Question

what is the dimeric structure of AlCl3​

Answer 1

This change in structure is related to the lower density of the liquid phase (1.78 g/cm3) vs solidaluminium trichloride (2.48 g/cm3). Al2Cl6 dimersare also found in the vapour phase. At higher temperatures, the Al2Cl6 dimers dissociate into trigonal planar AlCl3, which is structurally analogous to BF3.

Answer 2

Answer:

This change in structure is related to the lower density of the liquid phase (1.78 g/cm3) vs solidaluminium trichloride (2.48 g/cm3). Al2Cl6 dimersare also found in the vapour phase. At higher temperatures, the Al2Cl6 dimers dissociate into trigonal planar AlCl3, which is structurally analogous to BF3.

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