Metal-Olefin Compounds. VII. The Crystal and Molecular Structure of Cyclo-tetra-μ-chloro-tetrakis[bicyclo[2.2.1.]hepta-2π,5- dienecopper(I)]

Etude structurale de Cu2CI2.NCHC = CH2

“…Grfice au d~veloppe-ment des analyses structurales par rayons X, on a pu mettre en ~vidence et &udier de telles liaisons. Dans le domaine des halog6nures de cuivre(I), nous pouvons citer l'&ude de CuCl.cyclooctadi~ne-l,5 (Van den Hende & Baird, 1963), de CuCl.cyclooctat&ra6ne (Baenziger, Richards & Doyle, 1964), CuCl.norbornadi6ne (Baenziger, Haight & Doyle, 1964), CuCl.trans-cyclooct6ne (Ganis, Lepore & Martuscelli, 1970). Dans tous ces compos6s, la mol&ule organique est exclusivement li& au cuivre par une ou plusieurs liaisons m&al--ol~fine.…”

Copper(I) halide complexation to norbornene: (CuCl)5(norbornene)4: A complex of novel structure

“…Each copper atom is further bound to the 7r electrons of a norbomene molecule (Cu--C, 2.16(3) it). The structure is thus similar to that observed for CuC1 bound to 1,5-norbomadiene (Baenziger, 1964b). tions for decomposition were deemed unnecessary.…”

“…Each copper atom is three coordinate, being additionally bound to one double bond of the olefin. The carbon atoms of the olefin lie in the plane of the CuC12 group (Baenziger et al, 1964b). An eight membered step shaped ring has been observed for [CuCl(dibenzocyclooctatetraene)] 4 with each copper atom involved in two 7r bonds to a single cyclooctatetraene molecule (Mak et al, 1983).…”

Vibrational spectra of norbornadiene and the group VIB tetracarbonyl‐(norbornadiene) metal(0) complexes

“…There have been a few X-ray studies on the complexed ligand, e.g., [(NBD)CuCl], [30] and (NBD)PdCI, [31]; in both of these crystal structures, the norbornadiene retains its C , , symmetry. In the present study, taking the C-H and C=C stretching regions as vibrational monitors for the stereochemistry of the norbornadiene ligand, it is apparent from the vibrational data that there are no significant changes in the geometry of the norbornadiene ligand upon complexation.…”