# Aqua-{μ-1,4-bis-[(1,4,7,10-tetra-aza-cyclo-dodecan-1-yl)meth-yl]benzene}(nitrato-κ)dicopper(II) tris-(nitrate) trihydrate.
> ビス(シクロレン)ベンジル架橋二核銅(II)錯体の結晶構造解析


## Abstract

The crystal structure of a dinuclear copper(II) complex incorporating a bis-cyclen benzyl-bridging ligand has been determined. Both copper centers adopt square-pyramidal coordination geometries; however, the axial positions differ between the two metal sites, one occupied by a water molecule and the other by a nitrate ion. An extensive intermolecular hydrogen-bond network is formed through interactions among nitrate ions, coordinated and lattice water molecules, and N–H groups of the macrocyclic ligand. This structural characterization provides insight into the coordination chemistry of cyclen-based dinuclear copper assemblies.

## Bibliographic

- **Authors**: Ichimaru Y, Kato K, Sugiura K, Ogawa S, Jin W, Kurihara M, et al.
- **Journal**: IUCrdata
- **Year**: 2023
- **PMID**: [37936873](https://pubmed.ncbi.nlm.nih.gov/37936873/)
- **DOI**: [10.1107/S2414314623004625](https://doi.org/10.1107/S2414314623004625)
- **PMC**: [PMC10626620](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10626620/)
- **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 37936873. https://h2-papers.org/en/papers/37936873
> **Source**: PubMed PMID [37936873](https://pubmed.ncbi.nlm.nih.gov/37936873/)