摘要:
The title complexes, [La(CHCl2CO2)(3)(C12H8N2)(2)(C2H5OH)(H2O)] and [Sm(CHCl2CO2)(3)(C12H8N2)(2)(C2H5OH)(H2O)], are isostructural. The La and Sm atoms are nine-coordinate with distorted tricapped trigonal prismatic coordination geometry. The average bond distances in the two structures are La-O(dichloroacetate) 2.470(14), La-O(H2O and C2H5OH) 2.59(9), La-N 2.72(2), Sm-O(dichloroacetate) 2.39(3), Sm-O(H2O and C2H5OH) 2.54(13) and Sm-N 2.63(4) Angstrom. The complexes form one-dimensional intermolecular-hydrogen-bonded chains in a direction nearly parallel to the a axis. This stabilizes the crystal packing.