000			02018nam a2200241Ia 4500
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090			_aB-20855
245	1	0	_aStructure, magnetic properties and spin density of two alternative Mn (ii)coordination polymers based on 1, 4-bis (2'-carboxyphenoxy)benzene
490	0		_vDalton Transactions, 51(12), p.4869-4877, 2022
520	3		_aTwo 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.
700	1	2	_aWang, A.
700	1	2	_aYang, B.
700	1	2	_aWang, Y.
700	1	2	_aHu, Z.
700	1	2	_aWei, Z.
700	1	2	_aZhu, M.
700	1	2	_aEnglert, U.
856	4	0	_uhttps://drive.google.com/file/d/1gNy_pfwC93C50porn2XHblFmlbIsuXup/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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