Download citation
Download citation

link to html
In the title complex, [Mg(C44H28N4)(C6H4N2)(H2O)], the Mg2+ cation is octa­hedrally coordinated and lies on an inversion center with the axially located 4-cyano­pyridine and aqua ligands exhibiting 50% substitutional disorder. The cyano-bound 4-cyano­pyridine mol­ecule also is disordered across the inversion centre. The four N atoms of the pyrrole rings of the dianionic 5,10,15,20-tetra­phenyl­porphyrin ligand occupy the equatorial sites of the octa­hedron [Mg—N = 2.0552 (10) and 2.0678 (11) Å] and the axial Mg—(N,O) bond length is 2.3798 (12) Å. The crystal packing is stabilized by weak inter­molecular C—H...π inter­actions.

Download citation
Download citation

link to html
In the title compound, [Mg(C44H28N4)(H2O)2]·C12H24O6, the MgII cation lies on an inversion center and is octa­hedrally coordinated by the four N atoms of the deprotonated tetra­phenyl­porphyrin (TPP) ligand and by two water mol­ecules. The asymmetric unit contains one half of the [Mg(TPP)(H2O)2] complex and one half of an 18-crown-6 mol­ecule. The average equatorial magnesium–pyrrole N atom distance (Mg—Np) is 2.071 (1) Å and the axial Mg—O(H2O) bond length is 2.213 (1) Å. The crystal packing is stabilized by two O—H...O hydrogen bonds between coordinating water mol­ecules and adjacent 18-crown-6 mol­ecules, and exhibits a one-dimensional supramolecular structure along the a axis. The supramolecular architecture is futher stabilized by weak C—H...π inter­actions. The 18-crown-6 mol­ecule is disordered over two sets of sites with an occupancy ratio of 0.8:0.2.

Download citation
Download citation

link to html
The title compound, [Cd(C44H28N4)(H2O)]·(C12H24O6), was made by the reaction of the [Cd(TPP)] with an excess of 18-crown-6 in chloro­benzene (where TPP is tetra­phenyl­porphyrinate). The CdII cation is chelated by a TPP anion and coordinated by a water mol­ecule in a distorted N4O square-pyramidal geometry, the CdII cation being displaced by 0.7533 (9) Å from the mean plane of four N atoms of TPP anion. The porphyrin core presents a significant distortion, the maximum atomic deviation from the 24-atom mean plane is 0.1517 (2) Å. The 18-crown-6 mol­ecule is linked with the CdII complex via classical O—H...O hydrogen bonds. In the crystal, weak C—H...π inter­actions link the complex and 18-crown-6 mol­ecules into a three-dimensional supra­molecular architecture.

Download citation
Download citation

link to html
In the title compound, [Zn(C44H28N4)]·C12H24O6, the ZnII ion lies on an inversion center and the asymmetric unit contains one half of a Zn(TPP) complex (TPP = 5,10,15,20-tetra­phenyl­porphyrin dianion) and one half of a centrosymmetric 18-crown-6 mol­ecule. The Zn(TPP) complex exhibits a nearly planar conformation of the porphyrin core [maximum deviation = 0.106 (2) Å] with an average Zn—N distance of 2.047 (2) Å. The title compound is considered as a one-dimensional polymer along [010], in which the Zn(TPP) moiety is linked to the closest O atoms of two symmetry-related 18-crown-6 mol­ecules with a Zn—O distance of 2.582 (1) Å, completing a distorted octahedral coordination environment of the metal ion. The chains are mainly sustained by weak C—H...π inter­actions. An ethyl­ene group of the 18-crown-6 mol­ecule is disordered over three sites with occupancies of 0.50, 0.25 and 0.25.
Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds