In:
Acta Crystallographica Section C Crystal Structure Communications, International Union of Crystallography (IUCr), Vol. 69, No. 11 ( 2013-11-15), p. 1357-1361
Abstract:
(Dicyanamido-κ N 1 )bis(5,5′-dimethyl-2,2′-bipyridine-κ 2 N , N ′)copper(II) tetrafluoroborate, [Cu{N(CN) 2 }(C 12 H 12 N 2 ) 2 ]BF 4 , (I), and (dicyanamido-κ N 1 )bis(5,5′-dimethyl-2,2′-bipyridine-κ 2 N , N ′)copper(II) perchlorate, [Cu{N(CN) 2 }(C 12 H 12 N 2 ) 2 ]ClO 4 , (II), are isomorphous and consist of [Cu{N(CN) 2 }(mbpy) 2 ] + cations (mbpy is 5,5′-dimethyl-2,2′-bipyridine) and BF 4 − or ClO 4 − anions, respectively. The Cu II cations in both structures are five-coordinated in distorted trigonal bipyramidal environments by four N atoms of two mbpy ligands and one N atom of the dicyanamide anion, which is coordinated in a monodentate manner in the equatorial plane, with Cu—N distances of 1.980 (3) and 1.977 (2) Å in (I) and (II), respectively. The two axial Cu—N mbpy bonds have very similar values [1.986 (1) Å on average] and are shorter than the other two equatorial Cu—N mbpy bonds. These have different values in the individual compounds but nevertheless form two pairs of similar bonds in (I) and (II) [2.066 (8) and 2.112 (2) Å, respectively, on average]. Besides the ionic forces in both structures, the structures are stabilized by C—H...N and C—H... X hydrogen bonds ( X = F and O, respectively), and by π–π interactions between the pyridine rings of neighbouring mbpy molecules.
Type of Medium:
Online Resource
ISSN:
0108-2701
DOI:
10.1107/S0108270113027091
DOI:
10.1107/S0108270113027091/fg3305sup1.cif
DOI:
10.1107/S0108270113027091/fg3305cumbdf__Isup2.hkl
DOI:
10.1107/S0108270113027091/fg3305cumbdc__IIsup3.hkl
Language:
Unknown
Publisher:
International Union of Crystallography (IUCr)
Publication Date:
2013
detail.hit.zdb_id:
2025703-X
SSG:
13
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