Anion exchange in Cu(II) one-dimensional coordination polymers with Cu-(2,2’-BIPY) and Cu-(O-phen) corner fragments
Închide
Articolul precedent
Articolul urmator
621 1
Ultima descărcare din IBN:
2022-02-01 23:42
SM ISO690:2012
MELNIK, E., COROPCEANU, Eduard, FONARI, Marina, KRAVTSOV, Victor. Anion exchange in Cu(II) one-dimensional coordination polymers with Cu-(2,2’-BIPY) and Cu-(O-phen) corner fragments. In: Materials Science and Condensed Matter Physics, Ed. 7, 16-19 septembrie 2014, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2014, Editia 7, p. 163.
EXPORT metadate:
Google Scholar
Crossref
CERIF

DataCite
Dublin Core
Materials Science and Condensed Matter Physics
Editia 7, 2014
Conferința "Materials Science and Condensed Matter Physics"
7, Chișinău, Moldova, 16-19 septembrie 2014

Anion exchange in Cu(II) one-dimensional coordination polymers with Cu-(2,2’-BIPY) and Cu-(O-phen) corner fragments


Pag. 163-163

Melnik E.1, Coropceanu Eduard2, Fonari Marina1, Kravtsov Victor1
 
1 Institute of Applied Physics, Academy of Sciences of Moldova,
2 Institute of Chemistry of the Academy of Sciences of Moldova
 
Proiecte:
 
Disponibil în IBN: 6 martie 2019


Rezumat

Rational design of metal-organic materials with needed architecture and properties is in focus of crystal engineers and materials scientists for decades. Several useful approaches relying on the usage of the preliminary constructed metal-building blocks, manipulation by the bridging and terminal ligands, templating cations and anions, the synthetic conditions, and post-synthetic modifications prove their efficacy [1-2]. The intrinsic properties of the copper metal ion suggesting different coordination numbers and geometries, available redox states, thermodynamic and kinetic characteristics on one hand, and its fascinating magnetic and biochemical properties on another hand, explain this metal unique place in magneto- and medicinal chemistry, and in crystal engineering [3]. A combination of the Cu(II)-2,2‟-bipy and Cu(II)-o-phen corner fragments with the bridging ligands, 4,4‟-bipyridine (4,4‟-bipy) and 4,4‟-bipyridinepropane (bpp) in the presence of the framework-regulator tetrahedral ClO4 - or BF4 - anions [2,4] provides a series of porous onedimensional (1D) coordination polymers, [Cu(2,2‟-bipy)(4,4‟-bipy)(ClO4)2]n .nH2O (1), {[Cu(2,2‟- bipy)(bpp)(ClO4)(H2O)][ClO4]}n . (2), {[Cu(o-phen)(bpp)(ClO4)(DMF)][ClO4]}n . (3), and {[Cu(ophen)( bpp)(BF4)2][Cu(o-phen)(bpp)2] [BF4]2}n . (4), using copper fluoride, CuF2 as the starting salt. The final materials represent anionic (1, 3), neutral (2) or mixed anionic / neutral (4a,b) tapes that differ by the degree of corrugation, the Cu(II) coordination cores being N4O2 in 1, 2, 3, N4F2 in 4a and N5 in 4b, and function of the templating anions, that either coordinate to the metal in 1 or coordinate and freely locate in the channels constructed from a host network in the other structures (Figure 1). The details of the metal coordination geometry, anion exchange, conformational flexibility of the bridging ligands, and crystal packing efficacy are discussed.