Figure 1
(a) A view of the pentanuclear [Cu5Br7]2− anion, (b) a polyhedral view of the same unit (generic atom labels without symmetry codes have been used) and (c) a displacement ellipsoid plot (50% probability level) of the emim cation showing the atomic numbering scheme. The dotted line in (a) indicates the position of the mirror plane and connects atoms in special positions. [Symmetry codes: (i) x, −y + , z; (ii) x + , −y + , −z + ; (iii) x + , y, −z + .] |