Synthesis, crystal structure and characterizations of di-μ-cyanido-1:2κ2N:C;2:3κ2C:N-bis(4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane)-1κ8N1,N10,O4,O7,O13,O16,O21,O24;3κ8N1,N10,O4,O7,O13,O16,O21,O24-[5,10,15,20-tetrakis(4-chlorophenyl)porphyrinato-2κ4N]-2-iron(II)-1,3-dipotassium(I) tetrahydrofuran disolvate with an unknown solvent

oleh: Tingting Huang, Haimang Wang, Jianping Zhao

Format: Article
Diterbitkan: International Union of Crystallography 2019-12-01

Deskripsi

The title compound, [Fe(C44H24N8Cl4)(CN)2][K2(C18H36N2O6)2]·2C4H8O was synthesized and characterized by single-crystal X-ray diffraction as well as FTIR and UV–vis spectroscopy. The central FeII ion is coordinated by four pyrrole N atoms of the porphyrin core and two C atoms of the cyano groups in a slightly distorted octahedral coordination environment. The complex molecule crystallizes with two tetrahydrofuran solvent molecules, one of which was refined as disordered over two sets of sites with refined occupancies of 0.619 (5) and 0.381 (5). It has a distorted porphyrin core with mean absolute core-atom displacements Ca, Cb, Cm and Cav of 0.32 (3), 0.22 (3), 0.56 (2) and 0.37 (14) Å, respectively. The axial Fe—Ccyano bond lengths are 1.991 (2) and 1.988 (2) Å. The average Fe—Np (Np is a porphyrin N atom) bond length is 1.964 (10) Å. One of the O atoms and several C atoms of the 222 moiety [222 = 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane] were refined as disordered over two sets of sites with occupancy ratios of 0.739 (6):0.261 (6) and 0.832 (4):0.168 (4). Additional solvent molecules were found to be highly disordered and their contribution to the scattering was removed using the SQUEEZE procedure in PLATON [Spek (2015). Acta Cryst. C71, 9–18], which indicated a solvent cavity of volume 372 Å3 containing approximately 83 electrons. These solvent molecules are not considered in the given chemical formula and other crystal data.