2. Mohammad A. Omary Department of Chemistry, University of North Texas (from my post-doctoral work with Professor John Fackler at Texas A&M University)

3. Gold Starting material in Fackler’s lab

4. Trinuclear Au(I) Complexes, TRAu: TRAu + M +  ??? M=Ag; Tl

5. IT’S A WHOPPER!!

7. Synthetic Strategy Burini; Fackler; Omary’s; Staples et al. Inorg. Chem.2000, 39, 3158. TRAu + M +  {(TRAu) 2 M + } 

8. Burini; Fackler; Omary; Staples, et al. Inorg. Chem.2000, 39, 3158.

10. * Nucleophilic or basic character to the trinuclear gold complexes. Analogy with cation-  interactions: Dennis A. Dougherty, Science 1996, 271, 163. Why not a neutral Lewis acid ? - TRHg:Hg 3 (C 6 F 4 ) 3

11. OR Intercalates TRHg {(TRAu) 2 (TRHg)} 

12. SUPER WHOPPER!!

13. Burini; Fackler; Omary; Staples et al. J. Am. Chem. Soc. 2000, 122, 11264-11265. SUPRAMOLECULAR CHAIN ASSEMBLIES

14. {(TR(carb)) 2 (TRHg)} 

16. DFT Calculations of Trinuclear Complexes Electrost. Pot. (a.u.) -0.0300 0.0300 [Au(bzim)] 3 [Hg(C 6 F 4 )] 3

17. green = positive [Au(bzim)] 3 red = negative Electrostatic Potential Surfaces  Electrostatic interaction

18. ADF Calculations [Au(carb)] 3 MONOMER -15 Electrost. Pot. (kcal) +15

19. ADF Calculations {[Au(carb)] 3 } 2 DIMER -15 Electrost. Pot. (kcal) +15 Full Range (kcal/mol): +23  -46 for dimer +22  -34 for monomer

20. AD F Calculations {[Au(carb)] 3 } 2 DIMER Green= positive Red=negative

22. Raman spectrum of a solution of TR(carb) in CH 2 Cl 2 at RT

23. Perhaps, closed-shell metallophilic interactions play a role in stabilizing the supramolecular structure!! Ultimate test for the basic behavior: ==> ORGANIC LEWIS ACIDS: C 6 F 6 ; TCNQ

24. 3.152 Å Intramolecular Au…Au: 3.475; 3.471; 3.534 Å 3.152 Å Charge transfer complex indicated by: - shortening of Au..Au - intense color…. Omary; Fackler et al. J. Am. Chem. Soc. 2001, 123, 9689-9691.