Electrical and optical anisotropy in rutile TiO₂

Perturbation of the UV transitions of formaldehyde by TiO2photocatalysts and Aunnanoclusters

“…However, the interactions are assumed to be purely ionic and thus partial charges of +4 and À2 have been used for Ti and O, respectively. The isotropic static polarizabilities of the Ti and O atoms in TiO 2 have been calculated by A. Eddiouane et al 61 to be 1.254517 a.u. for Ti and 18.105128 a.u.…”

Orthorhombic Symmetry and Anisotropic Properties of Rutile TiO2

“…The characteristic feature that distinguishes rutile from other phases of TiO 2 is the large birefringence. 4 The refractive indices of rutile TiO 2 range from about 2.5−3.0 in the visible range of wavelengths. 5,6 TiO 2 is also a very chemically resistant compound.…”

“…However, rutile is the most stable polymorphic form of TiO 2 . − In its pure form, rutile TiO 2 is colorless with a bluish tint, but depending on the impurities, it can be reddish-brown, sometimes yellowish, bluish, or violet. The characteristic feature that distinguishes rutile from other phases of TiO 2 is the large birefringence . The refractive indices of rutile TiO 2 range from about 2.5–3.0 in the visible range of wavelengths. , TiO 2 is also a very chemically resistant compound .…”