✦ LIBER ✦
Halochrome Molekeln. Synthese und acidobasisches Verhalten substituierter 3′,6′-Bis (dimethylamino)-spiro [5H-imidazo [2, 1-α]-isoindolin-5,9′-xanthene]
✍ Scribed by Sigmund Gunzenhauser; Bruno Hellrung; Heinz Balli
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- German
- Weight
- 708 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Halochromic Molecules. Synthesis and Acidobasic Behaviour of Substituted 3′,6′‐Bis(dimethylamino)‐spiro [5__H__‐imidazo [2,1‐α]isoindolin‐5,9′‐xanthenes]
Substituted 3′,6′‐Bis (dimethylamino)‐spiro [5__H__‐imidazo [2, 1‐α]isoindolin‐5,9′‐xanthenes] are prepared and their ^1^H‐NMR. spectra are discussed. An investigation of the complex protonation equilibria is made by stopped flow kinetic and spectrophotometric methods. p__K__ values are determined and the results are discussed.