Raman spectroscopic studies on the interaction between divalent counterion and polyion
β Scribed by Shinobu Koda; Hiroyasu Nomura; Mitsuru Nagasawa
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 513 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0301-4622
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π SIMILAR VOLUMES
The volume changes associated with the interaction between tetra-n-propylammonium, propylammonium and butylammonium ions with the polyethylenesulphonate ion (PES) have been determined from density measurements. The excess ultrasonic absorption of solutions of PES and polystyrenesulphonic (PSS) acids
## Abstract We have shown previously that the Nβmethylpridyl group vibrations of waterβsoluble porphyrins, M(TMpyβP4), are shifted to lower frequencies (0.5β2.6 cm^β1^) as a result of coulombic interaction between the N^+^βCH~3~ group of M(TMpyβP4) and the PO~2~ group of a nucleic acid. We have now