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)

Content Provider	Semantic Scholar
Author	Scharfe, Sandra Fässler, Thomas F.
Copyright Year	2012
Abstract	The synthesis of several phosphine Cu(I) complexes is reported, and their reactivity towards the solvents ethylenediamine (en) and dimethylformamide (dmf) has been investigated. CuX(PPh3) [X = Cl (1), Br (2)], CuCl(PCy3) (3) and CuCl(PiPr3)n [n = 1 (4), 2 (5)] were prepared according to adapted literature procedures. The complexes CuCl(PiPr3)n were obtained in crystalline form from a hexane solution at -70 °C and structurally characterized for n = 1 and 2. Copper halide complexes of PCy3 (3) and PiPr3 [n=1 (4)] gave colorless solutions in both en and dmf indicating the absence of Cu(II) ions. CuCl(PiPr3)2 is stable in dmf solutions. By contrast, the complexes CuX(PPh3) (X = Cl, Br) dissolve with blue color in en and with greenish-yellow color in dmf at higher temperatures under inert gas indicating a redox process affording Cu(II). At room temperature colorless crystals of CuX(PPh3)(en)2 [X = Cl (6), Br (7)] and CuX(PPh3)(dmf) [X = Cl (8), Br (9)] were isolated from the solutions and analyzed by single-crystal X-ray diffraction. Graphical Abstract 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)
Starting Page	564
Ending Page	572
Page Count	9
File Format	PDF HTM / HTML
DOI	10.5560/znb.2012-0101
Volume Number	67
Alternate Webpage(s)	http://www.znaturforsch.com/s67b/s67b0564.pdf
Alternate Webpage(s)	https://doi.org/10.5560/znb.2012-0101
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article