TY - JOUR
T1 - Influence of anion on the network structure of one dimensional silver(I) coordination polymers of dicompartmental N,N-donor ligands
AU - Chakraborty, Biswarup
AU - Maiti, Subhadip
AU - Paine, Tapan Kanti
N1 - Funding Information:
Financial support from the Department of Science and Technology, Government of India is gratefully acknowledged. Single-crystal diffraction data were collected at the DST-funded National Single Crystal Diffractometer Facility at the Department of Inorganic Chemistry, IACS. B.C. acknowledges the Council of Scientific and Industrial Research (CSIR), India for a fellowship.
PY - 2013/3/22
Y1 - 2013/3/22
N2 - Three one-dimensional silver(I) coordination polymers {[AgL 1]NO3}n (1), {[AgL2]ClO 4}n (2) and {[AgL2]NO3}n (2a), where L1 (pyridin-2-ylmethylene-(4-{[(pyridin-2-ylmethylene)- amino]-methyl}-benzyl)-amine) is a dicompartmental iminopyridine ligand derived from the Schiff-base condensation of α,α′-diamino-p-xylene and pyridine-2-carboxaldehyde and L2 (N-(4-((methyl(pyridin-2-ylmethyl) amino)methyl)benzyl)-N-methyl(pyridin-2-yl)methanamine) is the reduced N-methyl derivative of L1, have been isolated from the reaction of ligands with various silver salts. Six different conformations of L1 are known that give rise to different network structures for {[AgL 1]ClO4}n. X-ray single crystal structure of polymer 1·5H2O reveals that the asymmetric unit contains five water molecules that form a two-dimensional hydrogen bonding network with nitrate counter anion. A new conformer of L1 is observed in the polymeric structure of 1·5H2O. Coordination polymers 2 and 2a, both made of [AgL2]+ repeating unit, contains different conformers of L2. As a result, different polymeric structures are obtained for 2 and 2a. The effect of counterion on the ligand conformation and subsequently on the polymeric structure is reported.
AB - Three one-dimensional silver(I) coordination polymers {[AgL 1]NO3}n (1), {[AgL2]ClO 4}n (2) and {[AgL2]NO3}n (2a), where L1 (pyridin-2-ylmethylene-(4-{[(pyridin-2-ylmethylene)- amino]-methyl}-benzyl)-amine) is a dicompartmental iminopyridine ligand derived from the Schiff-base condensation of α,α′-diamino-p-xylene and pyridine-2-carboxaldehyde and L2 (N-(4-((methyl(pyridin-2-ylmethyl) amino)methyl)benzyl)-N-methyl(pyridin-2-yl)methanamine) is the reduced N-methyl derivative of L1, have been isolated from the reaction of ligands with various silver salts. Six different conformations of L1 are known that give rise to different network structures for {[AgL 1]ClO4}n. X-ray single crystal structure of polymer 1·5H2O reveals that the asymmetric unit contains five water molecules that form a two-dimensional hydrogen bonding network with nitrate counter anion. A new conformer of L1 is observed in the polymeric structure of 1·5H2O. Coordination polymers 2 and 2a, both made of [AgL2]+ repeating unit, contains different conformers of L2. As a result, different polymeric structures are obtained for 2 and 2a. The effect of counterion on the ligand conformation and subsequently on the polymeric structure is reported.
KW - Coordination polymer
KW - Ligand conformer
KW - Nitrogen-donor ligand
KW - Silver
KW - Solid-state structure
UR - http://www.scopus.com/inward/record.url?scp=84875454480&partnerID=8YFLogxK
U2 - 10.1016/j.poly.2012.10.038
DO - 10.1016/j.poly.2012.10.038
M3 - Article
AN - SCOPUS:84875454480
SN - 0277-5387
VL - 52
SP - 122
EP - 127
JO - Polyhedron
JF - Polyhedron
ER -