Structural relationships among some BePO-, BeAsO-, and AISiO-RHO framworks

John B. Parise; David R. Corbin; Lloyd Abrams; Paul Northrup; John Rakovan; Tina M. Nenoff; Galen D. Stucky

doi:10.1016/0144-2449(94)90050-7

Structural relationships among some BePO-, BeAsO-, and AISiO-RHO framworks

John B. Parise
, David R. Corbin
, Lloyd Abrams
, Paul Northrup
, John Rakovan
, Tina M. Nenoff
, Galen D. Stucky

Geosciences

DuPont
Stony Brook University
University of California at Santa Barbara

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The structures of Tl⁺-exchanged and Rb⁺-exchanged forms of AlSiO-, BeAsO-, and BePO-rho have been investigated using neutron or synchrotron X-ray powder diffraction data collected at room temperature. All materials, except TlAlsiO-rho, crystallize in the space group 123, with a = 13.6469(6) A ̊ for TlBePO-rho, a = 13.4791(5) A ̊ for RbBePO-rho, and a = 13.998(1) A ̊ for (Rb,Tl)BeAsO-rho; for TlAlSiO-rho (I43m), a = 14.4636(7) A ̊. The extraframework cations are distributed over the double 9-ring (D8R), single 8-ring (S8R), and two single 6-ring (S6R) sites. Dehydrated single crystals o the (Ca,Li)-beryllophosphate mineral Pahasapaite were also studied to temperatures of 500°C. Unlike AlSiO-rho containing singly charged extraframework cations, the (Ca,Li)-BePO material shows little.

Original language	English
Pages (from-to)	25-34
Number of pages	10
Journal	Zeolites
Volume	14
Issue number	1
DOIs	https://doi.org/10.1016/0144-2449(94)90050-7
State	Published - Jan 1994

Keywords

neutron diffraction
rho
Rietveld Refinement
synchrotron
Zeolite

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10.1016/0144-2449(94)90050-7

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@article{503fd0b92e7f4c69b38a23e502ddd2e2,

title = "Structural relationships among some BePO-, BeAsO-, and AISiO-RHO framworks",

abstract = "The structures of Tl+-exchanged and Rb+-exchanged forms of AlSiO-, BeAsO-, and BePO-rho have been investigated using neutron or synchrotron X-ray powder diffraction data collected at room temperature. All materials, except TlAlsiO-rho, crystallize in the space group 123, with a = 13.6469(6) A ̊ for TlBePO-rho, a = 13.4791(5) A ̊ for RbBePO-rho, and a = 13.998(1) A ̊ for (Rb,Tl)BeAsO-rho; for TlAlSiO-rho (I43m), a = 14.4636(7) A ̊. The extraframework cations are distributed over the double 9-ring (D8R), single 8-ring (S8R), and two single 6-ring (S6R) sites. Dehydrated single crystals o the (Ca,Li)-beryllophosphate mineral Pahasapaite were also studied to temperatures of 500°C. Unlike AlSiO-rho containing singly charged extraframework cations, the (Ca,Li)-BePO material shows little.",

keywords = "neutron diffraction, rho, Rietveld Refinement, synchrotron, Zeolite",

author = "Parise, \{John B.\} and Corbin, \{David R.\} and Lloyd Abrams and Paul Northrup and John Rakovan and Nenoff, \{Tina M.\} and Stucky, \{Galen D.\}",

year = "1994",

month = jan,

doi = "10.1016/0144-2449(94)90050-7",

language = "English",

volume = "14",

pages = "25--34",

journal = "Zeolites",

issn = "0144-2449",

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TY - JOUR

T1 - Structural relationships among some BePO-, BeAsO-, and AISiO-RHO framworks

AU - Parise, John B.

AU - Corbin, David R.

AU - Abrams, Lloyd

AU - Northrup, Paul

AU - Rakovan, John

AU - Nenoff, Tina M.

AU - Stucky, Galen D.

PY - 1994/1

Y1 - 1994/1

N2 - The structures of Tl+-exchanged and Rb+-exchanged forms of AlSiO-, BeAsO-, and BePO-rho have been investigated using neutron or synchrotron X-ray powder diffraction data collected at room temperature. All materials, except TlAlsiO-rho, crystallize in the space group 123, with a = 13.6469(6) A ̊ for TlBePO-rho, a = 13.4791(5) A ̊ for RbBePO-rho, and a = 13.998(1) A ̊ for (Rb,Tl)BeAsO-rho; for TlAlSiO-rho (I43m), a = 14.4636(7) A ̊. The extraframework cations are distributed over the double 9-ring (D8R), single 8-ring (S8R), and two single 6-ring (S6R) sites. Dehydrated single crystals o the (Ca,Li)-beryllophosphate mineral Pahasapaite were also studied to temperatures of 500°C. Unlike AlSiO-rho containing singly charged extraframework cations, the (Ca,Li)-BePO material shows little.

AB - The structures of Tl+-exchanged and Rb+-exchanged forms of AlSiO-, BeAsO-, and BePO-rho have been investigated using neutron or synchrotron X-ray powder diffraction data collected at room temperature. All materials, except TlAlsiO-rho, crystallize in the space group 123, with a = 13.6469(6) A ̊ for TlBePO-rho, a = 13.4791(5) A ̊ for RbBePO-rho, and a = 13.998(1) A ̊ for (Rb,Tl)BeAsO-rho; for TlAlSiO-rho (I43m), a = 14.4636(7) A ̊. The extraframework cations are distributed over the double 9-ring (D8R), single 8-ring (S8R), and two single 6-ring (S6R) sites. Dehydrated single crystals o the (Ca,Li)-beryllophosphate mineral Pahasapaite were also studied to temperatures of 500°C. Unlike AlSiO-rho containing singly charged extraframework cations, the (Ca,Li)-BePO material shows little.

KW - neutron diffraction

KW - rho

KW - Rietveld Refinement

KW - synchrotron

KW - Zeolite

UR - https://www.scopus.com/pages/publications/0028262753

U2 - 10.1016/0144-2449(94)90050-7

DO - 10.1016/0144-2449(94)90050-7

M3 - Article

AN - SCOPUS:0028262753

SN - 0144-2449

VL - 14

SP - 25

EP - 34

JO - Zeolites

JF - Zeolites

IS - 1

ER -

Structural relationships among some BePO-, BeAsO-, and AISiO-RHO framworks

Abstract

Keywords

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