Complexation of [ω-diphenylphosphinoalkyl]diphenylphosphine sulphides with AgNO3

Hemilability and nonrigidity in metal complexes of bidentate P,PS donor ligands

“…The known P,P@S ligands a [42], b [43], c [15], d [44], were prepared in analogy to the published method [30] and characterization data was in accord with that previously reported. The complex 2a has previously been prepared with other counter ions [45].…”

Oxidation of a One‐Dimensional Coordination Polymer and Synthesis of the Macrocyclic Silver Complex [Ag12(PhS2P−PS2Ph)6(dppeS)6]

“…The dppe ligands present in solution were oxidised to Ph 2 P(CH 2 ) 2 P(S)Ph 2 (δ PϭS ϭ 45.6 ppm, 3 J P,P ϭ 58 Hz). [7] In 1, the P III centres of the dppe ligands and Ph 2 P(CH 2 ) 2 P(S)Ph 2 are identified by a broad singlet resonance (δ ϭ 0.6 ppm) (PϪAg coupling has not been resolved). [7,5] In order to gain further mechanistic insight and to understand the formation of the [PhS 2 (2) [dppeS ϭ Ph 2 P(CH 2 ) 2 P(S)Ph 2 ] (Scheme 1).…”

“…[7] In 1, the P III centres of the dppe ligands and Ph 2 P(CH 2 ) 2 P(S)Ph 2 are identified by a broad singlet resonance (δ ϭ 0.6 ppm) (PϪAg coupling has not been resolved). [7,5] In order to gain further mechanistic insight and to understand the formation of the [PhS 2 (2) [dppeS ϭ Ph 2 P(CH 2 ) 2 P(S)Ph 2 ] (Scheme 1). Initially, this was realised because the amount of crystalline precipitate in the reaction mixtures containing crystals of 1 increased, and a closer look revealed that only crystalline blocks of 2 were present.…”

Regioselectivity and memory effects in palladium catalyzed allylic alkylations with bidentate P^PS donor ligands

“…[Pd(h 3 -C 3 H 5 )Cl] 2 [56], complexes 1a [38], 1b [11], 1c [15], 1e [10], 1f [11], 1g [15], and 1i [15], were prepared by published methods. The previously known P^P]S ligands a [57], b [11], c [58], d [58], e [10], f [11], g [59], and i [15], were prepared in analogy to the published method [41] and characterization data were in accord with those previously reported. Pentane and diethyl ether were used as received.…”