Material Name:	PKU-9
	Chemical Formula:	|(ETMA+)8| [Ge28Al8O72]-PUN ETMA+ = C5H14N+ = ethyltrimethylammonium ion = ethyl(trimethyl)azanium SMILES: CC[N+](C)(C)C Images:  stick or Show Model
	Unit Cell:	orthorhombic	P b c n (# 60)
		a' = 15.5780 Å	b' = 9.1704 Å	c' = 19.9930 Å
		α' = 90.000°	β' = 90.000°	γ' = 90.000°
	Framework Density:	12.6 T/1000 Å3

Channels:

[100] 10 4.7 x 7.0* <-> [010] 10 4.4 x 6.1* <-> [001] 8 4.5 x 5.6* Dimensionality   Sorption (molecular cross section > 3.4Å): 3-dimensional   Topological (pore opening > 6-ring): 3-dimensional

	References:
		Su, J., Wang, Y., Wang, Z. and Lin, J.
			"PKU-9: an aluminogermanate with a new three-dimensional zeolite framework constructed from CGS layers and spiro-5 units"
			J. Am. Chem. Soc., 131, 6080-6081 (2009)

	Name and Code derivation:
		Peking University - nine   PKU-9 (nine)   PUN