If you like us, please share us on social media.
The latest UCD Hyperlibrary newsletter is now complete, check it out.
Copyright (c) 2006-2014 MindTouch Inc.
This file and accompanying files are licensed under the MindTouch Master Subscription Agreement (MSA).
At any time, you shall not, directly or indirectly: (i) sublicense, resell, rent, lease, distribute, market, commercialize or otherwise transfer rights or usage to: (a) the Software, (b) any modified version or derivative work of the Software created by you or for you, or (c) MindTouch Open Source (which includes all non-supported versions of MindTouch-developed software), for any purpose including timesharing or service bureau purposes; (ii) remove or alter any copyright, trademark or proprietary notice in the Software; (iii) transfer, use or export the Software in violation of any applicable laws or regulations of any government or governmental agency; (iv) use or run on any of your hardware, or have deployed for use, any production version of MindTouch Open Source; (v) use any of the Support Services, Error corrections, Updates or Upgrades, for the MindTouch Open Source software or for any Server for which Support Services are not then purchased as provided hereunder; or (vi) reverse engineer, decompile or modify any encrypted or encoded portion of the Software.
A complete copy of the MSA is available at http://www.mindtouch.com/msa
This page is going to discuss the structure of the molecule calcium fluoride. This molecule is polyatomic the contains sixteen valance electrons that help to form the bounds of this molecule. These bounds and remaining lone pairs of electrons are going to determine the structure and shape of the molecule.
Calcium Fluoride is a solid and when their are multiple molecules around they form a cube like structure that is centralized around the calcium molecules. The crystal lattice structure that Calcium Fluoride is also known as the fluorite structure. Figure# 1 shows what Calcium Fluoride looks like when its in the crystal lattice structure. When Calcium Fluoride is in a single molecule it forms a Quasilinear structure. Quasilinear means the molecule resonates between a linear shape and a bent shape.
Calcium Fluoride is a polyatomic molecule that contains one calcium molecule and two fluoride molecules. Calcium Fluoride is a Quasilinear molecule the bonds are created from the single electrons of calcium and the single electron from fluoride. CaF2 has its electrons contained with in the 3d orbitals and are able to move between dyz and dz2 squared. The molecule in linear when they are in the dz2 orbitals the molecule is also the most stable in this shape. When the electrons are in the dyz orbitals the molecule becomes bent. The molecule resonates between these two shapes making it quasilinear. Figures two and three show how the d-orbitals cause the molecule to bend.
Fig # 1
Fig # 2 Fig # 3
1. Q. How is CaF2 made in in the lab?
A. It is made by mixing Calcium Carbonate and hydrofluoric acid to give calcium fluoride, carbon dioxide, and water.
2. Q. Is CaF2 a polar molecule?
A. In the Linear shape CaF2 is non-polar, but in the bent shape it becomes polar.
3. Q. Is CaF2 a covalent or ionic molecule?
A. The molecule is covalent because each of the atoms are sharing an elelectrons to form the bonds.
4. Q. How Many total electron are there in the CaF2 Molecule?
A. There are 16 electrons in CaF2.
5. Q. Why is CaF2 Molecule bent when the electrons are in the dyz orbitals?
An NSF funded Project