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Powder X-ray diffraction of oriented and intercalated lead iodide

Published online by Cambridge University Press:  05 March 2012

Richard W. Schaeffer  and
Monica Ardelean
Richard W. Schaeffer*
Affiliation:
Chemistry Department, Franklin and Marshall College, Lancaster, Pennsylvania 17604
Monica Ardelean
Affiliation:
Chemistry Department, Franklin and Marshall College, Lancaster, Pennsylvania 17604
*
a)Author to whom correspondence should be addressed; electronic mail: R_Schaeffer@fandm.edu
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Abstract

Polycrystalline lead iodide, PbI2, was recrystallized from hot water to reproducibly obtain flat plate-like crystals, which manifested extreme preferred orientation greatly favoring the 001, 002, 003, and 004 planes. Polycrystalline samples of PbI2 were intercalated with tripropylamine, simultaneously producing a “new” intercalate 001 peak at 7.791°2θ (d=1.1347 nm) and diminishing the host PbI2 001 peak at 12.67°2θ (d=0.6980 nm). This is consistent with large increases in the c direction of the unit cell associated with inserting a guest between adjacent iodide layers of the host PbI2. Experimental powder diffraction results are compared to theoretical values calculated using CRYSTALMAKER and CRYSTALDIFFRACT software

Keywords

X-ray diffractionlead(II) iodideintercalationguest–host interactionspreferred orientationlayered materials

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Type
Technical Articles
Information
Powder Diffraction , Volume 16 , Issue 1 , March 2001 , pp. 16 - 19
Copyright
Copyright © Cambridge University Press 2001

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