title: The Indium Borate In19B34O74(OH)11with T2 Supertetrahedra.
abstract: The trigonal indium borate In19B34O74(OH)11was synthesized in a Walker-type multianvil apparatus under high-pressure/high-temperature conditions of 13 GPa and 1150 °C. The crystal structure could be determined by single-crystal X-ray diffraction data collected at room temperature. In19B34O74(OH)11crystallizes in the trigonal space group R3̅ (Z = 3) with the lattice parameters a = 1802.49(6) pm, c = 1340.46(5) pm, and V = 3.7716(3) nm3. The structure of In19B34O74(OH)11contains alternating B-O T2 supertetrahedra units. The presence of hydroxyl groups was confirmed with vibrational spectroscopic methods such as Raman and IR. Besides H2InB5O10, In19B34O74(OH)11is now the second known compound in the system In-B-O-H.
authors.affiliation: Institute of General, Inorganic and Theoretical Chemistry, Universität Innsbruck , Innrain 80-82, A-6020 Innsbruck, Austria.
authors.forename: Daniela
authors.initials: D
authors.lastname: Vitzthum
authors.affiliation: Institute of General, Inorganic and Theoretical Chemistry, Universität Innsbruck , Innrain 80-82, A-6020 Innsbruck, Austria.
authors.forename: Klaus
authors.initials: K
authors.lastname: Wurst
authors.affiliation: Institute of General, Inorganic and Theoretical Chemistry, Universität Innsbruck , Innrain 80-82, A-6020 Innsbruck, Austria.
authors.forename: Johannes
authors.initials: J
authors.lastname: Prock
authors.affiliation: Institute of General, Inorganic and Theoretical Chemistry, Universität Innsbruck , Innrain 80-82, A-6020 Innsbruck, Austria.
authors.forename: Peter
authors.initials: P
authors.lastname: Brüggeller
authors.affiliation: Institute of General, Inorganic and Theoretical Chemistry, Universität Innsbruck , Innrain 80-82, A-6020 Innsbruck, Austria.
authors.forename: Hubert
authors.initials: H
authors.lastname: Huppertz