Topochemical manipulation of some complex transition metal oxides by Amano Patiño, ME

“…This phase is composed of sheets of apex-linked Ni¹⁺O₄ and Ru²⁺O₄ squares in a checkerboard ordered arrangement. …”

Electrochemical electrodes based on graphene materials for sensing and energy applications by Wang, Xuewan

“…Graphene quantum dots (GQDs) are another kind of graphene derivatives but possess distinct structural, electronic and optical properties from graphene sheets due to strong quantum confinement and edge effects. …”
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Topochemical fluorination of some Ruddlesden-Popper phases by Zhang, R

“…The introduction of a cooperative octahedral tilt around the crystallographic z-axis leads to a local breaking of the inversion symmetry of the host lattice on fluorination, although the global inversion symmetry of the lattice is retained due to an alternation in the z-tilt direction in adjacent perovskite sheets.</p> <p>The substitution of Sr²⁺ with Ca²⁺ cations in YSr₂Mn₂O₇ led to an increasing distortion of the metal-oxide framework, resulting in the formation of an orthorhombic symmetry in space group <em>Pnnm</em> adopted by YSr_0.5Ca_1.5Mn₂O₇. …”