253144-10-4Relevant academic research and scientific papers
Synthesis and characterization of the lithium organoargentate salts [Li(THF)4][Ag(Triph)2]·THF and [Li(THF)4][Ag(C6H3-2,6-Mes2) 2]·1/8OEt2 (Triph=-C6H2-2,4,6-Ph3; Mes=C6H2-2,4,6-Me3)
Hwang, Cheong-Soo,Power, Philip P.
, p. 234 - 238 (1999)
The synthesis and structural characterization of the new metal-terphenyl derivatives [Li(THF)4][Ag(Triph)2]·THF (1, Triph=C6H2-2,4,6-Ph3) and [Li(THF)4][Ag(C6H3-2,6-Mes2) 2]·1/8 Et2O (2, Mes=C6H2-2,4,6-Me3) are described. Both compounds crystallize as solvent separated ion pairs that are composed of THF solvated Li+ cations and argentate anions. The Li+ cations are approximately tetrahedrally coordinated by four THFs in both structures. The silvers are essentially linearly coordinated by ipso-carbons of the aryl ligands with Ag-C distances in the range 2.048(15) to 2.112(10) A with an average distance near 2.10 A. These bond lengths clearly demonstrate that silver terphenyl complexes have a metal carbon distance that is ca. 0.2 A longer than those in related copper complexes. Crystal data at 130 K with Cu-Kα (λ=1.54178 A) radiation: 1, a=14.440(3), b=18.670(4), c=21.550(4) A, β=104.25(3)°, Z=4, monoclinic, space group P21/n, R1=0.0741 for 4589 (I>2(σ)I) data, 2, a=22.395(5), b=16.262(3), c=33.877(7) A, β=104.79(3)°, Z=8, monoclinic, space group P21/n, R1=0.1288 for 7553 (I>2(σ)) data.
