Ag2Cs[B15O24]: Ein wasserfreies quaternäres Silber(I)-Borat mit einem neuartigen Boratanion mit helixartigem Aufbau / Ag2Cs[B15O24]: An Anhydrous Quaternary Silver(I)-Borate with a New Helical Borate Anion

A. Wiesch; K. Bluhm

doi:10.1515/znb-1998-0205

Published by De Gruyter June 2, 2014

Ag₂Cs[B₁₅O₂₄]: Ein wasserfreies quaternäres Silber(I)-Borat mit einem neuartigen Boratanion mit helixartigem Aufbau / Ag₂Cs[B₁₅O₂₄]: An Anhydrous Quaternary Silver(I)-Borate with a New Helical Borate Anion

A. Wiesch and K. Bluhm

From the journal Zeitschrift für Naturforschung B

https://doi.org/10.1515/znb-1998-0205

Showing a limited preview of this publication:

Abstract

Single crystals of Ag₂Cs[B₁₅O₂₄] were prepared by using a B₂O₃ flux technique with Ag₂CO₃ and Cs₂CO₃ in a closed silver tube at 650 °C. X-Ray investigations led to a new crystal structure in the space group P 2₁2₁2 (Nr. 18) with lattice parameters a = 1778.7 (4); b = 2219.2 (4); c = 512.2 (1) pm, Z = 4. The silver atoms are part of distorted AgO₄ tetrahedra and planar AgO₃ units while the caesium atoms are eightfold coordinated by oxygen. The compound contains an as yet unknown borate anion [B₁₅O₂₄] with twelve BO_3-and three BO₄ units per formula. The BO₃ units are connected to eight cords twisted to helices which are combined via BO₄ tetrahedra to a three dimensional framework with large tunnels occupied by the cations.

Keywords: Silver; Caesium; Borate; Synthesis; Crystal Structure

Received: 1997-10-23

Published Online: 2014-6-2

Published in Print: 1998-2-1

Ag₂Cs[B₁₅O₂₄]: Ein wasserfreies quaternäres Silber(I)-Borat mit einem neuartigen Boratanion mit helixartigem Aufbau / Ag₂Cs[B₁₅O₂₄]: An Anhydrous Quaternary Silver(I)-Borate with a New Helical Borate Anion

Abstract

Journal and Issue

Articles in the same Issue