Structural and spectroscopic studies on three-coordinate complexes of copper(i) halides with tricyclohexylphosphine

Reactivity of Cu(I) Compounds towards Ethylenediamine and Dimethylformamide: Crystal Structure of CuCl(PiPr3)n (n=1, 2), CuX(PPh3)(en)2 (X=Cl, Br) and CuX(PPh3)(dmf)

“…2). The copper atom is coordinated by one Cl atom and two P atoms in an almost ideal trigonalplanar arrangement which was also found for numerous other complexes of the general formula CuCl(PR 3 ) 2 with large groups R [22,31,32]. The CuCl distance is 2.2592(6)Å, and the Cu-P distances amount to 2.2419(6) and 2.2652(6)Å.…”

“…Copper halide complexes of PCy 3 and P i Pr 3 (n = 1) led to colorless solutions in both en and dmf indicating the absence of Cu(II) ions. Indeed, for the preparation of CuCl(PCy 3 ), CuCl was dissolved in dmf giving a yellow solution of Cu(II) ions and elemental copper, and the addition of PCy 3 induced the comproportionation reaction after heating the mixture [22]. CuCl(P i Pr 3 ) 2 proved to be stable in dmf, but gave a pale-blue solution in en.…”

Group 11 Metal Complexes of the Mesocyclic Thioether Aminophosphonites [‐OC10H6(μ‐S)C10H6O‐]PNC4H8E (E = O, NMe)

“…The backbones of two aminophosphonite ligands are in the staggered conformation, while the PCu(µ-Br) 2 CuP unit is almost planar. Several trigonal planar dinuclear copper complexes of this type containing monophosphanes have been well characterized, [14] however those of aminophosphonites or phosphites are rare. The Cu-P bond length [2.171(1) Å] in complex 5a is comparable with that in the tetrahedral copper complex of the monophosphite 4-nitro,2,6,7-trioxa-1-phosphabicyclo-[2.…”

Crystal structure of tetrakis(isopropyldiphenylphosphine)- di(μ-iodo)dicopper(I), Cu2l2(PC15H17)4

“…Copper(I)halides react with monodentate phosphine ligands to yield two, three and tetra coordinate complexes with different stoichiometrics. Within the 1:2 stoichiometry, CuI(P/f3)2 complexes have been shown to exhibit a monomelic, three coordinate structure [4], in addition to the dimeric four coordinate structure. The latter situation was reported for the ligands PH2PI1, PMePh 2 , PMe 3 and P(C2Ph) 3 [5][6][7][8].…”