The Crystal and Molecular Structure of Bis(acetylacetonato)nickel (II)

Bullen, G. J.; Mason, Roger A.; Pauling, Peter

doi:10.1021/ic50026a005

Cited by 211 publications

(81 citation statements)

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“…The situation may be similar to that which exists in the trimeric molecule of bis-(acetylacetonato)nickel(II) where octahedral configuration is achieved by adjacent octahedra sharing three oxygen atoms. This means that the three nickel atoms are held at a distance of 2.90 A apart by geometric factors alone (Bullen, Mason & Pauling, 1965). There is no magnetic evidence of metal-metal bonding in this case, as the moment is 3.20fl, which is normal for spinfree nickel(II) complexes with octahedral configuration (Cambi & Szego, 1931).…”

Section: Metal-metal Bondsmentioning

confidence: 90%

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The structure of 2,2'-dimercaptodiethylsulphidenickel(II). A dimeric molecule containing bridging sulphur atoms

Barclay¹,

McPartlin²,

Stephenson³

1969

Acta Crystallogr Sect B

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2,2'-Dimercaptodiethylsulphidenickel(II) crystallizes in the orthorhombic system, space group Pbca, with lattice constants a = 9.46 + 0.05, b = 10.93 + 0.05, and c = 28-80 + 0.15 A. The intensities of threedimensional equi-inclination Weissenberg data were estimated visually and the structure was solved by Patterson and Fourier techniques. Refinement of atomic parameters was determined by the method of least squares. The molecules are dimeric with a formula unit Ni2S6CsH16. Each of the nickel atoms in the dimer is surrounded by four sulphur atoms in approximately square-planar arrangement, and one thiol sulphur of each ligand molecule is shared between a pair of nickel atoms forming two sulphur bridges. Ni-S bond lengths vary between 2.15-2.22 A, the bridging bonds being longer than the terminal. The dimeric molecules are bent at the sulphur bridges and the dihedral angle between the mean planes of the sulphur atoms is 82 ° 18'. The bending of the molecule brings the two nickel atoms into unusually close proximity (2.73 A) and the shape of the molecule is discussed in terms of metal-metal bonding and the steric requirements of the ligand.

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Section: Metal-metal Bondsmentioning

confidence: 90%

“…UTECOM, an English electric DEUCE computer, was used for all calculations except the least-squares procedure, for which an IBM 7040 computer of the Australian Atomic Energy Commission was used. The programs used were those of Rollett (1961) and Busing, Martin & Levy (1962), respectively.…”

Section: Refinementmentioning

confidence: 99%

The structure of 2,2'-dimercaptodiethylsulphidenickel(II). A dimeric molecule containing bridging sulphur atoms

Barclay¹,

McPartlin²,

Stephenson³

1969

Acta Crystallogr Sect B

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“…The structure does not have any remarkably short intermolecular contacts. The shortest intermoleeular distance is between two centrosymmetrically related thiomethyl sulfurs (3.6 A), which is exactly the sum of the van der Waals radii for sulfur; contrary to the trimeric Ni(acac)2 (Bullen, Mason & Pauling, 1965) and as previously found in Ni(sacsac)2 (Beekett & Hoskins, 1974), this structure is composed of the monomeric molecules. Introduction.…”

mentioning

confidence: 52%

Structure of the square-planar complex bis(dimethyl tetrathiomalonato)nickel(II)

Srdanov¹,

Jacobson²,

Wudl³

1990

Acta Crystallogr C

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“…The spectrum of Ni[Al(O-i-Pr,(acac)& again depicts bands characteristic of an octahedral as well as a tetrahedral form, which appears to be much more predominant. The spectrum of the product with the composition Ni[Al(acac),], is almost identical with that of the pure octahedral Ni(acac), (13), and shows it to be a mixture of Ni(acac), and Al(acac),.…”

Section: Tetrahedral Octahedralmentioning

confidence: 86%

Synthesis, spectroscopic, and magnetic studies of new alkoxy and allied bimetallic derivatives of nickel(II) with aluminium

Mehrotra¹,

Singh²

1984

Can. J. Chem.

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Nickel(II) tetraisopropoxyaluminate undergoes alcoholysis reactions with various alcohols and acetylacetone to yield products with the composition: Ni[Al(OR)4]2 (when ROH = methanol, ethanol, 2,2,2-trifluoroethanol, 2,2,2-trichloroethanol, n-butanol, and 1,3-dichloro-2-propanol); Ni[Al(O-i-Pr)(O-t-Bu)3]2 (with tertiary butyl alcohol); Ni[Al(O-i-Pr)2(O-t-Am)2]2 (with tertiary amyl alcohol); and Ni[Al(O-i-Pr)2(acac)2] (with acetylacetone). On the basis of their visible reflectance and infrared spectra along with molecular weights and magnetic susceptibilities, and octahedral geometry is tentatively suggested for these complexes in the solid state with indications of an equilibrium between tetrahedral and octahedral forms in solution. The alkoxy ligands have also been fitted into the spectrochemical and nephelauxetic series.

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The Crystal and Molecular Structure of Bis(acetylacetonato)nickel (II)

Cited by 211 publications

References 0 publications

The structure of 2,2'-dimercaptodiethylsulphidenickel(II). A dimeric molecule containing bridging sulphur atoms

The structure of 2,2'-dimercaptodiethylsulphidenickel(II). A dimeric molecule containing bridging sulphur atoms

Structure of the square-planar complex bis(dimethyl tetrathiomalonato)nickel(II)

Synthesis, spectroscopic, and magnetic studies of new alkoxy and allied bimetallic derivatives of nickel(II) with aluminium

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