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RESEARCH PRODUCT

Charoite, as an example of a structure with natural nanotubes

Ute KolbWulf DepmeierIra V. RozhdestvenskayaIra V. RozhdestvenskayaMichael CzankEnrico Mugnaioli

subject

PhysicsBoron Nitride; Mirror Plane; Potassium Atom; Apical Oxygen; Kinematic ApproachApical OxygenAnalytical chemistryStructure (category theory)Ab initioengineering.materialLeast squaresPotassium AtomElectron diffractionCharoiteDirect methodsengineeringPrecession electron diffractionBoron NitrideKinematic ApproachBoron Nitride Mirror Plane Potassium Atom Apical Oxygen Kinematic ApproachMirror planeMirror Plane

description

Charoite from the Murun massif in Yakutiya, Russia (Vorob’ev 2008) was investigated using automated electron diffraction tomography (ADT) (Kolb et al. 2007, 2008; Mugnaioli et al. 2010) and precession electron diffraction (PED) (Mugnaioli et al. 2010, 2009), which allowed to determine the structure of charoite for the first time. The structure was solved ab initio in space group P21/m by direct methods using a fully kinematic approach. The least squares refinements with 2878 reflections F(hkl) >4s F converged to unweighted/weighted residuals R 1/wR 2 • 0.173/0.21 (Rozhdestvenskaya et al. 2010).

yearjournalcountryeditionlanguage
2012-01-01
10.1007/978-3-642-20018-2_6http://hdl.handle.net/11365/841650