The Crystal Structure of Tetramethylammonium Diisocyanatoargentate(I).

Molecular Assembly with Axial Cyanato Ligands and Paddlewheel Tetracarboxylatodiruthenium(II,III) Fragments

“…It is also noteworthy that the oxygen atom is shared with the neighbouring ruthenium atom to give µ 1,1 -O coordination. These results contrast with the existence of isocyanato ligands in the complex [13] (NBu 4 )[Ag(NCO) 2 ]. The magnetic measurements of both compounds show magnetic moments at room temperature corresponding to the presence of three unpaired electrons per diruthenium unit.…”

The Neutral Complex (NH3)Ag(NCO)

“…via the nitrogen atom to silver. [1,6] The most pronounced deviation from linearity is found for the Ag-N-C angles (160.1°) (see Table 1). The isocyanate ligand as such does not deviate significantly from [1] ).…”

“…In accordance with previous findings on silver isocyanates, the anion coordinates via the nitrogen atom to silver. [ 1,6 ] The most pronounced deviation from linearity is found for the Ag–N–C angles (160.1°) (see Table 1). The isocyanate ligand as such does not deviate significantly from linearity (angle N–C–O = 178.9°), also the N–Ag–N angle comes close to 180° (N–Ag–N = 177.56°).…”

“…For classifying the bonding parameters obtained, it appears reasonable to compare them in particular with the values as found for the extended solid RT-AgNCO [1] and for the diisocyanatoargentate anion [Ag(NCO) 2 ] -. [6] In addition, other ammoniates of silver, especially the known molecular monammine (NH 3 )AgX compounds (X = Br, CN, NO 3 ), may serve as references [3,7] (see Table 1). In summary, all relevant intramolecular bonding distances in (NH 3 )Ag(NCO) comply fairly well with analogue ones as reported earlier.…”

“…the Ag-N-C angle) in (NH 3 )Ag(NCO) is not mirrored by the diisocyantoargentate anion. [6] In order to check if intermolecular interactions possibly engender the distinct Ag-N-C angle in (NH 3 )Ag(NCO), we Z. Anorg. Allg .…”