Catena-Poly[[[bis-(4-ethyl-benzoato-?O,O')lead(II)]-?-nicotinamide-?N:O] monohydrate].

ABSTRACT: In the crystal structure of the polymeric title compound, {[Pb(C(9)H(9)O(2))(2)(C(6)H(6)N(2)O)]·H(2)O}(n), the six-coordinate Pb(II) ion is chelated by two 4-ethyl-benzoate (PEB) anions and is bridged by two nicotinamide (NA) ligands, forming a polymeric chain running along the b axis. The carboxyl-ate groups of the PEB ions are twisted away from the attached benzene rings by 4.0?(6) and 13.3?(5)°. The two benzene rings of the PEB ions bonded to the same metal ion are oriented at a dihedral angle of 87.4?(3)°. In the polymeric chain, the NA ligand is linked to one of the carboxyl-ate groups via N-H?O hydrogen bonding. In the crystal, adjacent polymeric chains inter-act via N-H?O and weak C-H?O hydrogen bonds; and the lattice water mol-ecule links with the polymeric chains via N-H?O and O-H?O hydrogen bonding. ?-? stacking between the benzene and the pyridine rings [centroid-centroid distance = 3.805?(5)?Å] and weak C-H?? inter-actions are also observed in the crystal structure.

SUBMITTER: Hokelek T 

PROVIDER: S-EPMC3212141 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature