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In chemistry, a halide (rarely halogenide [1]) is a binary chemical compound, of which one part is a halogen atom and the other part is an element or radical that is less electronegative (or more electropositive) than the halogen, to make a fluoride, chloride, bromide, iodide, astatide, or theoretically tennesside compound.
The halogens may either be bonded to another element through covalent bonding or (as in many metal halides) present in the form of the halide ion. Subcategories This category has the following 13 subcategories, out of 13 total.
The Atacama Desert has large quantities of halide minerals as well as chlorates, iodates, oxyhalides, nitrates, borates and other water-soluble minerals. Not only do those minerals occur in subsurface geologic deposits, they also form crusts on the Earth's surface due to the low rainfall (the Atacama is the world's driest desert as well as one ...
In this structure both the metals and halides feature octahedral coordination geometry, in which each ion has a coordination number of six. Caesium chloride, bromide, and iodide crystallize in a body-centered cubic lattice that accommodates coordination number of eight for the larger metal cation (and the anion also).
Partial oxidation of a halide: 2 PCl 3 + O 2 → 2 POCl 3. In this example, the oxidation state increases by two and the electrical charge is unchanged. Partial halogenation of an oxide: 2 V 2 O 5 + 6 Cl 2 + 3 C → 4 VOCl 3 + 3 CO 2; Oxide replacement: CrO 2− 4 + 2 Cl − + 4 H + → CrO 2 Cl 2 + 4 H 2 O
With halide ions there are examples of all of these geometries along with some anions with octahedrally coordinated indium and with bridging halogen atoms, In 2 X 3− 9 with three bridging halogen atoms and In 2 X − 7 with just one. Additionally there are examples of indium with square planar geometry in the InX 5 2− ion.
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The polyhalogen ions always have the heaviest and least electronegative halogen present in the ion as the central atom, making the ion asymmetric in some cases. For example, [Cl 2 F] + has a structure of [Cl−Cl−F] + but not [Cl−F−Cl] +.