Fundamantal studies on clinical chemistry-14-On some aspects in the colorimetries of steroidal compounds using p-nitro-phenylhydrazine-3-Light absorption of p-nitrophenylhydrazone in alkaline dimethylformamide
書誌事項
- タイトル別名
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- Fundamental Studies on Clinical Chemistry. XIV. On Some Aspects in the Colorimetries of Steroidal Compounds using p-Nitrophenylhydrazine. (3). Light Absorption of p-Nitrophenylhydrazone in Alkaline Dimethylformamide.
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Bathochromic and hyperchromic absorption of p-nitrophenylhydrazones in alkaline dimethylformamide (DMF), that was shown in the colorimetric procedures for some steroids, was studied using several model compounds in various solvents. The color was ascribed mainly to the formation of quinoidal anion (I). The solvent effects of DMF as a dipolar aprotic solvent was discussed from the point of view of the cationic solvation and the increase in activities of hydroxide anion added as well as carbanion (I) formed was regarded as responsible for the hyperchromic absorption. The bathochromic effect of DMF was explained to be shown as a probable result of shielding the anion (I) from the cationic field by the solute-solvent interaction.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 15 (9), 1315-1321, 1967
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390001204173545216
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- NII論文ID
- 110003620331
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- NII書誌ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- NDL書誌ID
- 8509210
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- PubMed
- 5583704
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可