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Updated: Jun 17, 2025
16:11
Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry
Published on: June 8, 2022
2.2K
[1-(Anthracen-9-ylmeth-yl)-1,4,7,10-tetra-aza-cyclododeca-ne]chlorido-zinc(II) nitrate
Yoshimi Ichimaru1, Kirara Sugiura2, Koichi Kato1
1Faculty of Pharmaceutical Sciences, Shonan University of Medical Sciences, 16-48, Kamishinano, Totsuka-ku, Yokohama, Kanagawa, 244-0806, Japan.
Iucrdata
|August 7, 2024
Summary
This study details a novel zinc complex with a cyclen ligand and an anthracene group. The complex exhibits square-pyramidal coordination geometry and forms intermolecular interactions, including pi-stacking and hydrogen bonds.
Area of Science:
- Coordination Chemistry
- Supramolecular Chemistry
- Crystal Engineering
Background:
- Cyclen (1,4,7,10-tetra-aza-cyclo-dodeca-ne) is a versatile macrocyclic ligand with applications in coordination chemistry.
- Anthracene moieties can influence crystal packing through pi-pi interactions.
- Metal complexes with specific coordination geometries are of interest for their unique properties.
Purpose of the Study:
- To synthesize and characterize a novel zinc(II) complex incorporating a cyclen ligand and an anthracene substituent.
- To investigate the coordination environment around the central zinc ion.
- To explore the supramolecular interactions governing the crystal structure.
Main Methods:
- Single crystal X-ray diffraction was used to determine the molecular and crystal structure.
- Spectroscopic methods were employed for characterization (details not provided in abstract).
Main Results:
- The title salt, [ZnCl(C23H30N4)]NO3, features a central Zn(II) ion coordinated in a square-pyramidal geometry.
- The cyclen ligand occupies the basal plane with four nitrogen atoms, and a chloride ligand is in the apical position.
- The anthracene group facilitates intermolecular T-shaped pi-interactions, and the nitrate anion forms N-H...O hydrogen bonds with the cyclen moiety.
Conclusions:
- The synthesized zinc-cyclen complex exhibits a defined square-pyramidal coordination geometry.
- Intermolecular T-shaped pi-interactions and hydrogen bonding play significant roles in the crystal packing of the complex.
- This study contributes to the understanding of structure-property relationships in metal-macrocycle complexes.
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