are {[Cu(inia)(HL)(H$_2$O)$_2$](H$_2$O)$_2$}$_n$ 1 (inia – isonicotinamide, C$_6$H$_6$N$_2$O), [Zn(inia)$_2$(HL)(H$_2$O)$_2$](H$_2$O) 2, Co(inia)(HL)(H$_2$O)$_5$ 3, {(CH$_6$N$_3$)$_2$[Cu(L)(H$_2$O)]$_2$(2OHpy)$_4$} 4 (2OHpy − 2-hydroxypyridine, C$_5$H$_5$NO; CH$_6$N$_3^+$ − guanidinium cation), and (CH$_6$N$_3$)Cu(L)(H$_2$O) 5. A single crystal XRD analysis reveals structural arrangement of 1, 2 and 4. CHN and IR analyses corroborate with the structural data and propose rational formulae also for 3 and 5. A strong antiferromagnetic (AFM) coupling is found for 4 (J = −116 cm$^{−1}$/mol Cu(II)) being in agreement with a pair short monoatomic Cu•••O•••Cu’ coordination bridges (Cu•••O 1.941/ Cu’•••O 1.998 Å) showing pseudo dimers within coordination polyanions. As no such short contacts are seen for 1, the magnetically isolated Cu(II) are present in a neutral coordination formulae, while diamagnetic Zn(II) is in 2. Additionally, a strong AFM coupling is present also in 5 (J = −126 cm$^{−1}$/mol Cu(II)) with a formulae also suggesting ionic constituents as in 4. The cobalt compound 3 reveals only a small orbital contribution L within almost magnetically isolated Co(II), giving D = 56.5 cm$^{−1}$, E = −0.34 cm$^{−1}$, and zJ = −0.011 cm$^{−1}$. 5-sulfosalicylic acid copper cobalt structure antiferromagnetism 5-sulfosalicilna kislina baker kobalt struktura antiferomagnetizem true false true Angleški jezik Slovenski jezik Članek v reviji 2025-03-10 14:38:15 2025-03-10 14:38:15 2025-03-14 10:59:28 0000-00-00 00:00:00 2025 0 0 8 str. Vol. 273, art. 117482 1 May 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 546.56:546.73:547.541 0277-5387 10.1016/j.poly.2025.117482 228453891 RAZ_Kozlevcar_Bojan_2025.pdf RAZ_Kozlevcar_Bojan_2025.pdf 1 2FE2020148F59A2F8C3BBC7B02011FDC 547cd17460ce633b18de5556de6f0725be783b31f67ce519043a2fbae2543a38 44cbfe73-fdb7-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=200504 https://www.sciencedirect.com/science/article/pii/S0277538725000968 1 f3df2cfb-fdb3-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=200503 Fakulteta za kemijo in kemijsko tehnologijo Fakulteta za gradbeništvo in geodezijo 0 0 0