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Crystal structure of pantoprazole sodium sesquihydrate Form I, C16H14F2N3O4SNa(H2O)1.5

Published online by Cambridge University Press:  20 January 2020

Diana Gonzalez ,
Joseph T. Golab ,
James A. Kaduk Open the ORCID record for James A. Kaduk [Opens in a new window] ,
Amy M. Gindhart  and
Thomas N. Blanton Open the ORCID record for Thomas N. Blanton [Opens in a new window]
Diana Gonzalez
Affiliation:
Illinois Mathematics and Science Academy, 1500 Sullivan Rd., Aurora, Illinois60506-1000, USA
Joseph T. Golab
Affiliation:
Illinois Mathematics and Science Academy, 1500 Sullivan Rd., Aurora, Illinois60506-1000, USA
James A. Kaduk*
Affiliation:
Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, Illinois60616, USA North Central College, 131 S. Loomis St., Naperville, Illinois60540, USA
Amy M. Gindhart
Affiliation:
ICDD, 12 Campus Blvd., Newtown Square, Pennsylvania19073-3273, USA
Thomas N. Blanton
Affiliation:
ICDD, 12 Campus Blvd., Newtown Square, Pennsylvania19073-3273, USA
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

The crystal structure of pantoprazole sodium sesquihydrate has been solved and refined using synchrotron X-ray powder diffraction data and optimized using density functional techniques. Pantoprazole sodium sesquihydrate crystallizes in space group Pbca (#61) with a = 33.4862(6), b = 17.29311(10), c = 13.55953(10) Å, V = 7852.06(14) Å3, and Z = 16. The crystal structure is characterized by layers parallel to the bc-plane. One layer contains the Na coordination spheres. The two independent sodium ions are trigonal bipyramidal and octahedral. The NaO3N2 and NaO4N2 coordination spheres share an edge to form pairs. The sodium bond valence sums are 1.17 and 1.15. The difluoromethyl groups are probably disordered. Two water molecules act as hydrogen bond donors to pyridine nitrogen atoms and sulfoxide oxygen atoms. The third water molecule participates in bifurcated hydrogen bonds, but one of its hydrogen atoms does not participate in hydrogen bonds. The powder pattern is included in the Powder Diffraction File™ as entry 00-065-1424.

Keywords

pantoprazole sodium sesquihydrateProtonixpowder diffractionRietveld refinementdensity functional theory
Type
New Diffraction Data
Information
Powder Diffraction , Volume 35 , Issue 1 , March 2020 , pp. 53 - 60
Copyright
Copyright © International Centre for Diffraction Data 2020

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