This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: formula, which employs solid wedges only. The thick end of a wedge always is to be understood as being closer to the observer than the pointed end. Projecting the model of the methane tetrahedron into two dimensions, we may write the alternative (Fischer projection) formulae: H H H H H H H H H H H H The three graphical variations shown with or without wedges are used interchangeably to convey the same message regarding the spatial relationships of the atoms in methane. It is understood that in this convention the central carbon atom lies in the plane of the paper, the two hydrogen atoms on the horizontal bonds are closer to the observer than the plane of the paper, and the two hydrogen atoms on the vertical bonds are farther from the observer than the plane of the paper. 2002 Claude E. Wintner...
View Full Document