Coordination polymers of Cu(II), Co(II) and Cd(II) based on a tetramethyl-substituted terphenyldicarboxylic acid
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DASCĂLU, Ioan Andrei, SHOVA, Sergiu, DUMITRESCU, Dan Gheorghe, ROMAN, Gheorghe, BRATANOVICI, Bogdan Ionel, ARDELEANU, Rodinel, LOZAN, Vasile. Coordination polymers of Cu(II), Co(II) and Cd(II) based on a tetramethyl-substituted terphenyldicarboxylic acid. In: Polyhedron, 2019, nr. 170, pp. 463-470. ISSN 0277-5387. DOI: https://doi.org/10.1016/j.poly.2019.05.066
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Polyhedron
Numărul 170 / 2019 / ISSN 0277-5387 /ISSNe 1873-3719

Coordination polymers of Cu(II), Co(II) and Cd(II) based on a tetramethyl-substituted terphenyldicarboxylic acid

DOI:https://doi.org/10.1016/j.poly.2019.05.066

Pag. 463-470

Dascălu Ioan Andrei1, Shova Sergiu1, Dumitrescu Dan Gheorghe2, Roman Gheorghe1, Bratanovici Bogdan Ionel13, Ardeleanu Rodinel1, Lozan Vasile14
 
1 “Petru Poni” Institute of Macromolecular Chemistry,
2 Elettra Synchrotron Trieste,
3 Alexandru Ioan Cuza University of Iaşi,
4 Institute of Chemistry
 
 
Disponibil în IBN: 9 iulie 2019


Rezumat

Three new 3D-metal–organic frameworks based on 2′,3′,5′,6′-tetramethyl-[1,1′:4′,1′′-terphenyl]-4,4′′-dicarboxylic acid (H2L) and Co, Cu, and Cd nodes have been synthesized. The complexes were characterized by elemental, thermogravimetric analysis, IR spectroscopy, single crystal, powder X-ray diffraction and gas sorption experiments. The crystal structure of [Cu2L2(H2O)2]n (1) corresponds to a two-dimensional coordination polymer, in which the metal nodes are two crystallographically equivalent Cu(II) atoms linked by four μ2-O,O′ carboxylate ligands in a centrosymmetric {Cu2O10} paddle-wheel building block. The structure of compound [CoL(dmso)]n (2) has a 3D metal–organic coordination lattice, in which the metal centers are connected by the linear organic ligand to generate a dense three-dimensional coordination polymer. Also, a three-dimensional coordination network was identified in the case of compound [Cd2L2(dmf)]n (3), whose structure is very similar to that of compound 2. In compound 3, the carboxylate groups of the linear L2− spacers behave as μ23O, O′:O tridentate bridging ligands. The compounds have a high thermal stability. Polymers 3 and 1 have moderate porosity (specific surface areas of approximately 900 m2/g and 600 m2/g, respectively), while polymer 2 has a dense structure.

Cuvinte-cheie
Coordination polymer, crystal structure, specific surface area, Terphenyl ligand, Topology

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<dc:creator>Dascălu, I.</dc:creator>
<dc:creator>Şova, S.G.</dc:creator>
<dc:creator>Dumitrescu, D.</dc:creator>
<dc:creator>Roman, G.</dc:creator>
<dc:creator>Bratanovici, B.</dc:creator>
<dc:creator>Ardeleanu, R.</dc:creator>
<dc:creator>Lozan, V.I.</dc:creator>
<dc:date>2019-09-15</dc:date>
<dc:description xml:lang='en'><p>Three new 3D-metal&ndash;organic frameworks based on 2&prime;,3&prime;,5&prime;,6&prime;-tetramethyl-[1,1&prime;:4&prime;,1&prime;&prime;-terphenyl]-4,4&prime;&prime;-dicarboxylic acid (H<sub>2</sub>L) and Co, Cu, and Cd nodes have been synthesized. The complexes were characterized by elemental, thermogravimetric analysis, IR spectroscopy, single crystal, powder X-ray diffraction and gas sorption experiments. The crystal structure of [Cu<sub>2</sub>L<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>]<sub>n</sub> (1) corresponds to a two-dimensional coordination polymer, in which the metal nodes are two crystallographically equivalent Cu(II) atoms linked by four &mu;<sub>2</sub>-O,O&prime; carboxylate ligands in a centrosymmetric {Cu<sub>2</sub>O<sub>10</sub>} paddle-wheel building block. The structure of compound [CoL(dmso)]<sub>n</sub> (2) has a 3D metal&ndash;organic coordination lattice, in which the metal centers are connected by the linear organic ligand to generate a dense three-dimensional coordination polymer. Also, a three-dimensional coordination network was identified in the case of compound [Cd<sub>2</sub>L<sub>2</sub>(dmf)]<sub>n</sub> (3), whose structure is very similar to that of compound 2. In compound 3, the carboxylate groups of the linear L<sup>2&minus;</sup> spacers behave as &mu;<sub>2</sub>-&kappa;<sup>3</sup>O, O&prime;:O tridentate bridging ligands. The compounds have a high thermal stability. Polymers 3 and 1 have moderate porosity (specific surface areas of approximately 900 m<sup>2</sup>/g and 600 m<sup>2</sup>/g, respectively), while polymer 2 has a dense structure.</p></dc:description>
<dc:identifier>10.1016/j.poly.2019.05.066</dc:identifier>
<dc:source>Polyhedron  (170) 463-470</dc:source>
<dc:subject>Coordination polymer</dc:subject>
<dc:subject>crystal structure</dc:subject>
<dc:subject>specific surface area</dc:subject>
<dc:subject>Terphenyl ligand</dc:subject>
<dc:subject>Topology</dc:subject>
<dc:title>Coordination polymers of Cu(II), Co(II) and Cd(II) based on a tetramethyl-substituted terphenyldicarboxylic acid</dc:title>
<dc:type>info:eu-repo/semantics/article</dc:type>
</oai_dc:dc>