Crystal structure of <i>trans</i> -(1,8-dibutyl-1,3,6,8,10,13-hexaazacyclotetradecane-κ <sup>4</sup> <i>N</i> <sup>3</sup> , <i>N</i> <sup>6</sup> , <i>N</i> <sup>10</sup> , <i>N</i> <sup>13</sup> )bis(perchlorato-κ <i>O</i> )nickel(II) from synchrot
The crystal structure of the nickel(II) macrocyclic title complex, <i>trans</i>- [Ni(ClO<sub>4</sub>)<sub>2</sub>(C<sub>16</sub>H<sub>38</sub>N<sub>6</sub>)], was analyzed using synchrotron radiation. The coordination environment consists of four nitro-gen atoms from the ligand [Ni-N = 1.9382 (16), 1.9378 (17) Å] and two perchlorate oxygen atoms [Ni-O = 2.878 (3) Å], adopting an octa-hedral geometry with slight tetra-gonal distortion. The structural comparison with its Cu<sup>II</sup> analogue reveals a notable elongation in the axial Ni-O bonds, which is attributed to the steric hindrance of the macrocyclic ligand and weak axial coordination. Supra-molecular inter-actions involving hydrogen bonding further consolidate the three-dimensional crystal packing.
Authors
- Dongwon Kim (ORCID: https://orcid.org/0000-0002-7950-5487)
- Dae-Woong Kim
- Dohyun Moon
Institutions
- Pohang University of Science and Technology (KR)
- Pohang TechnoPark (South Korea) (KR)
Publication Details
- Journal
- Acta Crystallographica Section E Crystallographic Communications
- Published
- 2026-02-23
- DOI
- https://doi.org/10.1107/s2056989026001817
- Primary Topic
- Metal-Catalyzed Oxygenation Mechanisms
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Research Foundation
- Pohang University of Science and Technology
- Ministry of Science, ICT and Future Planning
- National Research Foundation of Korea
- Ministry of Education, Science and Technology
- Ministry of Science and ICT, South Korea