Pseudopolymorph: Retain this widely accepted term

Crystal Growth and Design

Volumn 6, Issue 1, 2006, Pages 2-4

  Nangia, Ashwini ^a  

^a UNIVERSITY OF HYDERABAD   (India)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 31144469641     PISSN: 15287483     EISSN: None     Source Type: Journal    
DOI: 10.1021/cg050343e     Document Type: Short Survey

References (22)

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2. Desiraju, G. R. Counterpoint: What's in a name? Cryst. Growth Des. 2004, 4, 1089.
3. Bernstein, J. And another comment on pseudopolymorphism. Cryst. Growth Des. 2005, 5, 661.
4. Byrn, S. R.; Pfeiffer, R. R.; Stowell, J. G. Solid-state Chemistry of Drugs, 2nd ed.; SSCI Inc., West Lafayette, IN, 1999.
5. Nangia, A. Nomenclature in crystal engineering. In Encyclopedia of Supramolecular Chemistry; Atwood, J. L.; Steed, J. W., Eds.; Marcel Dekker: New York, 2004; Vol. 2, pp 967-972.
6. McCrone, W. C. Polymorphism. In Physics and Chemistry of the Organic Solid State; Fox, D.; Labes, M. M.; Weissberger, A., Eds.; Wiley-Interscience: New York, 1965; Vol. 2, pp 725-767.
7. Threlfall, T. Analysis of organic polymorphs. Analyst 1995, 120, 2435.
8. Bernstein, J. Polymorphism in Molecular Crystals; Oxford University Press: Oxford, 2002.
9. (a) Bilton, C.; Howard, J. A. K.; Madhavi, N. N. L.; Nangia, A.; Desiraju, G. R.; Allen, F. H.; Wilson, C. C. When is a polymorph not a polymorph? Helical trimer O-H⋯O synthons in trans-1,4- diethynylcyclohexane-1,4-diol. Chem. Commun. 1999, 1675.
10. (b) Kumar, V. S. S.; Addlagatta, A.; Nangia, A.; Robinson, W. T.; Broder, C. K.; Mondal, R.; Evans, I. R.; Howard, J. A. K.; Allen, F. H. 4,4-Diphenyl-2,5-cyclohexadienone: Four polymorphs and nineteen crystallographically independent molecular conformations. Angew. Chem., Int. Ed. 2002, 41, 3848.
11. Rouhi, A. M. Crystallization: The right stuff. Chem. Eng. News, February 24, 2003, p 32.
12. Full text of the judgment in the United States Court of Appeals for the Federal Court may be downloaded from http://fedcir.gov/opinions/03-1285.pdf.
13. (a) Mondal, R.; Howard, J. A. K.; Banerjee, R.; Desiraju, G. R. Gauche and staggered forms of diethylamine in solvates of 1,5-dichloro-cis-9,10- diethynyl-9,10-dihydroanthracene-9,10-diol. A case of conformational pseudopolymorphism? Chem. Commun. 2004, 644.
14. (b) Ashmore, J.; Bishop, R.; Craig, D. C.; Scudder, M. L. Comparison of the X-ray crystal structures of concomitant pseudodimorphs formed between a diquinoline host and d-chloroform guest. Mendeleev Commun. 2003, 13, 144.
15. (c) Yoshizawa, K.; Toyota, S.; Toda, F.; Chatziefthimiou, S.; Giastas, P.; Mavridis, I. M.; Kato, M. Control of differential inclusion complexation in the solid state by seed crystals. Angew. Chem., Int. Ed. 2005, 44, 5097.
16. (d) Tanaka, K.; Wada, S.; Caira, M. R. Solvent-mediated transformation of a 1:1 2,3-bis-fluoren-9-ylidene succinic acid-ethanol solvate to the 1:2 solvate. CrystEngComm 2005, 7, 592. The idea that pseudopolymorphs are very much like polymorphs, expressed in these early papers, will hopefully get strengthened soon.
17. Almarsson, Ö.; Zaworotko, M. J. Crystal engineering of the composition of pharmaceutical phases. Do pharmaceutical co-crystals represent a new path to improved medicines? Chem. Commun. 2004, 1889.
18. Rogers, R. D. Introduction: Polymorphism in crystals. Cryst. Growth Des. 2003, 3, 867. "The most often used term for such compounds appears to be pseudopolymorphs, yet it is not clear if this conveys the scientific meaning it should. As the number of researchers increases in these important fields, care must be taken to provide the community with unambiguous directions on terminology that provides a ready understanding, but also scientific accuracy."
19. Plass, K. E.; Kim, K.; Matzger, A. J. Two-dimensional crystallization: Self-assembly, pseudopolymorphism, and symmetry-independent molecules. J. Am. Chem. Soc. 2004, 126, 9042.
20. Nangia, A.; Desiraju, G. R. Pseudopolymorphism: Occurrences of hydrogen bonding organic solvents in molecular crystals. Chem. Commun. 1999, 605.
21. Dunitz, J. D. Thoughts on crystals as supermolecules. In The Crystal as a Supramolecular Entity. Perspectives in Supramolecular Chemistry; Desiraju, G. R., Ed.; Wiley: Chichester, 1996; Vol. 2, pp 1-30.
22. Hughes, D. S.; Hursthouse, M. B.; Lancaster, R. W.; Tavener, S.; Threlfall, T. L. Over one hundred solvates of sulfathiazole. Chem. Commun. 2001, 603.