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Polymorphism and aging in terephthalic acid
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| Zeitschriftentitel: | Crystal Research and Technology |
|---|---|
| Personen und Körperschaften: | , |
| In: | Crystal Research and Technology, 20, 1985, 2, S. 201-208 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Saska, Michael Myerson, Allan S. Saska, Michael Myerson, Allan S. |
|---|---|
| author |
Saska, Michael Myerson, Allan S. |
| spellingShingle |
Saska, Michael Myerson, Allan S. Crystal Research and Technology Polymorphism and aging in terephthalic acid Condensed Matter Physics General Materials Science General Chemistry |
| author_sort |
saska, michael |
| spelling |
Saska, Michael Myerson, Allan S. 0232-1300 1521-4079 Wiley Condensed Matter Physics General Materials Science General Chemistry http://dx.doi.org/10.1002/crat.2170200215 <jats:title>Abstract</jats:title><jats:p>The role of the polymorphic transformation was investigated by X‐Ray diffraction in the habit modification process of terephthalic acid reported earlier (Gaines, Myerson). Contrary to the expectations it was found that only one of the two polymorphs described in the literature (Bailey, Brown) was present. Using an interatomic function derived (Derissen, Smit) to approximate the crystallographic properties of this class of organic acids, we calculated the lattice energies of the two proposed polymorphs of terephthalic acid. These were found to be 41.02 and 39.99 kcal/mole for the polymorphs I and II, respectively. The heat of transition calculated (1.03 kcal/mole) is small enough to be overcome by an increase of the enthropy term and the polymorphic transition is realizable.</jats:p> Polymorphism and aging in terephthalic acid Crystal Research and Technology |
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10.1002/crat.2170200215 |
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Wiley, 1985 |
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Wiley, 1985 |
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0232-1300 1521-4079 |
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0232-1300 1521-4079 |
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English |
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1985 |
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Wiley |
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Crystal Research and Technology |
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49 |
| title |
Polymorphism and aging in terephthalic acid |
| title_unstemmed |
Polymorphism and aging in terephthalic acid |
| title_full |
Polymorphism and aging in terephthalic acid |
| title_fullStr |
Polymorphism and aging in terephthalic acid |
| title_full_unstemmed |
Polymorphism and aging in terephthalic acid |
| title_short |
Polymorphism and aging in terephthalic acid |
| title_sort |
polymorphism and aging in terephthalic acid |
| topic |
Condensed Matter Physics General Materials Science General Chemistry |
| url |
http://dx.doi.org/10.1002/crat.2170200215 |
| publishDate |
1985 |
| physical |
201-208 |
| description |
<jats:title>Abstract</jats:title><jats:p>The role of the polymorphic transformation was investigated by X‐Ray diffraction in the habit modification process of terephthalic acid reported earlier (Gaines, Myerson). Contrary to the expectations it was found that only one of the two polymorphs described in the literature (Bailey, Brown) was present. Using an interatomic function derived (Derissen, Smit) to approximate the crystallographic properties of this class of organic acids, we calculated the lattice energies of the two proposed polymorphs of terephthalic acid. These were found to be 41.02 and 39.99 kcal/mole for the polymorphs I and II, respectively. The heat of transition calculated (1.03 kcal/mole) is small enough to be overcome by an increase of the enthropy term and the polymorphic transition is realizable.</jats:p> |
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| author | Saska, Michael, Myerson, Allan S. |
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| description | <jats:title>Abstract</jats:title><jats:p>The role of the polymorphic transformation was investigated by X‐Ray diffraction in the habit modification process of terephthalic acid reported earlier (Gaines, Myerson). Contrary to the expectations it was found that only one of the two polymorphs described in the literature (Bailey, Brown) was present. Using an interatomic function derived (Derissen, Smit) to approximate the crystallographic properties of this class of organic acids, we calculated the lattice energies of the two proposed polymorphs of terephthalic acid. These were found to be 41.02 and 39.99 kcal/mole for the polymorphs I and II, respectively. The heat of transition calculated (1.03 kcal/mole) is small enough to be overcome by an increase of the enthropy term and the polymorphic transition is realizable.</jats:p> |
| doi_str_mv | 10.1002/crat.2170200215 |
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| format_dezwi2 | Article, E-Article |
| format_finc | Article, E-Article |
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| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi9jcmF0LjIxNzAyMDAyMTU |
| imprint | Wiley, 1985 |
| imprint_str_mv | Wiley, 1985 |
| institution | DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Rs1, DE-Pl11, DE-105, DE-14, DE-Ch1, DE-L229 |
| issn | 0232-1300, 1521-4079 |
| issn_str_mv | 0232-1300, 1521-4079 |
| language | English |
| last_indexed | 2024-03-01T14:56:44.622Z |
| match_str | saska1985polymorphismandaginginterephthalicacid |
| mega_collection | Wiley (CrossRef) |
| physical | 201-208 |
| publishDate | 1985 |
| publishDateSort | 1985 |
| publisher | Wiley |
| record_format | ai |
| recordtype | ai |
| series | Crystal Research and Technology |
| source_id | 49 |
| spelling | Saska, Michael Myerson, Allan S. 0232-1300 1521-4079 Wiley Condensed Matter Physics General Materials Science General Chemistry http://dx.doi.org/10.1002/crat.2170200215 <jats:title>Abstract</jats:title><jats:p>The role of the polymorphic transformation was investigated by X‐Ray diffraction in the habit modification process of terephthalic acid reported earlier (Gaines, Myerson). Contrary to the expectations it was found that only one of the two polymorphs described in the literature (Bailey, Brown) was present. Using an interatomic function derived (Derissen, Smit) to approximate the crystallographic properties of this class of organic acids, we calculated the lattice energies of the two proposed polymorphs of terephthalic acid. These were found to be 41.02 and 39.99 kcal/mole for the polymorphs I and II, respectively. The heat of transition calculated (1.03 kcal/mole) is small enough to be overcome by an increase of the enthropy term and the polymorphic transition is realizable.</jats:p> Polymorphism and aging in terephthalic acid Crystal Research and Technology |
| spellingShingle | Saska, Michael, Myerson, Allan S., Crystal Research and Technology, Polymorphism and aging in terephthalic acid, Condensed Matter Physics, General Materials Science, General Chemistry |
| title | Polymorphism and aging in terephthalic acid |
| title_full | Polymorphism and aging in terephthalic acid |
| title_fullStr | Polymorphism and aging in terephthalic acid |
| title_full_unstemmed | Polymorphism and aging in terephthalic acid |
| title_short | Polymorphism and aging in terephthalic acid |
| title_sort | polymorphism and aging in terephthalic acid |
| title_unstemmed | Polymorphism and aging in terephthalic acid |
| topic | Condensed Matter Physics, General Materials Science, General Chemistry |
| url | http://dx.doi.org/10.1002/crat.2170200215 |