AlCl3

Aluminum chloride · Aluminium chloride, Aluminum trichloride

Aluminum chloride is a versatile chemical compound widely utilized as a catalyst in various industrial chemical reactions. It plays a critical role in the synthesis of organic compounds and is frequently employed in the production of polymers and specialized chemical intermediates.

AlCl
Crystal structure of AlCl3 (monoclinic, C2/m (No. 12))
Ground-state structure · Materials Project
Overview

Key Properties

Cross-validated computational properties for Aluminum chloride, aggregated across 5 databases.

Band Gap

5.26 eV
Range across DFT structures

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
3 DFT sources

Structures

77
5 databases, 23 space groups
Validation

Cross-Source DFT Agreement

How well independent DFT databases agree on the thermodynamics of AlCl3. Tight agreement means computed properties can be trusted without re-running calculations.

Agreement Score

1.00 / 1.00
Trust tier: medium

Hull Spread

0.000 eV
EAH spread across sources

Sources Compared

2
jarvis, materials_project

Space Group Consensus

All match
Crystallography

Reported Structures

Lowest-energy structures reported for AlCl3, ranked by energy above hull.

Space GroupCrystal SystemBand Gap (eV)E above hull (eV/atom)E/atom (eV)Density (g/cm³)
C2/m (No. 12)monoclinic5.260.0000-7.9902.41
P-3m1 (No. 164)trigonal0.000.9093-7.0812.69
P1 (No. 1)Triclinic2.32
P-1 (No. 2)Triclinic2.33
C2/m (No. 12)Monoclinic2.83
P-1 (No. 2)Triclinic2.84
P1 (No. 1)Triclinic2.77
C2/m (No. 12)Monoclinic2.26
C2/m (No. 12)Monoclinic2.22
P2 (No. 3)Monoclinic4.25
P2/m (No. 10)Monoclinic2.13
P-1 (No. 2)Triclinic4.34
Synthesis

Synthesis Routes

Literature-extracted synthesis procedures targeting AlCl3.

Sol-Gel
Procedure available · ceder_solid_state
Sol-Gel
Procedure available · ceder_solid_state
Sol-Gel
Procedure available · ceder_solid_state
Uses

Applications

Where Aluminum chloride is used.

Friedel-Crafts reactionsPolymerization processesProduction of ethylbenzeneManufacturing of pharmaceuticalsDye synthesis
Reference

Frequently Asked Questions

Common questions about Aluminum chloride, answered from cross-validated data.

What is AlCl3?

Aluminum chloride is a versatile chemical compound widely utilized as a catalyst in various industrial chemical reactions. It plays a critical role in the synthesis of organic compounds and is frequently employed in the production of polymers and specialized chemical intermediates.

More questions
What is AlCl3 used for?
Aluminum chloride (AlCl3) is used in friedel-Crafts reactions, polymerization processes, production of ethylbenzene, manufacturing of pharmaceuticals, and dye synthesis.
What is the band gap of AlCl3?
Aluminum chloride (AlCl3) has a DFT-computed band gap of 5.26 eV across 77 reported structures.
Is AlCl3 a metal, semiconductor, or insulator?
With a wide band gap up to 5.26 eV it is an insulator / wide-band-gap material.
Is AlCl3 thermodynamically stable?
Yes — Aluminum chloride (AlCl3) sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
What is the crystal structure of AlCl3?
The lowest-energy reported polymorph of Aluminum chloride (AlCl3) is monoclinic symmetry, space group C2/m (No. 12).
What is the density of AlCl3?
The computed density of the ground-state structure of Aluminum chloride (AlCl3) is 2.41 g/cm³.
How many polymorphs of AlCl3 are known?
77 structures of AlCl3 are reported across 5 databases, spanning 23 distinct space groups.
How is AlCl3 synthesized?
Literature-reported routes for AlCl3 include sol-gel (3 procedures documented).
What elements does AlCl3 contain?
Aluminum chloride (AlCl3) contains Al and Cl (2 elements).
Where does the data for AlCl3 come from?
AlCl3 data is cross-referenced from materials_project, mpaloe.
Data sources & attribution
  • materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
  • mpaloe — Data from mpaloe.

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