PolySacDb

A Database of Polysachharide 3D structures

 
By A. Sarkar & S. Pérez
 
 
 

Polysaccharides For Experts

Cellulose I triacetate

 

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Diffraction Diagram

 

Fig.1 X-ray diffraction diagram of CTA I. Fibre axis is vertical.

*Permission Pending for Diffraction Diagrams

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Structures are best viewed using PyMol & Sybyl

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  Cellulose I triacetate

Linkage :       beta 1-4     

 

Space Group :       orthogonal P21

 

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) =   23.63

b (Å) =   6.27

c (Å) =   10.43

 

 

Helix Type :      

The two chains pack with parallel polarity and the two-fold screw axes coincide with the chain axes

 

Method(s) Used For Structure Determination :      

X-ray diffraction and stereochemical model analysis

 

Link to the Abstract :      
 
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TXW-48CWDH4-J5&_user=10&_coverDate=01%2F31%2F1978&_rdoc=1&_fmt=high&_orig=search&_origin=search&_sort=d&_docanchor=&view=c&_searchStrId=1620778597&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=66c67f73020655db31b79c96be82524e&searchtype=a

 

Reference :      

Molecular and crystal structure of cellulose triacetate I: A parallel chain structure
Stipanovic, A.J. and Sarko, A., Polymer 1978, 19(1), 3-8

 

 

Download Structure

Unit          cellulose-triacetate-I_expanded

 

 

 

 

 
   
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