Unsupported intermolecular argentophilic interaction in the dimer of trinuclear silver(I) 3,5-diphenylpyrazolates Academic Article uri icon

abstract

  • The reaction of a solution of sodium 3,5-diphenylpyrazolate, Na[Ph 2pz], with Ag(tht)NO3 in dichloromethane affords thin needles of unsolvated and light-stable dimer of trimers [Ag3(-3, 5-Ph2pz)3]2. The complex is characterized by X-ray crystallography and elemental analysis. The two trimers are rotated anti to each other. Three silver atoms bridged through exobidentate pyrazolate groups form a slightly puckered nine-membered ring with the shortest AgAg intramolecular interaction in the metallocycle of 3.3571(8) . The other two silver centers are weakly interacting, Ag(3)Ag(1) = 3.49 and Ag(3)Ag(2) = 3.52 . The intermolecular interaction between the two trimers is AgAg = 2.9712(14) . Packing diagram shows the dimer of trimer units are independent. Density Functional Theory calculations show that the MM interaction is due to dispersion forces. [Ag 3(-3,5-Ph2pz)3]2 crystallizes in the monoclinic space group C2/c with a = 22.169(4), b = 15.269(3), c = 22.482(5) , = 103.69(3)and V = 7394(3) 3. 2004 Elsevier B.V. All rights reserved.

published proceedings

  • INORGANICA CHIMICA ACTA

author list (cited authors)

  • Mohamed, A. A., Perez, L. M., & Fackler, J. P.

citation count

  • 78

complete list of authors

  • Mohamed, Ahmed A||Pérez, Lisa M||Fackler, John P

publication date

  • March 2005