Reaction between [Ru3(CO)12] and the tridentate phosphine ligand HC(PPh2)3; X-ray crystal structures of complexes [Ru3(CO)9{Ph2PCHP(Ph)C6H4PPh}], [Ru2H(CO)4(Ph2PCHPPh2){PhPC6H4C(O)}], and [Ru2(CO)4Cl(PPh2)(dppm)]

Reversible Thermal Activation of a Triphenylphosphine P−C Bond on a Cationic Non-Hydridic Triruthenium Carbonyl Cluster Complex. Structural Characterization of a μ-η1:η2-Benzoyl Derivative

“…In addition, although the thermal activation of P−C bonds of coordinated triphenylphosphine ligands has been observed on many occasions, ,,,− these reactions generally lead to phosphido-bridged derivatives as well as to benzene, , benzaldehyde, , or biphenyl. , However, very few σ-phenyl-μ-diphenylphosphido derivatives have been isolated, ,,, although they have often been claimed as intermediates in these processes. ,, Compounds containing bridging phenyl ligands arising from P−C bond cleavage reactions are even less common, being restricted to a few compounds of ruthenium ,, and to one of osmium …”

[Ru3(CN)3(CO)9]3−:Building Block for Multimetallic Cages

“…Perhaps driven by electrostatics, the three cyanide groups have up-up-down orientations relative to the Ru 3 plane, as established crystallographically. The 13 C NMR spectrum of a MeCN-d solution of [K(18-crown-6)] 3 [1] shows two signals assignable to CN, one at δ144.8 and one at δ141.1. The intensity of the δ144.8 signal is about twice of that of the δ141.1 signal, consistent with two cyanide ligand on one face of Ru 3 triangular plane while the third CN ligand projects from the opposite face.…”

“…The intensity of the δ144.8 signal is about twice of that of the δ141.1 signal, consistent with two cyanide ligand on one face of Ru 3 triangular plane while the third CN ligand projects from the opposite face. Variable temperature 13 C NMR measurements on [K(18-crown-6)] 3 [Ru 3 ( 13 CN) 3 (CO) 9 ] shows that the two 13 CN signals coalesce near 70 °C (Figure S3). Having a dynamic structure, [1] 3À was predicted to function as a tridentate or a tritopic N,N,N-ligand.…”

“…Two Ru 3 (μ-CO) 3 (CO) 6 subunits are linked by three bridging cyanide ligands. The cyanides are disordered as indicated by the observation of two peaks (153.9 and 153.6 ppm) in the 13 C NMR spectrum that assignable to RuCN (Figure S10). A similar 13 C-NMR spectrum was also observed for the NEt 4 + salt (Figure S8).…”

“…The cyanides are disordered as indicated by the observation of two peaks (153.9 and 153.6 ppm) in the 13 C NMR spectrum that assignable to RuCN (Figure S10). A similar 13 C-NMR spectrum was also observed for the NEt 4 + salt (Figure S8). The intensity ratio of the signals is about 2 : 1.…”