Synthesis and crystal structure of Sr <sub>2</sub> Cu(OH) <sub>4</sub> [B(OH) <sub>4</sub> ] <sub>2</sub>
Single crystals of distrontium copper(II) tetra-hydroxide bis-(tetra-hydroxidoborate), Sr<sub>2</sub>Cu(OH)<sub>4</sub>[B(OH)<sub>4</sub>]<sub>2</sub>, were obtained by an ammonia evaporation method at room temperature. The compound crystallizes in the triclinic system, space group <i>P</i>1, and is isotypic with the calcium analogue henmilite, Ca<sub>2</sub>Cu(OH)<sub>4</sub>[B(OH)<sub>4</sub>]<sub>2</sub>. The {Cu(OH)<sub>4</sub>} units form a deformed square lattice in the <i>ac</i> plane, giving rise to a quasi-two-dimensional arrangement of Cu<sup>II</sup> ions. An intricate network of O-H⋯O hydrogen bonds of medium strengths with the [B(OH)<sub>4</sub>] units as the primary donor groups consolidate the framework structure.
Authors
- Hibiki Kunisawa
- Jun-ichi Yamaura
- Toshihiro Nomura
Institutions
- Shizuoka University (JP)
- The University of Tokyo (JP)
Publication Details
- Journal
- Acta Crystallographica Section E Crystallographic Communications
- Published
- 2025-12-22
- DOI
- https://doi.org/10.1107/s2056989025011491
- Primary Topic
- Crystal Structures and Properties
- Type
- article
- Field-Weighted Citation Impact
- 0.00