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. 2021 Apr 20;6(Pt 4):x210397.
doi: 10.1107/S2414314621003977. eCollection 2021 Apr.

Aqua-(1,4,7,10-tetra-aza-cyclo-dodeca-ne)zinc(II) bis-(perchlorate)

Yoshimi Ichimaru  1 , Koichi Kato  1 , Hiromasa Kurosaki  1 , Haruto Fujioka  2 , Misa Sakai  1 , Yoshihiro Yamaguchi  3 , Jin Wanchun  1 , Kirara Sugiura  1 , Masanori Imai  1 , Tohru Koike  4
Affiliations

Aqua-(1,4,7,10-tetra-aza-cyclo-dodeca-ne)zinc(II) bis-(perchlorate)

Yoshimi Ichimaru et al. IUCrdata. .

Abstract

The cationic ZnII part of aqua-(1,4,7,10-tetra-aza-cyclo-dodeca-ne)zinc(II) bis-(perchlorate), [Zn(C8H20N4)(H2O)](ClO4)2, exhibits a slightly distorted square-pyramidal coordination environment with a water mol-ecule in the apical position. In the crystal, the macrocyclic ring alternates between two conformations with equal occupancies. Two of the three perchlorate anions are situated about a twofold rotation axis, and one of them shows disorder of the O atoms with occupancies of 0.62 (7) and 0.38 (7). In the crystal, the complexes are connected by inter-molecular hydrogen bonding via the perchlorate anions.

Keywords: crystal structure; cyclen; zinc(II) complex.

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Figures

Figure 1
Figure 1
The structures of the molecular entities within the title complex showing 50% displacement ellipsoids. [Symmetry codes: (i) −x + 1, y, −z +  formula image ; (ii) −x, y, −z +  formula image ].
Figure 2
Figure 2
A view of the crystal packing of the title complex. Dashed lines denote the hydrogen bonds.
See this image and copyright information in PMC

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