General method for calculating helical parameters of polymer chains from bond lengths, bond angles, and internal-rotation angles

✍ Scribed by Hiromu Sugeta; Tatsuo Miyazawa

• Publisher: Wiley (John Wiley & Sons)
• Year: 1967
• Tongue: English
• Weight: 241 KB
• Volume: 5
• Category: Article
• ISSN: 0006-3525
• DOI: 10.1002/bip.1967.360050708

✦ Synopsis

Helical C O I I ~O ~~~O M

of infinite polymer chsins may be described by the helical pa-rameter~~, d and e (the translation along the helix axis and the angle of rotation about the axis per repeat unit), pr (the distance of tthe ith atom from the axis), d i j and eii (the translation along the axis and the angle of rotation, respectively, on pawing from the ith atom to the jth). A general method has been worked out for calculating all those helical parameters from the bond lengths, bond angles, and inted-rotation angles. The positions of the msin chain and side chain atoms with respect to the mix may alm be calculated.

All the equations are applicable to any helical polymer chaii and are readily programmed for electronic computers. A method is SLSO presented for calculating the partid derivativea of helical parameters with m c t to molecular pammeten.