Crystal structure of bis­(1,3-bis­{[(1H-pyrrol-2-yl)methyl­idene]amino-κN}propan-2-olato-κO)manganese(III) nitrate methanol monosolvate

The Mn^III ion in the title compound shows a slightly distorted octa­hedral coordination geometry with two O and four N atoms of the pyrrolyl derivative ligand. In the crystal, inter­molecular N—H...O hydrogen bonds between the pyrrole group of the ligand and the uncoordinated nitrate ion give a chain structure along [10].

Bis[trans-di­fluorido­tetra­kis­(pyridine-κN)chromium(III)] sodium tetra­chlorido­zincate perchlorate from synchrotron data

The title salt, Na[CrF₂(C₅H₅N)₄]₂[ZnCl₄]ClO₄, consists of two cationic Cr^III complexes, an Na⁺ cation, one [ZnCl₄]²⁻ anion and one ClO₄⁻ anion. The Cr^III atoms are coordinated by four pyridine (py) N atoms and two F atoms in a trans arrangement, displaying a distorted octa­hedral geometry. The mean Cr—N(py) and Cr—F bond lengths are 2.086 (8) and 1.864 (14) Å, respectively. The [ZnCl₄]²⁻ anion has a distorted tetra­hedral geometry. The most notable feature of the crystal packing is the formation of weak pyridine–perchlorate C—H...O hydrogen bonds, resulting in supra­molecular chains along the b-axis direction. The perchlorate anion was disordered over two sets of sites in a 0.868 (3):0.132 (3) ratio.