Material Name:	IPC-4
	Chemical Formula:	[Si60O120]-PCR
	Unit Cell:	monoclinic	C 1 m 1 (# 8)
		a' = 20.1140 Å	b' = 13.9560 Å	c' = 12.3510 Å
		α' = 90.000°	β' = 114.800°	γ' = 90.000°
	Framework Density:	19.1 T/1000 Å3

Channels:

[001] 10 3.4 x 5.6* <-> [010] 8 3.5 x 4.7* Dimensionality   Sorption (molecular cross section > 3.4Å): 2-dimensional   Topological (pore opening > 6-ring): 2-dimensional

	References:
		Roth, W.J., Nachtigall, P., Morris, R.E., Wheatley, P.S., Seymour, V.R., Ashbrook, S.E., Chlubna, P., Grajciar, L., Polozij, M., Zukal, A., Shvets, O. and Cejka, J.
			"A family of zeolites with controlled pore size prepared through a top-down method"
			Nature Chemistry, , 628-633 (2013)

	Name and Code derivation:
		Institute of Physical Chemistry (Acad. of Science, Czech Republic) - four   IPC-4 (four)   PCR