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Local Atomic Order and Infrared Spectra of Biogenic Calcite

2006; Wiley; Volume: 46; Issue: 1-2 Linguagem: Inglês

10.1002/anie.200603327

1521-3773

Rachel Gueta, Amir Natan, Lia Addadi, Steve Weiner, Keith Refson, Leeor Kronik,

Hydrocarbon exploration and reservoir analysis

Shining light on local order: The relations between local crystalline order and peak intensities in the infrared spectra of calcite are explained in terms of different sensitivities to CaO and O⋅⋅⋅O distances (see picture) by comparing ab initio phonon spectra for ideal and distorted calcite unit cells with experimental spectra of various biogenic and geological calcites.