# Bis[5-(anthracen-9-ylmeth-yl)-1,5,9-tri-aza-cyclododecan-1-ium] tetra-chlorido-zincate.
> アントラセン基を有するポリアミン配位子と四塩化亜鉛アニオンからなる結晶性塩の構造解析


## Abstract

A crystalline salt consisting of two monoprotonated 12-membered polyamine macrocycle cations bearing anthracen-9-ylmethyl pendant arms and one tetrachloridozincate(II) anion was synthesized and characterized by single-crystal X-ray diffraction. The protonated nitrogen centers formed intramolecular hydrogen bonds with neighboring nitrogen atoms within the macrocyclic framework. In the solid state, the pendant anthracene moieties engaged in intermolecular π-π stacking and C-H⋯π interactions, which were identified as key contributors to crystal cohesion. Structural comparisons were drawn with related compounds featuring different macrocyclic ring sizes and pendant substituents, providing insight into how framework variation influences supramolecular packing.

## Bibliographic

- **Authors**: Ichimaru Y, Kato K, Jin W, Kurihara M, Kurosaki H
- **Journal**: IUCrdata
- **Year**: 2025
- **PMID**: [40487511](https://pubmed.ncbi.nlm.nih.gov/40487511/)
- **DOI**: [10.1107/S2414314625003566](https://doi.org/10.1107/S2414314625003566)
- **PMC**: [PMC12142395](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12142395/)
- **Study type**: other
- **Delivery route**: not specified
- **Effect reported**: not assessed

## Delivery context

The delivery route is not clearly identifiable from this paper. For hydrogen intake, inhalation is the most efficient route; inhalation, however, carries explosion risk (empirical LFL of 10%; high-concentration devices are not recommended).

## Safety notes

The delivery route is not clearly identifiable from this paper. For hydrogen intake, inhalation is the most efficient route; inhalation, however, carries explosion risk (empirical LFL of 10%; high-concentration devices are not recommended).

See also:
- [Inhalation concentration and LFL / UFL](https://h2-papers.org/en/safety-notes/inhalation-concentration)
- [Consumer Affairs Agency accident cases](https://h2-papers.org/en/safety-notes/accident-cases)

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> **Cite as**: H2 Papers — PMID 40487511. https://h2-papers.org/en/papers/40487511
> **Source**: PubMed PMID [40487511](https://pubmed.ncbi.nlm.nih.gov/40487511/)