Crystal structure of a synthetic lithium zeolite
Abstract
The zeolite Li-A(BW) was first reported by Barrer and White (1951) and given the approximate formula, LiAlSiO4 · 2H2O. A recent examination of their specimens has resulted in the determination of the orthorhombic unit cell with a = 10.31, b = 8.18, c = 5.00 Å, and the proposal of a structure based on Pna 21. The x-ray analysis was based on 78 intensity data from powder, and refined to R = 0.13. The aluminosilicate framework consists of 4-, 6- and 8-membered rings, the 4-membered rings linking to form ribbons running lengthwise along the fibrous crystals, while the 8-membered rings enclose channels of about 3.2 Å free diameter running likewise. A column of water molecules is situated centrally in the channel adjacent to Li cations which are located each side of the 6-membered rings. Use is described in determining the space group and the ratio Al/(Si + Al), of a program which refines distances to prescribed values. Evidence of ordering of Si and Al atoms is also found. Li-A(BW) shows much similarity to bikitaite and cancrinite.
Articles in the same Issue
- The crystal structure of jordanite, Pb28As12S46*
- Crystal structure of a synthetic lithium zeolite
- The crystal structure of synthetic MgIV mica
- Die Molekular- und Kristallstruktur des Zimtsäurepyrrolidids C13H15ON*
- Verfeinerung der Kristallstruktur von Cerussit, PbCO3
- Verfeinerung der Kristallstruktur von K2Cu(C2O4)2 · 2 H2O
- Die Kristallstruktur von Caesium-Kupfer(II)-Oxalat-Dihydrat, Cs2Cu(C2O4) · 2H2O
- Zur Entwicklung des Begriffs “Gitterkomplex”
- Zur Definition des Punktlagen- und Gitterkomplex-Begriffes
- Eine Definition des Begriffs “Gitterkomplex”
- Röntgenographische Bestimmung der fehlgeordneten Schichtfolgen in Graphit-FeCl3-Einlagerungsverbindungen
- Atomic vibrations and thermal expansion of some silicates at high temperatures
- Ramanspektroskopische Untersuchungen an KJO3-Kristallen
- Lattice parameters and space group of plumbagin
Articles in the same Issue
- The crystal structure of jordanite, Pb28As12S46*
- Crystal structure of a synthetic lithium zeolite
- The crystal structure of synthetic MgIV mica
- Die Molekular- und Kristallstruktur des Zimtsäurepyrrolidids C13H15ON*
- Verfeinerung der Kristallstruktur von Cerussit, PbCO3
- Verfeinerung der Kristallstruktur von K2Cu(C2O4)2 · 2 H2O
- Die Kristallstruktur von Caesium-Kupfer(II)-Oxalat-Dihydrat, Cs2Cu(C2O4) · 2H2O
- Zur Entwicklung des Begriffs “Gitterkomplex”
- Zur Definition des Punktlagen- und Gitterkomplex-Begriffes
- Eine Definition des Begriffs “Gitterkomplex”
- Röntgenographische Bestimmung der fehlgeordneten Schichtfolgen in Graphit-FeCl3-Einlagerungsverbindungen
- Atomic vibrations and thermal expansion of some silicates at high temperatures
- Ramanspektroskopische Untersuchungen an KJO3-Kristallen
- Lattice parameters and space group of plumbagin
