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Volumn 106, Issue 3, 2002, Pages 544-550

Color changes caused by conformational polymorphism: Optical-crystallography, single-crystal spectroscopy, and computational chemistry

Author keywords

[No Author keywords available]

Indexed keywords

CONFORMATIONAL POLYMORPHISMS;

EID: 0037165441     PISSN: 10895639     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp013019c     Document Type: Article
Times cited : (91)

References (36)
  • 4
    • 0000560385 scopus 로고
    • The anti-AIDS drag Norvir presented a dramatic case of a disappearing polymorph [see Health Professional Letter - Abbott (July 28, 1998)], The original polymorph "disappeared" after a more stable polymorph began to crystallize and Norvir capsules produced with the new polymorph failed the dissolution specification
    • Dunitz, J.D.; Bernstein, J. Acc. Chem. Res. 1995, 28, 193-200. The anti-AIDS drag Norvir presented a dramatic case of a disappearing polymorph [see Health Professional Letter - Abbott (July 28, 1998), http://www.fda.gov/medwatch/safety/1998/norvir.htm]. The original polymorph "disappeared" after a more stable polymorph began to crystallize and Norvir capsules produced with the new polymorph failed the dissolution specification.
    • (1995) Acc. Chem. Res. , vol.28 , pp. 193-200
    • Dunitz, J.D.1    Bernstein, J.2
  • 17
    • 0011091273 scopus 로고    scopus 로고
    • The Cambridge Crystallographic Data Centre (CCDC), 12 Union Road, Cambridge CB2 1EZ, England
    • The Cambridge Crystallographic Data Centre (CCDC), 12 Union Road, Cambridge CB2 1EZ, England.
  • 18
    • 0001459354 scopus 로고    scopus 로고
    • Oxford: Pergamon Press
    • Despite numerous reports of highly polymorphic systems [see, for example, Kuhnert-Brandstatter, M. Thermomicroscopy in the Analysis of Pharmaceuticals; Oxford: Pergamon Press, 1971], systems with many polymorphs for which crystal structures have been solved at the same temperature are more rare. Sulfathiazole has five polymorphs of known crystal structures (Hughes, D.S.; Hursthouse, B.; Threlfall, R.; Tavener, S. Acta Crystallogr. 1999, C55, 1831).
    • (1971) Thermomicroscopy in the Analysis of Pharmaceuticals
    • Kuhnert-Brandstatter, M.1
  • 19
    • 0001459354 scopus 로고    scopus 로고
    • Despite numerous reports of highly polymorphic systems [see, for example, Kuhnert-Brandstatter, M. Thermomicroscopy in the Analysis of Pharmaceuticals; Oxford: Pergamon Press, 1971], systems with many polymorphs for which crystal structures have been solved at the same temperature are more rare. Sulfathiazole has five polymorphs of known crystal structures (Hughes, D.S.; Hursthouse, B.; Threlfall, R.; Tavener, S. Acta Crystallogr. 1999, C55, 1831).
    • (1999) Acta Crystallogr. , vol.C55 , pp. 1831
    • Hughes, D.S.1    Hursthouse, B.2    Threlfall, R.3    Tavener, S.4
  • 20
    • 0001909634 scopus 로고
    • Conformational polymorphism
    • Desiraju, G.R., Ed.; Elsevier: Amsterdam
    • Bernstein, J. Conformational Polymorphism. In Organic Solid State Chemistry; Desiraju, G.R., Ed.; Elsevier: Amsterdam, 1987.
    • (1987) Organic Solid State Chemistry
    • Bernstein, J.1
  • 32
    • 0011136254 scopus 로고    scopus 로고
    • note
    • o (obtuse bisectrix).
  • 34
    • 0011139173 scopus 로고    scopus 로고
    • note
    • Oscillator strengths were not determined for crystal sections owing to large errors in the estimation of their thickness and slight absorption saturation observed with OP(101).
  • 35
    • 0011155143 scopus 로고    scopus 로고
    • note
    • To see this conclusion, translate the four ETDM vectors in the unit cell so that their origins coincide at (0, 0, 0). The end points of the ETDMs will now be symmetry-related in the form (x,y,z), (x,-y,z), (-x,-y,-z) and (-x,y,-z). The four ETDM end points define a rectangle. The monoclinic symmetry dictates that the rectangle is perpendicular to (010) and hence the four ETDMs project to a line through (010). Projection of the ETDM rectangle through other Miller planes ordinarily gives a parallelogram and is reduced to a line only by accident.
  • 36
    • 0011079543 scopus 로고
    • Visible and ultraviolet absorption by molecular crystals
    • Fox, D., Labes, M.M., Weissberger, A., Eds.; Interscience: New York
    • Craig, D.P. Visible and Ultraviolet Absorption by Molecular Crystals. In Physics and Chemistry of the Organic Solid State; Fox, D., Labes, M.M., Weissberger, A., Eds.; Interscience: New York, 1963.
    • (1963) Physics and Chemistry of the Organic Solid State
    • Craig, D.P.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.