CPK Atomic Models, H-Bond Spacer Accessory

CPK Atomic Models, H-Bond Spacer Accessory

For use with the Hydrogen H-Bond, Hook Type (67-6726). One or more of these spacers can be put on over the hook of the 67-6726 to increase the bond distance by 0.2Å for each spacer used. Color: White.

Item# Description U.S. List Price Quantity
67-7096 CPK® Atomic Models, H-Bond Spacer
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For use with the Hydrogen H-Bond, Hook Type (67-6726).  One or more of these spacers can be put on over the hook of the 67-6726 to increase the bond distance by 0.2Å for each spacer used. Color: White.

  • Hold atoms together with great tenacity. A force of 5 to 7 kg is required to separate them. This force is readily furnished by the levering blade of the 67-7120 Construction Tool.
  • Permit distortions of bond angles to vary up to ±8° with negligible loss in bond strength.
  • Develop sufficient rotational friction to assure that large, extended side chains, often attached by a single bond, will remain indefinitely in proper steric orientation. 
  • Allow bond distances to be shortened or lengthened. 

Assembling or Taking Apart CPK Atomic Models is Easy

Assembly 
A Connector Link is placed in the well on the end of the handle of the 67-7120 Construction Tool. The Connector Link is then pressed into the female socket of the atom. The second atom is simply pressed onto the first with a slight twist, and the bond is made.

Taking Apart 
To remove a Connector Link, the forked end of the 67-7120 Construction Tool is slipped around the center groove of the link, and the tool is pried upward.

The atoms are held together with great tenacity. A force of 5 to 7 kg is required to separate them. This force is readily furnished by the levering blade of the 67-7120 Construction Tool.

The marked superiority of the CPK® Atomic Models derives largely from Dr. Koltun’s Connector Links. His analysis of the engineering problems involved led him to combine new plastic materials with innovative link designs which satisfy four critical requirements simultaneously.

Since bond distances and angles for particular atoms are known to vary even in similar structures, two special links, in addition to the standard link, are provided to increase or decrease the normal bond distance by +0.08Å or -0.05Å.

A special ‘gluing’ link is also available for permanently connecting atoms at standard bond distances.

The various link types are color-coded to aid identification.

Specifications67-7096
Bond Length Increase0.2
ColorWhite
Level 5Purine, Pyrimidine, Fatty Acids and Derivatives, Phosphoglycerides, Enzyme Cofactors
Scale Metric1.25