Aquaazido{3,3′-[o-phenylenebis(nitrilomethylidyne)]di-2-naphtholato}manganese(III)

Poly[tetra­aqua­bis­(μ3-oxalato-κ5 O 1,O 2:O 1′:O 1′,O 2′)(μ2-oxalato-κ4 O 1,O 2:O 1′,O 2′)dipraseodymium(III)]

In the title complex, [Pr(2)(C(2)O(4))(3)(H(2)O)(4)](n), the two independent Pr(III) ions are both nine-coordinated in a distorted monocapped square-anti-prismatic geometry by seven O atoms from four oxalate ligands and two water mol-ecules. The Pr(III) ions are bridged by the oxalate ligands, forming a layer parallel to (001). O-H⋯O hydrogen bonds connect the layers.

Poly[di-μ-aqua-di­aqua­bis­(μ7-oxalato-κ9 O 1:O 1:O 1,O 2:O 2:O 2′:O 2′,O 1′:O 1′)calciumdicaesium]

In the title compound, [CaCs2(C2O4)2(H2O)4] n , the Ca(2+) ion, lying on a twofold rotation axis, is coordinated by four O atoms from two oxalate ligands and two bridging water mol-ecules in an octa-hedral geometry. The Cs(+) ion is coordinated by seven O atoms from six oxalate ligands, one bridging water and one terminal water mol-ecule. The oxalate ligand displays a scarce high denticity. The...

O + + H 2 O „ + M ... \ H 5 O 2 + „ + M ...

Bis(μ-pyridine-2,4-dicarboxyl­ato)-κ3 N,O 2:O 2;κ3 O 2:N,O 2-bis­[triaqua­magnesium(II)]

In the title centrosymmetric Mg(II) complex, [Mg(2)(C(7)H(3)NO(4))(2)(H(2)O)(6)], each Mg cation is N,O-chelated by a pyridine-2,4-dicarboxyl-ate dianion and is coordinated by three water mol-ecules. A carboxyl-ate O atom from the neighboring pyridine-2,4-dicarboxyl-ate dianion bridges the Mg cation to complete the MgNO(5) distorted octa-hedral coordination geometry. The dinuclear complex mol-e...

Crystal structure of bis­(μ2-4-tert-butyl-2-formyl­phenolato)-1:2κ3 O 1,O 2:O 1;3:4κ3 O 1,O 2:O 1-bis­(4-tert-butyl-2-formyl­phenolato)-2κ2 O 1,O 2;4κ2 O 1,O 2-di-μ3-methoxido-1:2:3κ3 O;1:3:4κ3 O-di-μ2-methoxido-1:4κ2 O;2:3κ2 O-tetra­copper(II)

The structure of the title compound, [Cu4(CH3O)4(C11H13O2)4], consists of dimeric dinuclear copper(II) complexes oriented around a centre of inversion. Within each dinuclear fragment, the two Cu(II) atoms are in a distorted square-planar coordination sphere. Two neighbouring fragments are linked by four apical Cu-O contacts, yielding an overall square-pyramidal coordination environment for each...