Next Article in Journal
Previous Article in Journal
Crystals 2011, 1(1), 3-14; doi:10.3390/cryst1010003
Article

New Layered Oxide-Fluoride Perovskites: KNaNbOF5 and KNaMO2F4 (M = Mo6+, W6+)

,
 and *
Received: 24 February 2011; in revised form: 9 March 2011 / Accepted: 16 March 2011 / Published: 18 March 2011
View Full-Text   |   Download PDF [3047 KB, updated 24 March 2011; original version uploaded 22 March 2011]   |   Browse Figures
Abstract: KNaNbOF5 and KNaMO2F4 (M = Mo6+, W6+), three new layered oxide-fluoride perovskites with the general formula ABB’X6, form from the combination of a second-order Jahn-Teller d0 transition metal and an alkali metal (Na+) on the B-site. Alternating layers of cation vacancies and K+ cations on the A-site complete the structure. The K+ cations are found in the A-site layer where the fluoride ions are located. The A-site is vacant in the adjacent A-site layer where the axial oxides are located. This unusual layered arrangement of unoccupied A-sites and under bonded oxygen has not been observed previously although many perovskite-related structures are known.
Keywords: perovskites; oxide-fluorides; hydrothermal synthesis perovskites; oxide-fluorides; hydrothermal synthesis
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Pinlac, R.A.F.; Stern, C.L.; Poeppelmeier, K.R. New Layered Oxide-Fluoride Perovskites: KNaNbOF5 and KNaMO2F4 (M = Mo6+, W6+). Crystals 2011, 1, 3-14.

AMA Style

Pinlac RAF, Stern CL, Poeppelmeier KR. New Layered Oxide-Fluoride Perovskites: KNaNbOF5 and KNaMO2F4 (M = Mo6+, W6+). Crystals. 2011; 1(1):3-14.

Chicago/Turabian Style

Pinlac, Rachelle Ann F.; Stern, Charlotte L.; Poeppelmeier, Kenneth R. 2011. "New Layered Oxide-Fluoride Perovskites: KNaNbOF5 and KNaMO2F4 (M = Mo6+, W6+)." Crystals 1, no. 1: 3-14.

Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert