TY  - JOUR
AU  - Carballo, R.
AU  - Covelo, B.
AU  - García-Martínez, E.
AU  - Lago, A.B.
AU  - Vázquez-López, E.M.
T1  - Role of inorganic and organic anions in the formation of metallosupramolecular assemblies of silver(I) coordination polymers with the twisted ligand bis(4-pyridylthio)methane
LA  - eng
PY  - 2009
SP  - 923
EP  - 932
T2  - Polyhedron
SN  - 0277-5387
VL  - 28
IS  - 5
AB  - Reaction of the twisted pyridyl dithioether ligand bis(4-pyridylthio)methane (4bpytm) with silver(I) salts afforded four complexes with 1:1 stoichiometries, namely [Ag(4bpytm)](NO3) (1), [Ag(4bpytm)](ClO4) (2) and [Ag(4bpytm)](ClO4) 1/2CH2Cl2 1/2dmf (2·Solv), [Ag(CH3COO)(4bpytm)]·H2O (3) and [Ag(CF3COO)(4bpytm)] (4). X-ray structural analysis of these complexes showed that one-dimensional structures are obtained for 1, 2·Solv and 4 whereas a two-dimensional network is formed in 3. The ligand 4bpytm acts as an N,N′-bis(monodentate) bridging system in all cases except in 3, where an unprecedented coordination mode is obtained with the ligand acting in a tridentate manner using its two pyridine nitrogen atoms and a sulfur atom. The coordination polymers are assembled through secondary contacts: Ag···Ag in 4, Ag···S in 1, 2·Solv and 4, Ag···O in 2·Solv, and hydrogen bonding interactions between crystallization water that join the polymeric layers in 3. All of these weak interactions link the low-dimensional complexes to give high-dimensional supramolecular structures and further stabilize the crystal structures in the solid state. © 2009 Elsevier Ltd. All rights reserved.
DO  - 10.1016/J.POLY.2009.01.020
UR  - https://portalciencia.ull.es/documentos/5ee0c0bc2999527595f9605a
DP  - Dialnet - Portal de la Investigación
ER  -