
%0 Journal Article
%A Bruce, MI 
%A Humphrey, PA 
%A Patrick, JM 
%A Skelton, BW 
%A White, AH 
%A Williams, ML 
%T Pentakis(methoxycarbonyl)cyclopentadiene Chemistry. IX. Some Derivatives Containing Copper(I): X-Ray Structures of [Cu{C<sub>5</sub>(CO<sub>2</sub>Me)<sub>5</sub>}(Eph<sub>3</sub>)<sub>2</sub>] (E=P and As) and [{Cu(AsPh<sub>3</sub>)<sub>3</sub>}<sub>2</sub>(µ-O<sub>2</sub>CMe)][C<sub>5</sub>(CO<sub>2</sub>Me)<sub>5</sub>]
%J Australian Journal of Chemistry
%D 1985/10/01
%V 38
%N 10
%P 1441-1453
%K 
%R https://doi.org/10.1071/CH9851441
%U https://www.publish.csiro.au/paper/CH9851441 
%X Reactions between Cu{C5(CO2Me)5}2 and excess PPh3, or between PPh3 and a methanolic solution of Cu2O in HC5(CO2Me)5('Cu{C5(CO2Me)5}'), have given Cu{C5(CO2Me)5}(PPh3)2; the P(C6H4Me-p)3 complex was also obtained, while addition of Ph2P(CH2)2PPh2 (dppe) to 'Cu{C5(CO2Me)5}' gave the salt [Cu(dppe)2] [C5(CO2Me)5]. Cu{C5(CO2Me)5}(AsPh3)2 was obtained similarly from AsPh3 and 'Cu{C5(CO2Me)5}' or from [CuI(CNMe)(AsPh3)]2 and Tl{C5(CO2Me)5}. The X-ray structures of Cu{C5(CO2Me)5}(EPh3)2 (E = P, As) show the complexes to have copper approximately tetrahedrally coordinated by the two EPh3 ligands and two carbonyl oxygens from adjacent CO2Me groups on the C5 ligand. The X-ray structure of [{Cu(AsPh3)3}2(&#956;-O2CR)] [C5(CO2Me)5] is also reported: an acetate or formate ligand bridges two Cu(AsPh3)3 units in the cation; the anion is a disordered C5(CO2Me)5- anion. Cu{C5(CO2Me)5}(PPh3)2 is monoclinic, space group P21/c, with a 9.151(5), b 19.28(1), c 27.78(2) &#506;, &#946; 95.21(5)&#176;, Z 4; 2710 independent observed data were refined to R 0.072, R&#8242;0.084. Cu{C5(CO2Me)5}(AsPh3)2 is isomorphous, with a 9.105(4), b 19.198(11), c 27.85(2) &#506;, &#946; 92.86(4)&#176;, Z 4; 4684 independent observed data were refined to R 0.045, R&#8242; 0.035. [{Cu(AsPh3)3}2(&#956;-O2CMe)] [C5(CO2Me)5] is monoclinic, space group P2/n, with a 23.214(9), b 13.141(4), c 18.326(6) &#506;, &#946; 94.95(3)&#176;, Z 2; 1896 independent observed data were refined to R 0.072, R&#8242; 0.081. 
