Ligation of phosphorus ligands to silver(I). 2. Electronic and steric effects in the coordination of one to four P(OR)3 and PR3 ligands

NHC‐Mediated Synthesis of an Asymmetric, Cationic Phosphoranide, a Phosphanide, and Coinage‐Metal Phosphanido Complexes

“…The broadening is attributed to the fast quadrupole relaxation of the 63 Cu nucleus (I = 3/2). [26] The chemical shift of gold complex 16[OTf] (d(P) = À67.2 ppm) is very close to the chemical shift of the free ligand (d(P) = À66.1 ppm). [26] The chemical shift of gold complex 16[OTf] (d(P) = À67.2 ppm) is very close to the chemical shift of the free ligand (d(P) = À66.1 ppm).…”

“…In contrast to the coordination chemistry of phosphides [22] and recent reports on complexes of related neutral ligands featuring [X-P(I)-X] (X = C, P) [23] fragments, the coordination chemistry of cations similar to 13 + has not yet been [25] The silver complex 15[OTf] shows two characteristic doublets as a result of the coupling to two silver isotopes (d(P) = À96.6 ppm, 1 J( 31 P 107 Ag) = 420 Hz, 1 J( 31 P 109 Ag) = 484 Hz). [26] The chemical shift of gold complex 16[OTf] (d(P) = À67.2 ppm) is very close to the chemical shift of the free ligand (d(P) = À66.1 ppm). In contrast, the digold complex 17[OTf]·(tht) shows a singlet that is shifted to lower field (d(P) = À40.4 ppm).…”

A Dinuclear Gold(I)–Silver(I) Derivative of 2‐Cyclopentylidene‐2‐sulfanylacetic Acid and Related Complexes: Synthesis, Crystal Structures, Properties and Antitumor Activity

“…The 1 J values areconsistent with a tetrahedral environment for the silver atoms, although the differences in the 1 J values could be associated with a slightly different environment for the two silver atoms [42,[44][45][46]. The 1 J values areconsistent with a tetrahedral environment for the silver atoms, although the differences in the 1 J values could be associated with a slightly different environment for the two silver atoms [42,[44][45][46].…”

Enhancing the Variability of [Ge9] Cluster Chemistry through Phosphine Functionalization

“…31 PNMR investigations of solutionso f3-AgNHC Dipp to 7-AgNHC Dipp showed doubletsw ith 1 J( 31 P-107 Ag/ 109 Ag) coupling constants ranging from 207.8 to 486.2 Hz (Table1,T able 2), which are in accordance with previously reported values. [23] By contrast, solutions of complexes 8-AgNHC Dipp to 11-AgNHC Dipp exhibited singlet 31 PNMR signals provingt he absence of AgÀPb onds. Table 1.…”