Groth's original concomitant polymorphs revisited

Michal Rafilovich; Joel Bernstein; Robin K. Harris; David C. Apperley; Panagiotis G. Karamertzanis; Sarah L. Price

doi:10.1021/cg050151j

Groth's original concomitant polymorphs revisited

Michal Rafilovich, Joel Bernstein, Robin K. Harris, David C. Apperley, Panagiotis G. Karamertzanis, Sarah L. Price

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

The search for the third concomitant polymorphic form γ of 1,3-bis(m-nitrophenyl)urea that was described in 1899, but not reported in more recent papers, has revealed a new polymorphic form, δ, and a monohydrate form of the material in addition to its already known α and β forms. It is suggested that the monohydrate is actually the literature-reported γ form. Both new forms have been characterized and compared to α and β forms by a variety of methods including thermal methods, FT-IR, and cross polarization/magic angle spinning (CPMAS) NMR spectroscopy, single-crystal X-ray structure determination, and lattice energy calculations.

Original language	English
Pages (from-to)	2197-2209
Number of pages	13
Journal	Crystal Growth and Design
Volume	5
Issue number	6
DOIs	https://doi.org/10.1021/cg050151j
State	Published - 1 Nov 2005

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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abstract = "The search for the third concomitant polymorphic form γ of 1,3-bis(m-nitrophenyl)urea that was described in 1899, but not reported in more recent papers, has revealed a new polymorphic form, δ, and a monohydrate form of the material in addition to its already known α and β forms. It is suggested that the monohydrate is actually the literature-reported γ form. Both new forms have been characterized and compared to α and β forms by a variety of methods including thermal methods, FT-IR, and cross polarization/magic angle spinning (CPMAS) NMR spectroscopy, single-crystal X-ray structure determination, and lattice energy calculations.",

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AU - Harris, Robin K.

AU - Apperley, David C.

AU - Karamertzanis, Panagiotis G.

AU - Price, Sarah L.

PY - 2005/11/1

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N2 - The search for the third concomitant polymorphic form γ of 1,3-bis(m-nitrophenyl)urea that was described in 1899, but not reported in more recent papers, has revealed a new polymorphic form, δ, and a monohydrate form of the material in addition to its already known α and β forms. It is suggested that the monohydrate is actually the literature-reported γ form. Both new forms have been characterized and compared to α and β forms by a variety of methods including thermal methods, FT-IR, and cross polarization/magic angle spinning (CPMAS) NMR spectroscopy, single-crystal X-ray structure determination, and lattice energy calculations.

AB - The search for the third concomitant polymorphic form γ of 1,3-bis(m-nitrophenyl)urea that was described in 1899, but not reported in more recent papers, has revealed a new polymorphic form, δ, and a monohydrate form of the material in addition to its already known α and β forms. It is suggested that the monohydrate is actually the literature-reported γ form. Both new forms have been characterized and compared to α and β forms by a variety of methods including thermal methods, FT-IR, and cross polarization/magic angle spinning (CPMAS) NMR spectroscopy, single-crystal X-ray structure determination, and lattice energy calculations.

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Groth's original concomitant polymorphs revisited

Abstract

ASJC Scopus subject areas

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