02018nam a2200241Ia 4500 MX-MdCICY 20260521091745.0 CICY B-20855 Structure, magnetic properties and spin density of two alternative Mn (ii)coordination polymers based on 1, 4-bis (2'-carboxyphenoxy)benzene Dalton Transactions, 51(12), p.4869-4877, 2022 Two novel manganese coordination polymers [Mn2(?2-bcpb)(?4-bcpb)(2,2?-bipy)2]n (1)and [Mn2(?3-bcpb)2(2,2?-bipy)2(H2O)]n (2)(H2bcpb = 1,4-bis(2?-carboxylato phenoxy)-benzene; 2,2?-bipy = 2,2?-bipyridine), have been synthesized successfully from the same reactants. This unusual selectivity was corroborated by X-ray powder diffraction. Single crystal X-ray diffraction analysis of complex 1 reveals that neighboring Mn(II)ions are linked via two bcpb2? anions to form a dinuclear Mn(II)subunit [Mn2(?1,1-COO)2]2+ with a Mn?Mn distance of 3.3758 (6)Å. And ??? interactions between aromatic rings of the bcpb2? and 2,2?-bipy ligands stabilize the two-dimensional extended coordination network with the unprecedented Schläfli symbols {4·62}2{42·62·82}. In the [Mn2(?1,3-COO)2]2+ subunit of 2, two linking bcpb2? ligands subtend an interaction distance of 4.4048(6)Å. Intermolecular O-H?O hydrogen bonds involving oxygen atoms of carboxylic acid and coordinated water molecules connect adjacent 1D chain molecules into a 2D network. Experimental temperature-dependent magnetic susceptibility measurements and spin density analyses by DFT disclose that compounds 1 and 2 display different magnetic properties. Wang, A. Yang, B. Wang, Y. Hu, Z. Wei, Z. Zhu, M. Englert, U. https://drive.google.com/file/d/1gNy_pfwC93C50porn2XHblFmlbIsuXup/view?usp=drivesdk Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 30874 30874 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-20855 2025-06-25 16:24:56 2025-06-25 REF1