Solvent effect on protonation equilibria of L-ornithine and L-glutamic acid
| Main Authors: | M. Saratchandra Babu, G. Nageswara Rao, Karri V. Ramana, M.S. Prasada Rao |
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| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2000
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5868697 |
Daftar Isi:
- Bio-Inorganic Chemistry Laboratories, School of Chemistry, Andhra University, Visakhapatnam-530 003, India Manuscript received 28 October 1999, accepted 28 March 2000 An electrometric investigation of protonation equilibria of L-ornithine and L-glutamic acid in aqua-N,N'-dimethyllormamide media of varying composition (0-60%, v/v) has been made at different concentrations of the amino acid at 303 K and an ionic strength of 0.16 mol dm-3. The best lit chemical models arc arrived at based on firm statistical grounds employing crystallographic R factor, \(\chi\)2, skewness and kurtosis. The variation in the protonation constants with the dielectric constant of the medium is attributed to the electrostatic and non-electrostatic forces.