TY - JOUR
T1 - Transformations of Ruddlesden - Popper oxides to new layered perovskite oxides by metathesis reactions
AU - Gopalakrishnan, J.
AU - Sivakumar, T.
AU - Ramesha, K.
AU - Thangadurai, V.
AU - Subbanna, G. N.
PY - 2000/7/5
Y1 - 2000/7/5
N2 - We report transformations of the Ruddlesden-Popper (R-P) oxide, K2La2Ti3O10, to layered perovskite oxides, (Bi2O2)La2Ti3O10, MLa2Ti3O10 (M Pb, Ba, Sr), and (VO)La2Ti3O10, by a novel metathesis reaction with BiOCl, MCl2, and VOSO4·3H2O, respectively. The formation of (VO)La2Ti3O10, which occurs in aqueous medium around 100 °C, suggests that the reaction is most likely topotactic, where the structural integrity of the perovskite sheet is preserved. We believe that the method described here provides a new general route for the synthesis/assembly of layered perovskite materials containing MX/M2X2 sheets, as indeed shown by the independent report of (CuX)LaNb2O7 synthesis by a similar reaction.
AB - We report transformations of the Ruddlesden-Popper (R-P) oxide, K2La2Ti3O10, to layered perovskite oxides, (Bi2O2)La2Ti3O10, MLa2Ti3O10 (M Pb, Ba, Sr), and (VO)La2Ti3O10, by a novel metathesis reaction with BiOCl, MCl2, and VOSO4·3H2O, respectively. The formation of (VO)La2Ti3O10, which occurs in aqueous medium around 100 °C, suggests that the reaction is most likely topotactic, where the structural integrity of the perovskite sheet is preserved. We believe that the method described here provides a new general route for the synthesis/assembly of layered perovskite materials containing MX/M2X2 sheets, as indeed shown by the independent report of (CuX)LaNb2O7 synthesis by a similar reaction.
U2 - 10.1021/ja9914644
DO - 10.1021/ja9914644
M3 - Article
AN - SCOPUS:0034608841
SN - 0002-7863
VL - 122
SP - 6237
EP - 6241
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 26
ER -