Crystal structure of trans-bis(phenylethynyl)bis(triethylphosphine)nickel(II), [PEt3]2Ni(C:CPh)2

The crystal and molecular structure of (I): μ-(α,ω-octadi-π-enyl)-bisbromotriisopropylphosphinenickel(II) and (II): μ(α,ω-octadi-π-enyl)-bisbromodiphenylphosphinoethanenickel(II)

“…In the phosphine ligand the P-C bond lengths (mean 1.85 A) and the C-C bond length (mean 1.55 A) are similar to the corresponding lengths of 1.86 A and 1.55 A found in (Ph-C=-C)zNi[P(C2Hs)3]2, (Spofford et al, 1967). The C-P-C angles of 103.8, 111.4 and 103.2 ° (mean 106.1 °) are rather less than the tetrahedral angle but this usually is observed among metal phosphine complexes.…”

Vibrational Spectroscopic Investigation of Rigid-Rod Platinum σ-Acetylide Polymers Containing Variable Acetylenic Microstructures

“…For any angle between these two extremes, the point group symmetry is C 2 h , also a centrosymmetric group. Crystallographic studies of the simple monomeric or dimeric complexes have universally shown that the latter is the case in the solid, state. ,,− However, solid-state NMR experiments have implied considerable motion within these units. No crystal data are available for the polymers or any related oligomeric species.…”

Crystal and molecular structure of dibromotris(trimethylphosphine)nickel(II). Electronic structures and stereochemistries of the complexes [NiX2(PMe3)3]

“…A listing of structure factor amplitudes will appear following these pages in the microfilm edition of this volume of the journal. Photocopies of the supplementary material from this paper only or microfiche (105 X 148 mm, 24 X reduction, negatives) containing all of the supplementary material for the papers in this issue may be obtained from the Journals Department, American Chemical Society, 1155 16th St., N.W., Washington, D. C. 20036. Remit check or money order for $3.00 for photocopy or $2.00 for microfiche, referring to code number JACS-74-4428.…”