Structural And Chemistry Differences Between Quartz, Α-Fepo4)
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In this paragraph, the structural and chemistry differences between quartz, α-FePO4 and β-FePO4 will be discussed. Quartz do have some similarities with the other 2 components. The structure of quartz, similarly depends on the temperature of the environment. Quartz can exist as an alpha or beta form. This is one similarity between the 3. The difference between α-FePO4 and β-FePO4, is that α-FePO4 is the most common form of existence for FePO4 and is structurally similar to the alpha configuration of alpha quartz. Structurally, α-quartz and α-FePO4 are the same. Both have a tetrahedral and a space group of P3121, which is considered to be trigonal in the crystal class system. β-FePO4 and β-quartz on the other hand, have a space group is P6422 that leads it to have a hexagonal in the crystal class system. The α-phase of both quartz and FePO4 are known to be the common configuration of its respective compounds. Both will slowly transition to become its β counterparts under high temperature. (846K for quartz and 980K for FePO4) During this first order transition, the α phase compound’s properties would slowly lean towards the β phase counterpart’s. For α-quartz, the bond angle of Si-O-Si would increase from 144˚ to 153˚ which …show more content…
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As mentioned earlier, α-FePO4 has a P3121 that is trigonal (a=b=c. α= β= ɣ≠ 90 degrees) β-FePO4 is P6422 and is hexagonal (a= b≠c. α= β=90 degrees ɣ = 120 degrees. The configuration of FePO4 changes according to temperature. At temperatures below 980K, FePO4 exists as α-FePO4. At temperatures 980 and above, FePO4 exists as β-FePO4. This is seen in the picture below (Figure 1 and 2) From the 2 figures provided, the shape of the molecules can be seen. Figure 1 shows the obvious trigonal shape of molecules while figure 2 shows the hexagonal shape. @294K (Figure 1) @1005K (Figure
In this paragraph, the structural and chemistry differences between quartz, α-FePO4 and β-FePO4 will be discussed. Quartz do have some similarities with the other 2 components. The structure of quartz, similarly depends on the temperature of the environment. Quartz can exist as an alpha or beta form. This is one similarity between the 3. The difference between α-FePO4 and β-FePO4, is that α-FePO4 is the most common form of existence for FePO4 and is structurally similar to the alpha configuration of alpha quartz. Structurally, α-quartz and α-FePO4 are the same. Both have a tetrahedral and a space group of P3121, which is considered to be trigonal in the crystal class system. β-FePO4 and β-quartz on the other hand, have a space group is P6422 that leads it to have a hexagonal in the crystal class system. The α-phase of both quartz and FePO4 are known to be the common configuration of its respective compounds. Both will slowly transition to become its β counterparts under high temperature. (846K for quartz and 980K for FePO4) During this first order transition, the α phase compound’s properties would slowly lean towards the β phase counterpart’s. For α-quartz, the bond angle of Si-O-Si would increase from 144˚ to 153˚ which …show more content…
Paragraph 2
As mentioned earlier, α-FePO4 has a P3121 that is trigonal (a=b=c. α= β= ɣ≠ 90 degrees) β-FePO4 is P6422 and is hexagonal (a= b≠c. α= β=90 degrees ɣ = 120 degrees. The configuration of FePO4 changes according to temperature. At temperatures below 980K, FePO4 exists as α-FePO4. At temperatures 980 and above, FePO4 exists as β-FePO4. This is seen in the picture below (Figure 1 and 2) From the 2 figures provided, the shape of the molecules can be seen. Figure 1 shows the obvious trigonal shape of molecules while figure 2 shows the hexagonal shape. @294K (Figure 1) @1005K (Figure