What is Ozone Molecule? What is the molecular structure of ozone?

Ozone (molecular formula O3) is an allotropic form of oxygen (O2), and at room temperature, it is a light blue gas with a special odor. The word ozone is derived from the Greek word ozon, which means "to smell". Ozone is mainly found in the ozone layer in the lower stratosphere, 20 kilometers above the Earth's surface, and contains about 50 ppm.

It absorbs short-wave ultraviolet rays, which are harmful to the human body, preventing them from reaching the earth. O2 is irradiated with ultraviolet light. In the atmosphere, oxygen molecules are decomposed into oxygen atoms (O) due to high-energy radiation, and the oxygen atoms combine with another oxygen molecule to form ozone.

Ozone will react with oxygen atoms, chlorine or other free substances to decompose and disappear, because of this repeated generation and disappearance, the ozone content can be maintained in a certain equilibrium state, and about 90% of the ozone in the atmosphere exists in the area between 15 and 50 kilometers above the ground, that is, the stratosphere (stratosphere), in the lower layer of the stratosphere, that is, 20 to 30 kilometers above the ground, is the area with the highest ozone concentration, is the ozone layer. The ozone layer absorbs most of the sun's ultraviolet rays to shield life on the earth's surface from ultraviolet rays.

Destruction of the ozone layer.

Some of the used CFCs rise to the stratosphere. Due to their low activity, low biodegradability and insoluble in water, CFCs are difficult to decompose. Chlorofluorocarbons (CFCs) break down chlorine radicals when exposed to the sun's ultraviolet rays, destroying ozone.

ozone reduction and chlorofluorocarbons). Since this destruction is a chain reaction, the power is quite impressive. It is estimated that a single chlorine atom can destroy nearly 100,000 ozone molecules.

The molecule formed by three oxygen atoms is ozone with the chemical formula O3.

O3 is the molecular formula of ozone, and freon is emitted into the atmosphere when exposed to ultraviolet light to form a catalyst that decomposes ozone.

O3 Allotrope of oxygen.

Freon causes the breakdown of ozone molecules, which acts as a catalyst.

O3 Allotrope of oxygen.

It is an allotrope of oxygen.

The molecular structure of ozone is V-typeIsosceles triangleStructure.

Molecular structure of ozone: The ozone molecule is made up of three oxygen atoms. It is configured in a V-shaped isosceles triangle structure, with three atoms centered on one O atom and two other O atoms forming covalent bonds.

The middle O atom donates 2 electrons, and the next two O atoms each donate an electron, forming a special chemical bond.

The three o atoms enjoy these 4 electrons equally.

Structural features

The three oxygen atoms are located at the three vertices of the triangle respectively, the bond angle is , and the bond length is. The center of gravity of the three oxygen atoms is not in the middle of the whole molecule, and the central oxygen atom uses his two unpaired electrons to combine with one of the other two oxygen atoms respectively, and forms two bonds with sp2 hybrid orbitals, and the three hybrid orbitals are occupied by lone pairs, and forms a delocalized bond of 3 oxygen atoms and 4 electrons with one electron provided by the two coordination protograndes.

Molecular structure of ozone: The ozone molecule is made up of three oxygen atoms.

It is configured in a V-shaped isosceles triangle structure, and the three oxygen atoms are located in the three vertices of the triangle, with a bond angle and a bond length. The center of gravity of the three oxygen atoms is not in the middle of the whole molecule, and the central oxygen atom uses his two unpaired electrons to combine with one of the other two oxygen atoms respectively, and forms two bonds with sp2 hybrid orbitals, and the three hybrid orbitals are occupied by lone pairs, and forms a delocalized bond of 3 oxygen atoms and 4 electrons with one electron provided by each of the two coordination atoms. The central oxygen so it has a dipole distance from both sides of this grandson oxygen.

It is the only polar element.

The special structure of the odor hood hidden oxygen determines its strong oxidation, high activity and instability.

The lead matrix of the ozone molecule is an O3 molecule, which is composed of three oxygen atoms. Each oxygen atom is connected to its neighbors by covalent bonds to form a triangular structure.

The structure of the ozone molecule is made up of three oxygen atoms (O). Two of the oxygen chain-side atoms form a double bond by sharing an electron pair, and bright oak forms an oxygen molecule (O2). The third oxygen atom forms an ozone molecule (O3) by sharing two electron pairs to form another double bond with one of the oxygen atoms in the oxygen molecule.

The molecular formula of ozone is O3.

The molecular structure of oxygen (O) is composed of three oxygen atoms (O). Two of the oxygen atoms are linked together by a double chashan bond to form an O=O oxygen molecule. The third oxygen atom is linked together with this oxygen molecule by a single bond to form an O-O-O triangular structure.

Answer: The molecule formed by three oxygen atoms is ozone with the chemical formula O3.

o-o=o <—o=o-o (resonant type).

The whole molecule is V-shaped, the center O is sp2 hybridized, and the molecule contains a faction 3 and 4 major faction bonds.

o The molecular shape is polylinear, or V-shaped, the middle O atom adopts sp2 hybridization, the bond angle is 120°, the pair of electrons of O (the top pair) is an unshared electron pair, the two single electrons of O on the plane form a sigma bond with the two O atoms at the edge, and O has a pair of electrons and the two electrons of O at the edge of the edge, a total of 4 electrons form a delocalized bond.

Ozone is elemental. Matter is divided into mixture and pure matter, the mixture has a variety of atoms or molecules, pure matter has a molecule (group) or atomic composition, in which the pure substance is divided into compounds and elementals, there are a variety of elements composed of pure substances called compounds, and pure substances composed of an element are called elemental.

Note that a substance made up of one element is not necessarily pure, such as oxygen and ozone (both molecules made up of oxygen atoms).

The role of ozone:

Ozone is recognized worldwide as a broad-spectrum, highly effective biocide. At present, ozone is widely used in many countries and regions, such as drinking water disinfection, medical water disinfection, sewage treatment, air disinfection in food factories and pharmaceutical factories, paper bleaching and other industries and fields; Some small civil ozone electrical products have entered people's daily life.

At a certain concentration, ozone can quickly kill bacteria in water and air, and more importantly, ozone is reduced to oxygen after sterilization, so it is a green and environmentally friendly disinfectant. However, because the concentration of ozone is harmful to the human body, the air in the premises must be disinfected 30-60 minutes after the disinfection.

Ozone is easily dissolved in water to produce ozone water, ozone in the process of dissolving in water, in addition to killing bacteria in the water, but also decompose organic matter and other harmful pollutants in the water, and at the same time have a decolorizing effect on water.

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Analysis: Some substances emitted into the atmosphere by human activities enter the stratosphere and chemically react with the ozone there, resulting in ozone depletion, and the phenomenon of reducing ozone concentration is called ozone layer depletion or ozone layer depletion.

Ozone in the ozone layer is naturally formed in the atmosphere higher above the ground, and its formation mechanism is:

The oxygen in the upper atmosphere is turned into free oxygen atoms by ultraviolet radiation from sunlight, and some of the free oxygen atoms combine with oxygen to form ozone, and 90% of ozone in the atmosphere is formed in this way.

Ozone molecules are unstable molecules, and ultraviolet radiation from the sun can not only produce ozone, but also decompose ozone to produce oxygen molecules and free oxygen atoms, so the concentration of ozone in the atmosphere depends on the dynamic equilibrium between its generation and decomposition rate.

Anthropogenic ozone depleting substances are mainly chlorofluoroalkanes (CFCs), which are widely used in refrigerators and air conditioners, foaming, and electronic device cleaning, as well as bromofluoroalkanes (halons) used in special occasions to extinguish fires. These substances are called ozone-depleting substances, and in order to protect the ozone layer, the international community has included these substances in the phase-out or controlled use list, so they are also called "controlled substances".

Ozone-depleting substances are very stable in the troposphere of the atmosphere and can stay for a long time, taking CFC12 as an example, it has a life span of about 120 years in the troposphere, so this kind of substances can diffuse to all parts of the atmosphere, but after reaching the stratosphere, it will be decomposed by the sun's ultraviolet radiation, releasing very active free chlorine atoms or bromine atoms, participating in a series of chemical reactions that lead to ozone depletion: free chlorine atoms or bromine atoms react with ozone molecules to produce chlorine or bromine monoxide, taking one of the oxygen atoms of the ozone molecule and turning it into an oxygen molecule. Chlorine or bromine monoxide reacts with free oxygen atoms, releasing "snatched" oxygen atoms to form more oxygen molecules and free chlorine atoms or free bromine atoms, and new free chlorine atoms or bromine atoms re-react with other ozone molecules to form oxygen molecules and chlorine or bromine monoxide again, such a reaction cycle continues, each free chlorine atom or bromine can destroy about 100,000 ozone molecules, which is why chlorofluoroalkanes or bromofluoroalkanes destroy the ozone layer.

Ozone is a gas, ozone is an allotrope of oxygen, the chemical formula is O3, the formula amount, a light blue gas with a fishy smell, ozone has strong oxidation, is a stronger oxidizing agent than oxygen, and can undergo oxidation reactions at lower temperatures.

Ozone is a powerful bleach agent in the presence of water. Unsaturated organic compounds are also prone to the formation of ozonions at low temperatures. It is used as a strong oxidizing agent, bleaching agent, fur deodorant, air purifier, disinfectant and disinfectant, and disinfection and deodorization of drinking water.

Ozone can be used to replace many catalytic oxidations or high-temperature oxidations in chemical production, simplifying production processes and increasing productivity.