962-89-0Relevant articles and documents
Warner, C. R.,Strunk, R. J.,Kuivila, H. G.
, p. 3381 - 3384 (1966)
Transmetalation reactions yield new tetra- and pentairidium carbonyl complexes containing σ-bonded phenyl rings
Adams, Richard D.,Chen, Mingwei
, p. 5867 - 5872 (2012/01/03)
The new air-stable σ-phenyl tetrairidium carbonyl salt [Et 4N][Ir4(CO)11Ph], 1, has been obtained by transmetalation reactions between [Et4N][Ir4(CO)11Br] and SnPh3OH in 45% yield or SnPh4 in 36% yield. Compound 1 reacts with PPh3 to yield the complex [Et4N][Ir 4(CO)11(PPh2C6H4)], 2, which contains an ortho-metalated bridging PPh2C6H4 ligand across an edge of a tetrahedral cluster of four iridium atoms. Compound 2 reacts with Ir(CO)(PPh3)2Cl by halide displacement to yield the two new uncharged pentairidium complexes Ir5(CO)12(Ph) (PPh3), 3, and Ir5(CO)11(PPh 3)(PPh2C6H4), 4. Compounds 3 and 4 both contain trigonal-bipyramidal clusters of iridium atoms. Compound 3 contains a σ-phenyl ligand coordinated to one of the apical iridium atoms. Compound 4 contains an ortho-metalated PPh2C6H4 ligand that bridges an apical-equatorial edge of the trigonal-pyramidal cluster of metal atoms. Compound 4 was also obtained from 3 by reaction with PPh 3.
Cleavage Reactions of some Phenyltin Compounds with Iodine Halides, -Pseudohalides and -Carboxylates
Srivastava,Singh,Tangri,Sinha,Bajpai
, p. 443 - 445 (2007/10/03)
Cleavage reactions of iodinehalides, -pseudohalides IX (X = Cl, Br, NCO, NCS, N3 and CN) with Ph3SnCp yield triphenyltinhalides, -pseudohalides (Ph3SnX) indicating cleavage of Cp-Sn bond in preference to Ph-Sn bond, and cleavage reactions of iodine carboxylates IX′ (X′ = CH3OCO, C5H5OCO, C6H5CH2OCO, o-NH2C6H4OCO, o-CIC6H4OCO, p-NO2C6H4OCO, p-NH2C6H4OCO, C6H5CH =CHOCO) (in situ) with Ph3SnCl give hitherto unknown diphenylchlorotin carboxylates (Ph2SnX′Cl) indicating cleavage of Ph-Sn bond in preference to Cl-Sn bond. On the basis of the results, it is predicated that these diphenylchlorotin carboxylates possess bridging carboxylate groups (inter-molecularly chelated structure) in the solid state, whereas in solution they contain chelated carboxylate groups (intra-molecularly chelated structures).
Interaction of naphthaleneytterbium with tetraphenyltin. Molecular structure of Ph3SnYb(THF)2(μ-Ph)3Yb(THF)3
Bochkarev, Mikhail N.,Khramenkov, Vladimir V.,Rad'kov, Yury F.,Zakharov, Lev N.,Struchkov, Yury T.
, p. 29 - 38 (2007/10/02)
Reaction of naphthaleneytterbium with Ph4Sn in THF yields (Ph3Sn)2Yb(THF)4 and the heteroleptic complex Ph3SnYb(THF)2(μ-Ph)3Yb(THF)3 (1), which can be isolated by crystallization from THF/ether solution.The product 1 forms triclinic crystals in space group P1 with a = 11.123(2), b = 14.078(3), c = 18.774(4) Angstroem, α = 101.94(2), β = 96.20(2), γ = 109.85(2) deg, Z = 2.Least-squares refinement on the basis of 4955 reflections led to a final R value of 0.027.The molecule of 1 contains two Yb atoms connected by three bridging Ph rings.One of Yb atoms is bonded with Ph3Sn unit (Sn-Yb bond length is 3.379(1) Angstroem) and two THF molecules.The second Yb atom is surrounded by three molecules of coordinated THF.Coordination of each ytterbium atom is distorted octahedron.The proposed reaction scheme includes two-electron oxidation of naphthaleneytterbium, formation of Ph3SnYbPh and PhYbPh intermediates and their following association.
