The Crystal and Molecular Structure of Aquachloro (<i>meso</i>-tetraphenylporphyrinato)cobalt(III)

Abstract

Abstract The crystal and molecular structure of the title compounds, [CoIIICl(tpp)(H2O)], has been determined by means of X-ray diffraction techniques. The compound crystallizes in the monoclinic system; space group P21⁄c. The unit cell has a=13.542(2), b=25.760(2), c=10.423(1) Å, β=99.33(2)°, and Z=4. The cobalt atom is coordinated by four porphyrinato nitrogen atoms, one chlorine atom, and one oxygen atom of water, and is displaced by 0.039(2) Å from the mean plane defined by the four porphyrinato nitrogen atoms towards the axial chlorine atom. The average Co–N(tpp) distance is 1.955(2) Å. The Co–Cl distance is 2.216(1), and the Co–O(water) distance, 1.979(3) Å. The porphyrinato core is significantly ruffled and has an approximate \bar4 symmetry. The [CoIIICl(tpp)(H2O)] molecules are stacked along the c axis by O–H···Cl hydrogen bonds.