PolySacDb

A Database of Polysachharide 3D structures

 
By A. Sarkar & S. Pérez
 
 
 

Polysaccharides For Experts

Cellulose II triacetate

 

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Diffraction Diagram

     

Fig.1 Diffraction diagrams used for the determination of the CTA II structure:

(a)X-ray fiber diagram.

(b)Electron-diffraction fiber diagram.

(c)Single-crystal electron-diffraction diagram.

*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

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  Cellulose II triacetate

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) =   24.68

b (Å) =   11.52

c (Å) =   10.54

 

γ (°) =   90.00

 

Helix Type :      

antiparallel pairs of parallel CTA II chains

 

Method(s) Used For Structure Determination :      

X-ray and electron diffraction

 

Link to the Abstract :      
 
http://pubs.acs.org/doi/abs/10.1021/ma60061a016

 

Reference :      

Three-Dimensional Crystalline Structure of Cellulose Triacetate II
E. Roche, H. Chanzy, M. Boudeulle, R. H. Marchessault, P. Sundararajan,Macromolecules 1978, 11(1), 86-94

 

 

Download Structure

Unit          cellulose-triacetate-II_expanded

 

 

 

 

 
   
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