Oxalato‐ und Quadratato‐Komplexe hochkoordinierter Metallionen: Die Raumnetzstrukturen von La2(C2O4)(C4O4)2(H2O)8 · 2,5 H2O und K[Bi(C2O4)2] · 5 H2O |
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Authors: | Ulrich Heinl Petra Hinse Rainer Mattes |
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Abstract: | Oxalato‐ and Squarato‐Bridged Threedimensional Networks: The Crystal Structures of La2(C2O4)(C4O4)2(H2O)8 · 2.5 H2O and KBi(C2O4)2] · 5 H2O The title compounds have been formed by hydrolysis of amino‐ and thioderivatives of squaric acid in the presence of LaIII and BiIII ions. Both compounds are threedimensional coordination polymers in the solid state, as shown by single crystal X‐ray crystallography. In La2(C2O4)(C4O4)2(H2O)8 · 2.5 H2O oxalato‐bridged pairs of LaO9 polyhedra are connected with identical neighbouring polyhedra by squarate ions. In KBi(C2O4)2] · 5 H2O each Bi atom is fourfold linked to other Bi atoms by the oxalate ions. The resulting 3D network shows a diamond‐like topology with square‐shaped channels. In both structures the channels are partially filled by water molecules. |
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Keywords: | Coordination polymers Squarato complexes Oxalato complexes |
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