Crystal structures of triorganophosphinegold(I) O-cyclohexyldithiocarbonates: R₃PAu(S₂CO-c-C₆H₁₁), R = Et, Ph and c-hexyl

Abstract

The crystal structures of the title compounds R

Crystal structure of (O-ethyldithiocarbonato)(triphenylphosphine)gold(I), (C6H5)3PAu(S2COC4H9)

“…These Au-Au contacts occur between molecules that are related to each other by a two-fold axis of symmetry so that ¿(Au -Au) = 3.2531(3) A; symmetry operation -x, y, Yi-z. Similar Au-Au interactions are found in only two other R3PAu(S2COR') structures, namely R = Ph and R' = nPr [2] and R = Et and R' = Cy [3]. The orientation of the xanthate ligand in the title structure is as originally reported for Ph3PAu(S2COMe) [4], …”

Crystal structure of (O-ethyldithiocarbonato)(triphenylphosphine)gold(I), (C6H5)3PAu(S2COC4H9)

“…These Au···Au contacts occur between molecules that are related to each other by a two-fold axis of symmetry so that d(Au···Au) = 3.2531(3) Å; symmetry operation -x, y, ½-z. Similar Au···Au interactions are found in only two other R 3PAu(S2COR¢) structures, namely R = Ph and R¢ = nPr [2] and R = Et and R¢ = Cy [3]. The orientation of the xanthate ligand in the title structure is as originally reported for Ph 3PAu(S2COMe) [4].…”

“…Similar Au···Au interactions are found in only two other R 3PAu(S2COR¢) structures, namely R = Ph and R¢ = nPr [2] and R = Et and R¢ = Cy [3]. The orientation of the xanthate ligand in the title structure is as originally reported for Ph 3PAu(S2COMe) [4].The adoption of the ¢S,O¢ coordination mode for the xanthate ligand in the R 3PAu(S2COR¢) structures, over the expected but, less frequently observed ¢S,S¢ coordination mode, has been ascribed to global crystal packing considerations [3,5]. …”

“…The adoption of the ¢S,O¢ coordination mode for the xanthate ligand in the R 3PAu(S2COR¢) structures, over the expected but, less frequently observed ¢S,S¢ coordination mode, has been ascribed to global crystal packing considerations [3,5].…”

Crystal and Molecular Structure of Dichloro(ethylenediamine)gold(III) Nitrate: [Au(NH2CH2CH2NH2)Cl2]NO3

“…In the present structure, a similar Au⋯O(nitrate) i contact of 2.999(5) Å is found (symmetry operation i: ½ − x , −½ + y , z ). Such close Au⋯O contacts are well known in gold chemistry, but are not considered to represent significant bonding interactions [17–19]. In the same vein, a weak intermolecular Au⋯Cl2 ii contact of 3.3132(17) Å is found, ii: ½ − x , ½ + y , z .…”