Crystal Lattice Structures:	Creation Date:  9 Feb 2003
	Last Modified: 21 Oct 2004

The AlCl₃ (D0₁₅) Structure

You can now

• see the structure from several perspectives;
• examine the structure with an external viewer; or
• download the coordinates of the atoms in these pictures in XYZ format.
• visualize the structure (Uses the JMOL Applet)

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• Note that the underlying primitive unit cell is very close to a doubled hexagonal lattice.

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• Prototype: AlCl₃
• Pearson Symbol: mC16
• Strukturbericht Designation: D0₁₅
• Space Group: C2/m (Cartesian and lattice coordinate listings available)
• Number: 12
• Reference: Wyckoff, Crystal Structures, Vol. II, pp. 55-57.
• Other compounds with this structure: DyCl₃, ErCl₃, HoCl₃, InCl₃, LuCl₃, TlCl₃, TmCl₃, YbCl₃
• Primitive Vectors:

  A1	=	½ a X - ½ b Y
  A2	=	½ a X + ½ b Y
  A3	=	c cos(β) X + c sin(β) Z

• Basis Vectors:

  B1	=	- y1 A1 + y1 A2	=	+ y1 b Y	(Al)	(4g)
  B2	=	+ y1 A1 - y1 A2	=	- y1 b Y	(Al)	(4g)
  B3	=	+ x2 A1 + x2 A2 + z2 A3	=	+ [x2 + z2 c cos(β)] X + z2 c sin(β) Z	(Cl-I)	(4i)
  B4	=	- x2 A1 - x2 A2 - z2 A3	=	- [x2 + z2 c cos(β)] X - z2 c sin(β) Z	(Cl-I)	(4i)
  B5	=	+ (x3 - y3) A1 + (x2 + y3) A2 + z3 A3	=	+ [x3 + z3 c cos(β)] X + y3 b Y + z3 c sin(β) Z	(Cl-II)	(8j)
  B6	=	+ (x3 + y3) A1 + (x2 - y3) A2 + z3 A3	=	+ [x3 + z3 c cos(β)] X - y3 b Y + z3 c sin(β) Z	(Cl-II)	(8j)
  B7	=	- (x3 - y3) A1 - (x2 + y3) A2 - z3 A3	=	- [x3 + z3 c cos(β)] X - y3 b Y - z3 c sin(β) Z	(Cl-II)	(8j)
  B8	=	- (x3 + y3) A1 - (x2 - y3) A2 - z3 A3	=	- [x3 + z3 c cos(β)] X + y3 b Y - z3 c sin(β) Z	(Cl-II)	(8j)

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Structures indexed by: Strukturbericht Symbol Pearson Symbol Space Group Prototype

This is a mirror of an old page created at the Naval Research Laboratory Center for Computational Materials Science The maintained successor is hosted at http://www.aflowlib.org/CrystalDatabase/ and published as M. Mehl et al., Comput. Mater. Sci. 136 (Supp.), S1-S828 (2017).