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Crystal structure of citalopram hydrobromide, C20H22FN2OBr

Published online by Cambridge University Press:  29 April 2016

James A. Kaduk ,
Kai Zhong ,
Amy M. Gindhart  and
Thomas N. Blanton
James A. Kaduk*
Affiliation:
Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, Illinois 60616
Kai Zhong
Affiliation:
ICDD, 12 Campus Blvd., Newtown Square, Pennsylvania 19073-3273
Amy M. Gindhart
Affiliation:
ICDD, 12 Campus Blvd., Newtown Square, Pennsylvania 19073-3273
Thomas N. Blanton
Affiliation:
ICDD, 12 Campus Blvd., Newtown Square, Pennsylvania 19073-3273
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

The crystal structure of citalopram hydrobromide has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional theory techniques. Citalopram hydrobromide crystallizes in space group P21/c (#14) with a = 10.766 45(6), b = 33.070 86(16), c = 10.892 85(5) Å, β = 90.8518(3)°, V = 3878.03(4) Å3, and Z = 8. N–H⋯Br hydrogen bonds are important to the structure, but the crystal energy is dominated by van der Waals attraction. The powder pattern was submitted to International Centre for Diffraction Data for inclusion in the Powder Diffraction File™.

Keywords

citalopram hydrobromideCelexaCipramilpowder diffractionRietveld refinementdensity functional theory
Type
Technical Articles
Information
Powder Diffraction , Volume 31 , Issue 3 , September 2016 , pp. 176 - 184
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Copyright
Copyright © International Centre for Diffraction Data 2016 

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