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

Yoshimi Ichimaru; Koichi Kato; Hiromasa Kurosaki; Haruto Fujioka; Misa Sakai; Yoshihiro Yamaguchi; Jin Wanchun; Kirara Sugiura; Masanori Imai; Tohru Koike

doi:10.1107/S2414314621003977

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

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

Authors

Affiliations

¹ College of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyamaku, Nagoya, Aichi, 4638521, Japan.
² Laboratory of Organic Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutical Sciences, Fukuyama University, Fukuyama 729-0292, Japan.
³ Environmental Safety Center, Kumamoto University, 39-1 Kurokami 2-Chome, Chuo-ku, Kumamoto, 8608555, Japan.
⁴ Department of Functional Molecular Science, Institute of Biochemical & Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan.

Abstract

The cationic Zn^II 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.