In the mol-ecule of the title compound, [Sn(C(2)H(5))(2)(C(9)H(8)N(2)O(3))], the Sn atom is five-coordinated in a distorted trigonal-bipyramidal configuration by two O and one N atoms of the tridentate Schiff base ligand in the equatorial plane, and by two C atoms of ethyl groups in the axial positions. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into cent...

The Cu atom of the title complex, [Cu(C(13)H(19)N(2)O(2))(C(10)H(8)N(2))]ClO(4), has a distorted square-pyramidal geometry with all three of the donor atoms from the N,N',O-tridentate Schiff base ligand in the equatorial positions and the bipyridine N atoms in an equatorial-axial binding mode. The Cu atom is 0.1801 (11) Å above the N(3)O mean basal plane.

In the title compound, [CoBr(2)(C(14)H(24)N(4))]·Br, the Co(III) ion is located on an inversion centre and possesses a distorted octa-hedral coordination geometry in which four nitro-gen donors of the ligand mol-ecule are in the equatorial plane and two Br(-) ions occupy both the axial sites to give a trans isomer. The Br(- )counter- anion is also located on an inversion centre.

In the title polymeric coordination compound, [Sn(CH(3))(2)(C(2)H(2)ClO(2))Cl](n), the Sn atom has a distorted trigonal-bipyramidal geometry, with two O atoms of the ligands in axial positions and two methyl groups and one Cl atom in equatorial positions. Adjacent Sn atoms are bridged by the two O atoms of the carboxylate ligand, forming a chain structure along the a-axis direction.

In the title compound, [UO2(C5H7O2)2(C14H15N)], the uran-yl(VI) unit ([O=U=O](2+)) is coordinated to two acetyl-acetonate (acac) anions and one 1-phenyl-3-(pyridin-4-yl)propane (ppp) mol-ecule. The geometry around the U atom is UNO6 penta-gonal-bipyramidal; two uran-yl(VI) O atoms are located at the axial positions, whereas four O atoms from two chelating bidentate acac ligands and one N atom o...

The title complex, [Ir(C15H9Br2O2)(C13H8NS)2], lies about a crystallographic twofold rotation axis passing through the Ir(III) atom and the central C atom of the bis-(bromo-phen-yl)propane-1,3-dionate ligand. The Ir(III) atom adopts a distorted octa-hedral geometry coordinated by two N atoms in the axial positions, and two C and two O atoms in the equatorial plane. The dihedral angle between th...

In the centrosymmetric title compound, [Ni(N(3))(2)(C(22)H(34)N(6))], the Ni(II) ion is coordinated by the four secondary N atoms of the macrocyclic ligand in a square-planar fashion with two N atoms of the azide ions in axial positions, resulting in a tetra-gonally distorted octa-hedron. An N-H⋯N hydrogen-bonding inter-action between the secondary amine N atom of the macrocycle and an adjacent...

The title compound, [Fe(CF(3)O(3)S)(C(48)H(36)N(4)O(4))], is a five-coordinate iron(III) porphyrin complex with a trifluoro-methane-sulfonate anion as an axial ligand. The Fe(III) atom is displaced by 0.40 (1) Å towards the trifluoro-methane-sulfonate anion from the 24-atom mean plane of the porphyrin. The average Fe-N(p) distance is 2.044 (2) Å and the Fe-O distance is 2.001 (2) Å.

In the title complex, [Co(C(15)H(12)N(3)O(4))(2)Cl(C(6)H(7)N)], the Co(III) ion is coordinated by two N atoms and two O atoms from two deprotonated Schiff base ligands, one N atom from a 4-methyl-pyridine ligand and one Cl atom, forming a distorted octa-hedral geometry. The Co(III) ion is displaced by 0.038 (2) Å from the equatorial plane towards the axial Cl atom.