Application of 92361-49-4, An article , which mentions 92361-49-4, molecular formula is C46H45ClP2Ru. The compound – Chloro(pentamethylcyclopentadienyl)bis(triphenylphosphine)ruthenium(II) played an important role in people’s production and life.
The dynamic behavior in solution of eight mono-hapto tetraphosphorus transition metal-complexes, trans-[Ru(dppm)2(H) (I·1-P4)]BF4 ([1]BF4), trans-[Ru(dppe)2(H)(I·1-P4)] BF4 ([2]BF4), [CpRu(PPh3) 2(I·1-P4)]PF6 ([3]PF6), [CpOs(PPh3)2(I· 1-P4)]PF6 ([4]PF6), [Cp*Ru(PPh3)2(I·1-P 4)]PF6 ([5]PF6), [Cp*Ru(dppe) (I·1-P4)]PF6 ([6]PF6), [Cp*Fe(dppe)(I·1-P4)]PF6 ([7]PF6), [(triphos)Re(CO)2(I·1- P4)]OTf ([8]OTf), and of three bimetallic Ru(mu, I·1:2-P4)Pt species [{Ru(dppm) 2(H)}(mu,I·1:2-P4){Pt(PPh 3)2}]BF4 ([1-Pt]BF4), [{Ru(dppe)2(H)}(mu,I·1:2-P 4){Pt(PPh3)2}]BF4 ([2-Pt]BF 4), [{CpRu(PPh3)2)}(mu,I· 1:2-P4){Pt(PPh3)2}]BF4 ([3-Pt]BF4), [dppm=bis(diphenylphosphanyl)methane; dppe=1,2-bis(diphenylphosphanyl)ethane; triphos=1,1,1- tris(diphenylphosphanylmethyl)ethane; Cp=I·5-C 5H5; Cp=I·5-C 5Me5] was studied by variable-temperature (VT) NMR and 31P{1H} exchange spectroscopy (EXSY). For most of the mononuclear species, NMR spectroscopy allowed to ascertain that the metal-coordinated P4 molecule experiences a dynamic process consisting, apart from the free rotation about the M-P4 axis, in a tumbling movement of the P4 cage while remaining chemically coordinated to the central metal. EXSY and VT 31P NMR experiments showed that also the binuclear complex cations [1-Pt]+-[3-Pt] + are subjected to molecular motions featured by the shift of each metal from one P to an adjacent one of the P4 moiety. The relative mobility of the metal fragments (Ru vs. Pt) was found to depend on the co-ligands of the binuclear complexes. For complexes [2]BF4 and [3]PF6, MAS, 31P NMR experiments revealed that the dynamic processes observed in solution (i.e., rotation and tumbling) may take place also in the solid state. The activation parameters for the dynamic processes of complexes 1+, 2+, 3+, 4+, 6 +, 8+ in solution, as well as the X-ray structures of 2+, 3+, 5+, 6+ are also reported. The data collected suggest that metal-coordinated P4 should not be considered as a static ligand in solution and in the solid state. A detailed solution and solid-state NMR dynamics study on mono- and bimetallic transition metal complexes, coordinating white phosphorus in I·1- P4 fashion, has revealed that this ligand is endowed of motions which depend on the nature of co-ligands and geometries around the metals. Activation parameters of the processes and X-ray crystal structures were also obtained (see figure). Copyright
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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI