Bis[hydrotris(3,5-dimethyl-1-pyrazolyl)borato]copper(II). Corrigendum

Abstract

The crystal structure of the title compound has been Site X y z described as monoclinic, space group P2~/m, with a = Er 4(c) 0.50 -0.17647 0.25 7.431 (1), b = 13.729 (2), c = 7.435 (2)A, f l= 120.02 (2) °, Fe 4(a) 0.00 0.00 0.50 C(1,3) 16(h) 0.1844 -0.0466 0.41 I0 Z = 2 [Mullica, Perkins, Sappenfield & Leschnitzer (1989). c(2) 8(f) 0.00 -0.1362 0.5596 Acta Cryst. C45, 330-331.] It should be described as N(I,3) 16(h) 0.2965 -0.0756 0.3608 orthorhombic, space group Cmcm, with a = 7 . 4 3 5 , b = N(2) 8(]') 0.00 --0.2160 0.5964 12.868, c = 13.729/~, Z = 4. Revised coordinates are given. 0(1) 8(]) 0.50 0.1553 0.4001 0(2,3) 8(g) 0.265 0.215 0.25 The vectors defining the new cell edges are [003], [201], and [010]; the corresponding coordinate transformations are x' = ( x / 2 ) z , y' = ( x / 2 ) , z' = y . After averaging the transformed coordinates over appropriate pairs of atoms, the Cmcm coordinates in Table 1 result. No atom needed to be shifted as much as its reported e.s.d. [Mullica, Perkins, Sappertfield & Leschnitzer (1989) (hereal~er MPSL), Table 1] in order to comply with the symmetry of Cmcm. Thus, there are no significant changes in the bond lengths or angles (MPSL, Table 2). * Contribution No. 7922. 0108-2701/89/081270-01 $03.00 Table 1. Coordinates, space group Cmcm As MPSL note, the compound is isotypic with BiFe(CN)~. Interestingly, however, this latter compound was also first reported as monoclinic, space group P2~/m, but with a different choice of axes (Mulliea, Perkins & Sapperfield, 1988), and also had its space group revised to Cmcm (Marsh, 1989).