Reasons for polytypism of crystals of the type MX2 II. Clasification of faults and structural series of polytypes; Conditions of polytypic growth of CdI2, PbI2, CdBr2, SnS2, SnSe2 and Ti1.2S2

Pałosz, B.

doi:10.1002/pssa.2210800102

Cited by 38 publications

(10 citation statements)

References 53 publications

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“…We do not include three earlier works; ICSD #030347 [29] from 1926, #052370 [30] from 1929, and (which seems not generally well known) and differences in the manner in which the I-Pb-I sandwiches are stacked, these differences being the origin of the names of the polytypes. As of 1975, 40 polytypes had been reported [33] and by the mid 1980's, the structure of 17 had been determined [34,35]. PbI2 has the same general structure as CdI2.…”

Section: The Basic Structure Of Pbi2mentioning

confidence: 99%

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A review of polytypism in lead iodide

Beckmann

2010

Cryst. Res. Technol.

106

109

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Key words lead iodide structure, layered inorganic structures, viewing different polytypes Lead Iodide (PbI2) is an important inorganic solid for both basic scientific research and possible technological applications and in this brief review we discuss the structure of PbI2. Although the basic structure is a simple I-Pb-I layered structure with a [PbI6] 4-near-octahedron being the basic building block, there are many ways of stacking the layers which results in many polytypes. We present 20 of the 23 entries for the structure of PbI2 from the Inorganic Structural Database and order them by polytype. This represents more than 80 years of crystallographic research in the structure of this compound. We present a simple way to view the 2H, 4H, 6H, and 6R polytypes and extend the procedure to higher-order polytypes. We note a relationship, not generally appreciated, between the distortion of the near [PbI6] 4-octahedrons and the polytype. We suggest that the significance of vacancies has only recently been appreciated. We suggest that small discrepancies in structure determination are probably due to different distributions of vacancies and that there are, in practice, very many structures for macroscopic or even mesoscopic samples of a given polytype when vacancies are considered.

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Section: The Basic Structure Of Pbi2mentioning

confidence: 99%

“…PbI2 has the same general structure as CdI2. By the mid 1980's 152 polytypes of CdI2 were known [34].…”

Section: The Basic Structure Of Pbi2mentioning

confidence: 99%

A review of polytypism in lead iodide

Beckmann

2010

Cryst. Res. Technol.

106

109

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“…PbI 2 has the same general structure as CdI 2 . By the mid 1980's 152 polytypes of CdI 2 were known [34]. Some interesting general features emerge from Table 1.…”

Section: The Importance Of Pbimentioning

confidence: 94%

“…4--arrangement [32] (which seems not generally well known) and differences in the manner in which the I-Pb-I sandwiches are stacked, these differences being the origin of the names of the polytypes. As of 1975, 40 polytypes had been reported [33] and by the mid 1980's, the structure of 17 had been determined [34,35]. PbI 2 has the same general structure as CdI 2 .…”

Section: The Importance Of Pbimentioning

confidence: 99%

Correction: A review of polytypism in lead iodide

Beckmann¹

2010

Cryst. Res. Technol.

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Lead Iodide (PbI 2 ) is an important inorganic solid for both basic scientific research and possible technological applications and in this brief review we discuss the structure of PbI 2 . Although the basic structure is a simple I-Pb-I layered structure with a [PbI 6 ] 4-near-octahedron being the basic building block, there are many ways of stacking the layers which results in many polytypes. We present 20 of the 23 entries for the structure of PbI 2 from the Inorganic Structural Database and order them by polytype. This represents more than 80 years of crystallographic research in the structure of this compound. We present a simple way to view the 2H, 4H, 6H, and 6R polytypes and extend the procedure to higher-order polytypes. We note a relationship, not generally appreciated, between the distortion of the near [PbI 6 ] 4-octahedrons and the polytype. We suggest that the significance of vacancies has only recently been appreciated. We suggest that small discrepancies in structure determination are probably due to different distributions of vacancies and that there are, in practice, very many structures for macroscopic or even mesoscopic samples of a given polytype when vacancies are considered.

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“…The crystals grow generally in the shape of triangular or hexagonal platelets and can be grown from solutions, vapour and gels. The polytypism of PbI 2 seems to be a significant property of this material with no structure modification [9][10][11]. Lead iodide is isostructural to CdI 2 and 20 polytypes have been reported [12].…”

Section: Introductionmentioning

confidence: 99%

Influence of rare earth holmium on the properties of lead iodide

Matuchová

Procházková

Maixner

et al. 2005

phys. stat. sol. (c)

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Lead iodide PbI 2 is a promising material for X-ray and γ detector applications. Two methods of preparation of PbI 2 are compared, precipitation and direct synthesis. The direct synthesis is a new method that brings good results. As an example of rare earth elements admixture Holmium has been used in order to investigate their influence on the properties of the resulting lead iodide crystals. Properties of the resulting material are characterized by performing electrical resistivity measurements and low temperature photoluminescence investigations.

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Reasons for polytypism of crystals of the type MX2 II. Clasification of faults and structural series of polytypes; Conditions of polytypic growth of CdI2, PbI2, CdBr2, SnS2, SnSe2 and Ti1.2S2

Cited by 38 publications

References 53 publications

A review of polytypism in lead iodide

A review of polytypism in lead iodide

Correction: A review of polytypism in lead iodide

Influence of rare earth holmium on the properties of lead iodide

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