Notizen: Darstellung und Kristallstruktur von α- und β-Cu3TiO4 / Preparation and Crystal Structure of α- and β-Cu3TiO4

1977 ◽  
Vol 32 (11) ◽  
pp. 1356-1357 ◽  
Author(s):  
Klaus-Jürgen Range ◽  
Fritz Ketterl

A compound Cu3TiO4 was found to exist in the ternary system CuO-Cu2O-TiO2. The crystal structures of two modifications are very similar and contain Cu+ with linear, Cu2+ and Ti4+ with trigonal distorted octahedral coordination.

1992 ◽  
Vol 47 (4) ◽  
pp. 594-596 ◽  
Author(s):  
Rolf Minkwitz ◽  
Andreas Kornath ◽  
Hans Preut

Chlorosulfonium hexachloroantimonate crystallizes in the monoclinic space group C 2/m with a = 1405.5(3) pm, b = 1055.1(2) pm , c = 882.2(2) pm, β = 110.05(3)° at 169 K with 4 formula units per unit cell. A distorted octahedral coordination around sulphur is formed by three S - C l bonds and three interionic sulphur chlorine contacts. The interionic interactions in SCl3+ salts of known crystal structures are discussed.


Author(s):  
Joseph S. Merola ◽  
Marion A. Franks

The crystal structures of two solvates offac-trichloridotris(trimethylphosphane-κP)rhodium(III) are reported,i.e.one with water in the crystal lattice,fac-[RhCl3(Me3P)3]·H2O, and one with methanol in the crystal lattice,fac-[RhCl3(Me3P)3]·0.5CH3OH. These rhodium compounds exhibit distorted octahedral coordination spheres at the metal and are isotypic with the analogous iridium compounds previously reported by us [Merolaet al.(2013).Polyhedron,54, 67–73]. Comparison is made between the rhodium and iridium compounds, highlighting their isostructural relationships.


2017 ◽  
Vol 73 (9) ◽  
pp. 1279-1281 ◽  
Author(s):  
Andrew J. Peloquin ◽  
Madelyn B. Smith ◽  
Gary J. Balaich ◽  
Scott T. Iacono

The title compound, [IrCl(C12H8NO)2{(CH3)2SO}]·H3CCN or [IrCl(fppy)2(DMSO)]·H3CCN [where fppy is 4-(pyridin-2-yl)benzaldehyde and DMSO is dimethyl sulfoxide], is a mononuclear iridium(III) complex including two fppy ligands, a sulfur-coordinating DMSO ligand, and one terminal chloride ligand that define a distorted octahedral coordination sphere. The complex crystallizes from 1:1 DMSO–acetonitrile as an acetonitrile solvate. In the crystal, weak C—H...O and C—H...N hydrogen-bonding interactions between adjacent complexes and between the acetonitrile solvent and the complex consolidate the packing.


2014 ◽  
Vol 70 (11) ◽  
pp. m385-m386
Author(s):  
Rachel L. Nicholls ◽  
Christopher M. Pask ◽  
Bao Nguyen

The title compound [Na3(C11H6NO3)2(C2H3O2)]n, crystallized through diffusion of diethyl ether into methanol as needles. There are three crystallographically independent Na+cations present, each exhibiting a distorted octahedral coordination geometry, two through coordination by five O atoms and one N atom, and one through coordination by six O atoms. A series of intermolecular O...Na and N...Na contacts leads to the formation of chains along thea-axis direction.


1997 ◽  
Vol 52 (11) ◽  
pp. 1291-1295 ◽  
Author(s):  
Susanne Rabe ◽  
Ulrich Müller

While TiCl4 and Na2S4 react in in the presence of PPh4Cl in dichloromethane to yield (PPh4)2[TiSCl4]·2CH2Cl2, we obtained [Ti4O6(OSMe2)12]Cl4·5Me2SO · 1/2H2O (1) from the same reactants in dimethylsulfoxide. Compound 1 is only stable in the presence of dimethylsulfoxide. The crystal structure determination at 153 K shows the presence of cations having an adamantane-like Ti4O64+ skeleton with three Me2SO molecules coordinated to each Ti atom via their O atoms. Crystal data: monoclinic, P 21/n, Z = 4, a = 1096.9, b = 3097, c = 2342.7 pm, β = 93.90° (at -120 °C; R = 0.087 % for 4098 reflections). In an attempt to produce the same compound only from TiCl4 and Me2SO, [TiO(OSMe2)5]Cl2 was obtained. Its cation has a rather short Ti=O bond (164.8 pm) and a distorted octahedral coordination of the titanium atom. The crystals are triclinic, P1̄, Z = 2, R = 0.050 for 2063 reflections measured at 153 K.


2014 ◽  
Vol 70 (12) ◽  
pp. 483-485
Author(s):  
Olgerd O. Shtokvish ◽  
Lyudmila I. Koval ◽  
Vasyl I. Pekhnyo

The title complex, systematic name hexakis(μ2-4-tert-butoxy-4-oxobut-2-en-2-olato)-1:2κ9O2,O4:O2;2:3κ9O2,O4:O2-trizinc, [Zn3(C8H13O3)6], synthesized fromtert-butyl acetoacetate and diethylzinc, consists of trinuclear centrosymmetric molecules of an approximateC3isymmetry. The three metal cations are arranged in a linear fashion, with the central ZnIIatom located on a centre of symmetry. All three metal cations exhibit a distorted octahedral coordination geometry. The terminal ZnIIcations are chelated by threetert-butyl acetoacetate ligands and these units are connected to the central ZnIIatom by the bridging enolate O atoms.


Author(s):  
Mehmet Poyraz ◽  
Musa Sarı

In the title compound, [Cu(CH3COO)2(C9H8N2O)2]n, the CuIIion resides on a centre of inversion, displaying a tetragonally distorted octahedral coordination environment defined by two pairs of N and O atoms of symmetry-related 4-(1H-imidazol-1-yl)phenol ligands and the O atoms of two symmetry-related acetate ligands. The bridging mode of the 4-(1H-imidazol-1-yl)phenol ligands is associated with a very long Cu...O interactions involving the phenol O atom of the heterocyclic ligand, which creates chains extending parallel to [100]. In the crystal, the chains are arranged in a distorted hexagonal rod packing and are linkedviaC—H...O hydrogen bonds and by π–π stacking interactions involving centrosymmetrically related pairs of imidazole and phenol rings.


2017 ◽  
Vol 73 (11) ◽  
pp. 1704-1707
Author(s):  
Chao-Jun Du ◽  
Xiao-Na Zhao

In the title compound, [Co(C11H12NO6P)(C6H5N3)2]·C6H5N3, the 2,2′-[N-(phenylphosphorylmethyl-κO)azanediyl]diacetate dianionN,O,O′,O′′-chelates the CoIIcation and two 1H-benzo[d][1,2,3]triazole molecules coordinate to the CoIIcation to complete the slightly distorted octahedral coordination. In the crystal, classical O—H...O, N—H...O hydrogen bonds and weak C—H...N hydrogen bonds link the molecules into a three-dimensional supramolecular architecture. π–π stacking between the triazole and benzene rings and between the benzene rings is also observed in the crystal.


2014 ◽  
Vol 70 (7) ◽  
pp. 9-13
Author(s):  
C. John McAdam ◽  
Stephen C. Moratti ◽  
Brian H. Robinson ◽  
Jim Simpson ◽  
Roderick G. Stanley

The title compounds, [Co2(C8H11BrO3)(CO)6], (1), and [Co2(C12H16Br2O4)(CO)6], (2), result from the replacement of two carbonyl ligands from dicobalt octacarbonyl by the alkynes 4-hydroxybut-2-ynyl 2-bromo-2-methylpropanoate and but-2-yne-1,4-diyl bis(2-bromo-2-methylpropanoate), respectively. Both molecules have classic tetrahedral C2Co2cluster cores with the CoIIatoms in a highly distorted octahedral coordination geometry. The alkyne ligands both adopt acis-bent conformation on coordination. In the crystal structure of (1), classical O—H...O and non-classical C—H...O contacts form inversion dimers. These combine with weak O...O and Br...O contacts to stack the molecules into interconnected columns along theb-axis direction. C—H...O and C—H...Br contacts stabilize the packing for (2), and a weak Br...O contact is also observed. Interconnected columns of molecules again form along theb-axis direction.


2006 ◽  
Vol 62 (7) ◽  
pp. m1668-m1670 ◽  
Author(s):  
Yamei Pei ◽  
Li Wang

In the title compound, [Ni(C9H10NO3)(C6H18N4)]I·2H2O, the NiII atom is in a slightly distorted octahedral coordination environment. In the crystal structure, extensive hydrogen bonding links molecules into a three-dimensional network.


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