Table 1. Selected bond lengths (Å).

K1—O2i	2.6558 (8)
K1—O1ii	2.6780 (8)
K1—O2	2.7069 (8)
K1—O1iii	2.7167 (8)
K1—O2iv	2.8027 (8)
K1—O1	3.0335 (8)

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) .