Syntheses and Coordination Studies of 2‐(Phosphanylmethyl)pyridine Dioxide toward Silver (I)

Abstract

The coordination properties of the 2‐[(diphenylphosphanyl)methyl]pyridine N,P‐dioxide ligand towards three different silver(I) salts are described. The molecular structures of the coordination complexes obtained showed a strong dependence on the 2‐[(diphenylphosphanyl)methyl]pyridine N,P‐dioxide ligand and the binding ability of the counterion. The strongly binding trifluoroacetate ion yielded a unique planar silver cluster complex, whereas the less strongly binding triflate and BF4– complexes yielded polymeric structures. The synthesized complexes were fully characterized by elemental analysis and multinuclear NMR spectroscopy techniques. The crystal structures were determined by single‐crystal X‐ray crystallography.

Synthesis and Properties of New (Phosphinoylmethyl)Pyridine N‐Oxides

“…The P=O bond length, 149.3(2) pm, and N-O bond lengths, 133.1(2) and 132.4(3) pm are within the range of values reported in other work. [11,12,16,23] The average La-O distance involving the inner sphere triflates, and methanol and Figure 11. Inner sphere molecular structure and atomic numbering scheme for {La[(meNO) 2 PO*)](OTf) 2 (MeOH) 3 (H 2 O) + }(OTf -) (thermal ellipsoids shown at the 50 % level) with hydrogen atoms removed for clarity.…”

From polygons to polyhedra through intermediate structures. A shape measures study of six-atom inorganic rings and clusters

“…27), the latter represented by an Ag 6 cluster. 124 By bending the ribbon around the vertical edges it starts winding up, as illustrated by Au 4 Ag 2 , 125 Ru 6 , 126 and Cu 6 127 groups, approaching the octahedron in a Cu 6 cluster 128 and closes the three upper and the three lower vertices to form the two missing faces of the octahedron in an Fe 6 example. 129…”