PolySacDb

Chitosan (anhydrous)

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Fig.1 Fiber X-ray diffraction pattern of the chitosan anhydrous polymorphic form recorded on an imaging plate. The fiber axis is vertical, and the calibration line is the d = 0.2319 nm line of NaF.

*Permission Pending for Diffraction Diagrams

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Chitosan (anhydrous)

Linkage : beta 1-4

Space Group : orthorhombic P212121

Unit Cell Dimensions (a, b, c in Å and α, β, γ in °)

(No values are displayed if no information is available or the value is zero)

a (Å) = 8.28 - b (Å) = 8.62 - c (Å) = 10.43 - γ (°) = 90.00

Helix Type : extended 2-fold helix

Method(s) Used For Structure Determination : X-ray diffraction

Link to the Abstract : http://pubs.acs.org/doi/abs/10.1021/ma00104a014

Reference :

Molecular and Crystal Structure of the Anhydrous Form of Chitosan
Yui, T., Imada, K., Okuyama, K., Obata, Y.,Suzuki, K., Ogawa,K., Macromolecules 1994, 87, 7601 - 7605

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Unit chitosanB-anhyd_unit

chitosan-anhyd_expanded

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Chitosan (anhydrous)