PolySacDb

A Database of Polysachharide 3D structures

 
By A. Sarkar & S. Pérez
 
 
 

Polysaccharides For Experts

Chitosan (high T)

 

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Diffraction Diagram

 

Fig.1 Electron diffraction diagram of a single crystal of Chitosan.

*Permission Pending for Diffraction Diagrams

(Please right-click & view the image if it appears distorted here)

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Structures are best viewed using PyMol & Sybyl

(Please download the structure and view in a stand-alone viewer if the structure appears distorted in Jmol)

 

  Chitosan (high T)

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) =   8.07

b (Å) =   8.44

c (Å) =   10.34

 

γ (°) =   90.00

 

Helix Type :      

two antiparallel chains per unit cell and no water of crystallization

 

Method(s) Used For Structure Determination :      

electron diffraction and stereochemical data

 

Link to the Abstract :      
 
http://pubs.acs.org/doi/abs/10.1021/ma00104a015

 

Reference :      

Molecular and Crystal Structure of a High-Temperature Polymorph of Chitosan from Electron Diffraction Data
Mazeau, K., Winter, W.T. and Chanzy, H., Macromolecules 1994, 27, 7606-7612

 

 

Download Structure

Unit          chitosanHT_expanded

 

 

 

 

 
   
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