Material Name: | MCM-22 | ||||
Chemical Formula: |
|H2.4Na3.1 | [Al0.4B5.1Si66.5O144]-MWW |
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Unit Cell: |
hexagonal |
P 6/m m m (# 191) |
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a' = 14.2080 Å | b' = 14.2080 Å | c' = 24.9450 Å | |||
α' = 90.000° | β' = 90.000° | γ' = 120.000° | |||
Framework Density: |
16.5 T/1000 Å3 |
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Channels: |
[001] 10 4.0 x 5.5** | [001] 10 4.1 x 5.1**
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References: |
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Leonowicz, M.E., Lawton, J.A., Lawton, S.L. and Rubin, M.K. | |||
"MCM-22: A molecular sieve with two independent multidimensional channel systems" | |||
Science, 264, 1910-1913 (1994) |
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Name and Code derivation: |
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Mobil Composition of Matter-twenty-two MCM-22 (twenty-two) MWW |
Limiting Rings |
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10-ring viewed normal to [001] between 'layers' | 10-ring viewed normal to [001] within 'layers' |