Effects of Electron Donors on the Photodecomposition of Menadione in Aqueous Solution. IV. Charge Transfer Absorption Bands of the Complexes between Menadione and either Caffeine or Ethyl p-Aminobenzoate
スポンサーリンク
概要
- 論文の詳細を見る
In previous papers, it was reported that menadione formed complexes with various electron donrs in aqueous systems, and that the driving force of the complex formation was due to the charge transfer force. However, the charge transfer absorption bands of the complexes were not recognized completely in the above systems. In the present paper, the charge transfer absorption bands of the complexes between menadione and either caffeine or ethyl p-aminobenzoate were determined in chloroform, and energies of the charge transfer absorption bands were compared with those between better electron donors and menadione, or between better electron acceptors and either caffeine or ethyl p-aminobenzoate. Consequently, it was concluded that the indistinct charge tranfser absorption bands of the complexes between menadione and either caffeine or ethyl p-aminobenzoate in aqueous system are responsible for lower electronic affinity of menadione, for higher ionization potentials of caffeine or ethyl p-aminobenzoate and for lower solubilities of caffeine or ethyl p-aminobenzoate.
- 公益社団法人日本薬学会の論文
- 1968-04-25
著者
-
畑 俊一
Research Laboratories, Chugai Pharmaceutical Co., Ltd.
-
畑 俊一
Research Laboratories Chugai Pharmaceutical Co. Ltd.
関連論文
- Disodium N-(2-Carboxyphenyl)-4-chloroanthranilate : Enhancement of Immune Response in Mice
- Quantum Chemical Considerations on the Stability of Aqueous Solution of an Electron Acceptor such as Menadione
- The Relationship between the Hydroxylated Position of Aromatic Compounds by Monooxygenase and Various Electronic Reactivity Indices
- Effect of Solvents on the Charge Transfer Absorption Bands of the Complexes between Various Electron Donors and Menadione
- Charge Transfer Absorption Bands of the Complexes between Various Electron Donors and Menadione in Aqueous Solution
- Effects of Electron Donors on the Photodecomposition of Menadione in Aqueous Solution. IV. Charge Transfer Absorption Bands of the Complexes between Menadione and either Caffeine or Ethyl p-Aminobenzoate
- Effects of electron donors on the photodecomposition of menadione in aqueous solution.-1,2-
- Measurements of Extra-Weak Chemiluminescence
- Resonance Transfer of Excitation Energy between Non-steroidal Anti-inflammatory Drugs and Aromatic Amino Acids
- Effects of Electron Donors on the Photodecomposition of Menadione in Aqueous Solution. III. The Relation between the Structure of the Complex in Electronic Aspect and the Rate of Stabilization
- Effects of Electron Donors on the Photodecomposition of Menadione in Aqueous Solution. II. Stability of Menadione in Aqueous Solution of Electron Donors.
- Effects of Electron Donors on the Photodecomposition of Menadione in Aqueous Solution. I. The Interaction between Electron Donors and Menadione in Aqueous Solution.