Metallorganische Verbindungen des Kupfers VIII. Untersuchungen über die Koordinationschemie von heteroatomverbrückten Bisalkinen am Beispiel von Kupfer(I)-halogenid- und -trifluormethylsulfonat-Komplexen

S−C and C−H Bond Activations as well as C−C Couplings in C5H5FeC5H4C⋮CSC⋮CSiMe3 Promoted by the Cluster Os3(CO)10(NCMe)2

“…On the other hand, the coordination chemistry of alkyne thioethers has been poorly developed, although they present multiple metal binding sites. Studies of reactivity of these organosulfur compounds indicate the propensity for cleavage of the S−C bonds, although the compounds [(CuCl) 4 ·2S{C⋮CC(CH 3 ) 3 } 2 ] n and (CuOSO 2 CF 3 ) 2 ·S{C⋮CC(CH 3 ) 3 } 2 , in which the thioether binds to the copper atoms toward the C−C triple bond, have been described . In previous papers, we have reported that the reactions between Ru 3 (CO) 12 and the thioethers RC⋮CSC⋮CR‘ (R = R‘ = Fc; R = Fc, R‘ = SiMe 3 ; R = R‘ = SiMe 3 ; R = SiMe 3 , R‘ = Si i Pr 3 ) yielded different types of derivatives depending on the presence of the organometallic C 5 H 5 FeC 5 H 4 (Fc) substituent.…”

Co-ordinative ability of the new compounds [Ti(η5-C5H4R)2(CCBut)2] (R = PPh2, Ph2PO or Ph2PS) as precursors in the synthesis of heterodi- and heterotri-nuclear species. Crystal structure of [ClCu(μ-η5∶κP-C5H4PPh2)2Ti(μ-η2-CCBut)2CuCl]

“…Irrespective of whether the reaction of complex 1 and CuCl was carried out using 1 or 2 equivalents of CuCl only 2 was obtained. This seems to indicate an equal tendency of the CuCl moiety to co-ordinate P,P or (η 2 -C᎐ ᎐ ᎐ C) 2 , although a recent report 18 on reactions of copper() halides and X(C᎐ ᎐ ᎐ CBu t ) 2 (X = PPh, S, SO or SO 2 ) ligands showed a co-ordinative preference PhP > C᎐ ᎐ ᎐ C > S.…”

Modular Design Strategy toward Second-Generation Tridentate Carbodiphosphorane N,C,N Ligands with a Central Four-Electron Carbon Donor Motif and Their Complexes

“…The structural chemistry of Lewis base adducts of [CuCl] x is extraordinarily rich. Similar [Cu 4 (μ 2 -Cl) 4 ] cores can exist either in a “tube” form − or in a “step” or “twist-chair” form. − Some of the latter forms exist with two linear and collinear Cl–Cu–Cl units with angles close to 180°. − The eight-membered Cu 4 Cl 4 unit can be part of a “drumlike” Cu 6 X 6 unit . In [(CuCl) 8 (CDP­(O- 2 Py) 2 ) 2 ] the central Cu 4 Cl 4 core reveals an unusual motif with a plane defined by six atoms (4 × Cu and 2 × Cl: Cu5, Cu5′, Cu6, Cu6′ and Cl6, Cl6′) and only two out-of-plane chloride ions Cl5 and Cl5′.…”