journal menu
metal-organic compounds
The crystal structure of the title compound, poly[μ2-chloro-μ2-dioxane-κ2O:O′-lithium(I)], [LiCl(C4H8O2)]n, displays a three-dimensional diamondoid network composed of Li—Cl and Li—O interactions. Each metal centre is similarly surrounded by two dioxane molecules and two chlorine atoms. The Li—O coordination is propagated along the c axis, forming a one-dimensional chain, and the three-dimensional structure is completed by Li—Cl interactions parallel to the ab plane. Principal dimensions include Li—Cl distances of 2.3115 (10) and 2.3270 (11) Å and Li—O distances of 1.9574 (10) and 1.9981 (11) Å.
metal-organic compounds
The title compound, bis(tetrahydrofuran)(5,10,15,20-tetra-p-tolylporphyrinato)iron(II), [Fe(C48H36N4)(C4H8O)2] or [Fe(TTP)(THF)2] (TTP = dianion of meso-tetratolylporphyrin), is a six-coordinate high-spin iron(II) tetratolylporphyrin with two tetrahydrofuran molecules as axial ligands. The FeII atom is at an inversion center. The average Fe-N distance is 2.067 (7) Å and the Fe-O distance is 2.3208 (8) Å.
metal-organic compounds
The molecular structure of the title cytochrome b model, (5-methyl-4H-imidazole)(5,10,15,20-tetraphenylporphyrinato)iron(II) bis[(222-cryptand)potassium(I)] dichloride, [Fe(C44H28N8)(C4H6N2)2][K(C18H36N2O6)]2Cl2 or [Fe(TPP)(4-MeHIm)2][K(222-cryptand)]2Cl2, is reported. This low-spin FeII tetraphenylporphyrinate is cocrystallized with the salt [K(222-cryptand)]Cl. The crystal structure has iron(II) on an inversion center. The average Fe-Np bond is 1.9952 (8) Å and the Fe-NIm distance is 2.0154 (8) Å. The porphyrin core is saddled; the two imidazole rings have a relative parallel orientation (Np = porphyrinate N atom and Im = imidazole).
metal-organic compounds
The asymmetric unit of the title compound, [CaI2(C4H8O)4], at 100 K comprises half each of two independent molecules, each of which is located on a center of inversion, and in each of these, the central Ca atom is bound by two trans I atoms and four tetrahydrofuran molecules to give a distorted octahedral geometry. This compound undergoes a phase change on cooling from room temperature to 100 K, altering the space group from monoclinic P21/c to triclinic P
. This change is also accompanied by a reduction in the positional disorder of the coordinated tetrahydrofuran molecules.
. This change is also accompanied by a reduction in the positional disorder of the coordinated tetrahydrofuran molecules.
