Synthesis of gold(I) fluoroalkyl and fluoroalkenyl-substituted phosphine complexes and factors affecting their crystal packing.
A series of gold(I) phosphine complexes of the type [AuCl{PR(2)(R(f))}] (R = Et, i-Pr, Cy; R(f) = CF = CF(2); R = Ph, R(f) = C = CFH, CCl = CF(2), C ≡ CCF(3), CF(3), i-C(3)F(7), s-C(4)F(9)) have been prepared and most have been structurally characterised. All of the complexes are monomeric in the solid state, and a number of secondary interactions are observed--including short intramolecular AuF distances, metal-bound Au-ClH non-classical hydrogen bonds, fluorous domains and phenyl embraces. Only in the case of [AuCl{PEt(2)(CF = CF(2))}] is an aurophilic interaction with an AuAu contact less than the sum of the van der Waals radii observed. Even then, the distance, 3.3458(10) Å, is longer than that previously observed for the related complex with R = Ph; R(f) = CF = CF(2).
School of Chemistry, University of Manchester, Manchester.
Nicholas A
NA
Barnes
Alan K
AK
Brisdon
F R
FR
William Brown
Wendy I
WI
Cross
Ian R
IR
Crossley
Cheryl
C
Fish
Christopher J
CJ
Herbert
Robin G
RG
Pritchard
John E
JE
Warren
D018360:Crystallography, X-Ray; D008958:Models, Molecular; D050607:Organogold Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010720:Phosphines / Q000138:chemical synthesis / Q000737:chemistry*
D050607:Organogold Compounds; D010720:Phosphines; C044646:phosphine