trans-Bis(ethylenediamine)bis(trifluoroacetato)copper(II)

Abstract

Key indicatorsSingle-crystal X-ray study T = 153 K Mean (C-C) = 0.004 Å R factor = 0.047 wR factor = 0.106 Data-to-parameter ratio = 11.7For details of how these key indicators were automatically derived from the article, see

Structure, EPR/ENDOR and DFT characterisation of a [CuII(en)2](OTf)2 complex

“…There are many such complexes reported, the most common being those in which water ligands occupy the axial positions, 1 although examples have been reported containing coordinated counterions, such as nitrate, 1d,15 oxalate, 16 sulphonate, 17 and carboxylate. 18 The mass spectrometry data are supportive that the solid state structure is largely representative of the structure in solution: as expected from a weakly coordinated triflate, the parent ion was not observed, and the largest identifiable peak was that attributed to the cation formed via loss of one triflate. Nevertheless, the fact that one triflate remains coordinated under such conditions shows a significant degree of triflate coordination that is likely to exist in solution, and this has been confirmed using ENDOR measurements (vide infra).…”

Tris(ethane-1,2-diamine)copper(II) bis(trifluoroacetate)

“…The present investigation is a continuation of experimental work to study the structure and properties of different carboxylate complexes (Karpova et al, 1998;Karpova et al, 2001;Gutnikov et al, 2006;Karpova et al, 2007). In the title compound, Cu(H 2 NCH 2 CH 2 NH 2 ) 3 .…”

“…For other carboxylate complexes, see: Karpova et al (1998); Karpova et al (2001); Gutnikov et al (2006); Karpova et al (2007).…”