TY - JOUR
T1 - Square-grid coordination networks of diaqua-bis(4,4′-bipyrid-yl) copper(II) crosslinked by hydrogen bonds through two monoanions of 1-benzofuran-2,3-dicarboxylic acid and five mol-ecules of water
AU - Koner, Rajesh
AU - Goldberg, Israel
PY - 2009
Y1 - 2009
N2 - The title compound, poly[[[diaqua-copper(II)]-di - 4,4′-bi-pyri-d-yl] bis-(3-carb-oxy-1-benzofuran-2-carboxyl-ate) penta-hy-drate], {[Cu(Cl0H 8N2)2(H2O)2](Cl0H 5O5)2·5H2O}n , crystal-lizes in a single-framework architecture. It is composed of two-dimensional square-grid coordination networks of 1:2:2 copper-4,4′- bipyridine-water units, wherein each copper ion coordinates equatorially to four bipyridyl units and axially to two water ligands. The polymeric nets are inter-calated by layers of the benzofuran-dicarboxylic acid monoanions and additional water species. An extensive array of hydrogen bonds inter-links the various components of the structure. The Cu atom and the bipyridyl entities are located on axes of twofold rotation. This study confirms the preferred monoanionic nature of the benzofuran-dicarboxylic acid mol-ecule. It reveals a rarely observed extended coordination polymer composed only of copper ions and bipyridyl linkers, and an inter-esting hydrogen-bonding connectivity between the polymeric layers aided by the benzofuran-dicarboxylic acid and water components inter-calated in the structure.
AB - The title compound, poly[[[diaqua-copper(II)]-di - 4,4′-bi-pyri-d-yl] bis-(3-carb-oxy-1-benzofuran-2-carboxyl-ate) penta-hy-drate], {[Cu(Cl0H 8N2)2(H2O)2](Cl0H 5O5)2·5H2O}n , crystal-lizes in a single-framework architecture. It is composed of two-dimensional square-grid coordination networks of 1:2:2 copper-4,4′- bipyridine-water units, wherein each copper ion coordinates equatorially to four bipyridyl units and axially to two water ligands. The polymeric nets are inter-calated by layers of the benzofuran-dicarboxylic acid monoanions and additional water species. An extensive array of hydrogen bonds inter-links the various components of the structure. The Cu atom and the bipyridyl entities are located on axes of twofold rotation. This study confirms the preferred monoanionic nature of the benzofuran-dicarboxylic acid mol-ecule. It reveals a rarely observed extended coordination polymer composed only of copper ions and bipyridyl linkers, and an inter-esting hydrogen-bonding connectivity between the polymeric layers aided by the benzofuran-dicarboxylic acid and water components inter-calated in the structure.
UR - http://www.scopus.com/inward/record.url?scp=59849093377&partnerID=8YFLogxK
U2 - 10.1107/S0108270109000353
DO - 10.1107/S0108270109000353
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C2 - 19190372
AN - SCOPUS:59849093377
SN - 0108-2701
VL - 65
SP - m62-m65
JO - Acta Crystallographica Section C: Crystal Structure Communications
JF - Acta Crystallographica Section C: Crystal Structure Communications
IS - 2
ER -