Journalartikel

Jahr der Veröffentlichung: 2009

Seiten: 2034-2038

Zeitschrift: Journal of Inorganic and General Chemistry

Bandnummer: 635

Heftnummer: 12

ISSN: 0044-2313

DOI Link: https://doi.org/10.1002/zaac.200900247

Verlag: Wiley

Abstract: 
The homoleptic framework (3)(infinity)[Eu(Me(4)BpzH)(3)(Me(4)BpzH(2))], Me(4)BpzH(-) = 3,3',5,5'-tetramethyl-4,4'-bipyrazolate anion, C10H13N4-, Me(4)BpzH(2) = 3,3',5,5'-tetramethyl-4,4'-bipyrazole, C10H14N4, is obtained by a high-temperature oxidation of the metal curopium with a self consuming melt of 3,3',5,5'-tetramethyl-4,4'-bipyrazole above 300 degrees C. The framework structure initiates from a three-dimensional linkage of curopium atoms and bridging ligands that coordinate with one nitrogen atom of each aromatic ring linking eta(1):eta(1) through front and backside of the bicyclic ring system. The framework has a (4,8) topology and is the first example of a rare earth bipyrazolate. Thus, for the trivalent eightfold by nitrogen atoms coordinated europium, a sterically rather crowded ligand with four methyl groups is able to yield a 3D-framework. The crystal structure was refined from systematically eightfold twinned crystals as meroedric fourfold twins with a subsequent racemic twinning of the fourfold twin individuals.

Harvard-Zitierstil: Zurawski, A., Sieler, J. and Müller-Buschbaum, K. (2009) A First and Homoleptic Rare Earth 3D-Bipyrazolate MOF: (3)(infinity)[Eu(Me(4)BpzH)(3)(Me(4)BpzH(2))], Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry, 635(12), pp. 2034-2038. https://doi.org/10.1002/zaac.200900247

APA-Zitierstil: Zurawski, A., Sieler, J., & Müller-Buschbaum, K. (2009). A First and Homoleptic Rare Earth 3D-Bipyrazolate MOF: (3)(infinity)[Eu(Me(4)BpzH)(3)(Me(4)BpzH(2))]. Zeitschrift für anorganische und allgemeine Chemie = Journal of Inorganic and General Chemistry. 635(12), 2034-2038. https://doi.org/10.1002/zaac.200900247