The Crystal and Molecular Structure of a Polymorph and a Pseudo-Polymorph of Droperidol

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• 作者：Andris Actins ; Reinis Arajs ; Sergejs Belakovs ; Liana Orola and Mikelis Valdis Veidis
• 关键词：Droperidol ; Polymorph ; Pseudo ; polymorph ; Crystal structure ; Hemihydrate ; Hydrogen bonding
• 刊名：Journal of Chemical Crystallography
• 出版年：2008
• 出版时间：March, 2008
• 年：2008
• 卷：38
• 期：3
• 页码：169-174
• 全文大小：293.6 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Organometallic Chemistry
  Crystallography
  Physical Chemistry
  Inorganic Chemistry
  
• 出版者：Springer Netherlands
• ISSN：1572-8854

文摘

Abstract Crystals of two crystal modifications of droperidol: a hemihydrate (1) and the z polymorph (2), have been isolated and their structure determined using X-ray diffraction methods. Droperidol hemihydrate crystallized in the triclinic space group P ? 1, with unit cell parameters a = 6.2842(15), b = 10.1473(8), c = 16.1850(2) ?; α = 102.554(9); β = 91.917(14); γ = 99.316(12)°; V = 991.6(3) ?3, and Z = 2. The droperidol z polymorph crystallized in the monoclinic space group P2₁/c, with unit cell parameters a = 20.0406(8), b = 7.4955(4), c = 12.9733(5) ?; β = 98.089(2)°; V = 1929.39(15) ?3, and Z = 4. In 1 and 2 two molecules of droperidol are joined by two N–H···O hydrogen bonds. The structure of 1 shows a possible additional hydrogen bond linking the two droperidol molecules via the water molecule.