[IR, Raman, 1 H-NMR spectra and acidity constants of the cytostatic Hadacidin and its mono alkali salts].
نویسندگان
چکیده
Hadacidin 2 und seine Monoalkalisalze 3 wurden nach Literaturangaben dargestellt. Das nach 1. c. 1 gewonnene Produkt muß jedoch durch Extraktion mit siedendem Äther und nachfolgende Umfällung mit Chloroform/Petroläther (1 : 4) aus Acetonlösung gereinigt werden. Die IR-Spektren wurden mit Infrarotspektrometern IR-10 (4000 — 300 c m 1 , KBr-Preßlinge) und IR-11 (700 — 33 c m 1 , Nujolaufschlämmungen zwischen Polyäthylenfenstern) der Fa. Beckman Instruments gemessen. Für die Tieftemperaturspektren (Aceton-d6-Lösung, 4000 — 2500 cm""1) wurde ein Spektrometer IR-12 mit Tieftemperaturküvette Modell VLT-2 der Fa. RIIC verwandt. Die Temperatur wurde mit einem Eisen-Konstantan-Thermoelement bestimmt. Die R a m a n Spektren wurden mit einem R a m a n Spektrometer PH 1 mit Photonenzähler Typ C P H 100/PN 20 der Fa. Coderg aufgenommen. Als Lichtquelle diente ein He/Ne-Laser-Modell 125 der Fa. Spectra Physics. Temperatur und Druck wurden mit einem Meßgerät Typ RC 100 der Fa. Coderg bestimmt.
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ورودعنوان ژورنال:
- Zeitschrift fur Naturforschung. Teil B. Anorganische Chemie, organische Chemie, Biochemie, Biophysik, Biologie
دوره 27 12 شماره
صفحات -
تاریخ انتشار 1972