Figure 5:
Optimized geometry of [CuCl(pyz)
4
]
+
(top) and of [CuCl(pyz)
4
]
+
⋯ClO
4
−
(bottom) as obtained with M06-2X/6-31+G(d) in the gas phase (
T
= 298 K). Anion-
π
interactions in dashed line.