Abstract
The title compound, Na2Cu3(SeO3)4(H2O)4, has been prepared under hydrothermal conditions. The crystal structure contains a three-dimensional anionic framework made up from distorted [CuO4(H2O)2] octahedra ( symmetry), [CuO4(H2O)] square pyramids and trigonal-pyramidal SeO3 units sharing common corners. The connectivity among these units leads to four- and eight-membered polyhedral rings, which by edge-sharing interconnect into walls. A rhombus-like 16-membered polyhedral ring channel system with a longest length of approximately 14.0 Å and a shortest length of 5.3 Å is enclosed by such walls along the a axis. The water molecules attached to the Cu atoms, as well as the electron lone pairs of the SeIV atoms, protrude into these channels. The seven-coordinated Na+ counter-cations occupy the remaining free space of the 16-membered polyhedral ring channels. An intricate network of O—H⋯O hydrogen bonds further consolidates the three-dimensional structure.
Highlights
The title compound, Na2Cu3(SeO3)4(H2O)4, has been prepared under hydrothermal conditions
H atoms treated by a mixture of independent and constrained refinement
The crystal structure contains a three-dimensional anionic framework made up from distorted [CuO4(H2O)2] octahedra (1 symmetry), [CuO4(H2O)] square pyramids and trigonal-pyramidal SeO3 units sharing common corners. The connectivity among these units leads to four- and eight-membered polyhedral rings, which by edge-sharing interconnect into walls
Summary
Symmetry codes: (i) Àx À 1; y À 12; Àz þ 12; (ii) x þ 1; y; z; (iii) x À 1; y; z. The crystal structure contains a three-dimensional anionic framework made up from distorted [CuO4(H2O)2] octahedra (1 symmetry), [CuO4(H2O)] square pyramids and trigonal-pyramidal SeO3 units sharing common corners. The connectivity among these units leads to four- and eight-membered polyhedral rings, which by edge-sharing interconnect into walls. A rhombus-like 16-membered polyhedral ring channel system with a longest length of approximately 14.0 Aand a shortest length of 5.3 Ais enclosed by such walls along the a axis. The sevencoordinated Na+ counter-cations occupy the remaining free space of the 16-membered polyhedral ring channels. An intricate network of O—HÁ Á ÁO hydrogen bonds further consolidates the three-dimensional structure
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section E Structure Reports Online
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
