Poly[aqua-μ-bromido-(μ2-5-methylpyrazine-2-carboxylato-κ4N1,O2:O2,O2′)lead(II)]

Poly[aqua-μ-bromido-(μ2-5-methyl­pyrazine-2-carboxyl­ato-κ4 N 1,O 2:O 2,O 2′)lead(II)]

In the title coordination polymer, [PbBr(C(6)H(5)N(2)O(2))(H(2)O)](n), the Pb(II) atom is coordinated by one pyrazine N atom, two bridging Br atoms, a water mol-ecule and three carboxyl-ate O atoms. Bridging by the two anions generates a layer structure parallel to (001); the layers are linked by O-H⋯N and O-H⋯Br hydrogen bonds, forming a three-dimensional network. The lone pair is stereochemic...

The Crystal Structure of Monoaquabis(trans-5- -methylpyrazine-2-carboxylato-N,O)copper(II) Trihydrate

Poly[μ-aqua-diaqua(μ3-1H-benzimid­azole-5-carboxylato-κ3 N 3:O,O′)(μ2-1H-benzimidazole-5-carboxylato-κ3 N 3:O:O′)-μ5-sulfato-μ4-sulfato-tri­cadmium]

The asymmetric unit of the title compound, [Cd(3)(C(8)H(5)N(2)O(2))(2)(SO(4))(2)(H(2)O)(3)](n), contains three Cd(II) ions, two sulfate anions, two 1H-benzimidazole-5-carboxyl-ate (H(2)bic) ligands and three coordinated water mol-ecules. One Cd(II) ion is six-coordinated and exhibits a distorted octa-hedral geometry, while the other two Cd(II) ions are seven-coordinated, displaying a distorted ...

catena-Poly[sodium [[tris(3-methyl­pyridine-2-carboxylato)europate(III)]-μ-3-methylpyridine-2-carboxylato] trihydrate]

In the title structure, {Na[Eu(C(7)H(6)NO(2))(4)]·3H(2)O}(n), the Eu(III) atom is nine-coordin-ated within a slightly distorted tricapped trigonal-prismatic coordination geometry defined by five carboxyl-ate-O atoms and four pyridine-N atoms. One of the carboxyl-ate ligands bridges the Eu cations, forming a one-dimensional coordination polymer along the b axis. The Eu-O bond distances lie withi...

Poly[[aqua­(μ2-oxalato)(μ2-2-oxido­pyridinium-3-carboxylato)holmium(III)] monohydrate]

In the title complex, {[Ho(C(2)O(4))(C(6)H(4)NO(3))(H(2)O)]·(H(2)O)}(n), the Ho(III) ion is coordinated by three O atoms from two 2-oxidopyridinium-3-carboxylate ligands, four O atoms from two oxalate ligands and one water mol-ecule in a distorted bicapped trigonal-prismatic geometry. The 2-oxidopyridin-ium-3-carboxylate and oxalate ligands link the Ho(III) ions into a layer in (100). These lay...