Read e-book online B Boron Compounds: Boron and Chalcogens. Carboranes. Formula PDF

By Karl Beeker, Thomas Onak, Kurt Niedenzu, Ursula Hettwer

ISBN-10: 366206135X

ISBN-13: 9783662061350

ISBN-10: 3662061376

ISBN-13: 9783662061374

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Read or Download B Boron Compounds: Boron and Chalcogens. Carboranes. Formula Index for 1st Suppl. Vol. 1 to 3 PDF

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Extra resources for B Boron Compounds: Boron and Chalcogens. Carboranes. Formula Index for 1st Suppl. Vol. 1 to 3

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I. Tolpin, G. R. Wellum, F. C. Dohan, P. L. Kornblith, R. G. A. 103573). 1 Mit Sauerstoff Ternäre Systeme ° 8 2 3 • S03. Über das Vorliegen einer definierten Verbindung B20 3 · S03 im binären B20 3/S0 3System liegen widersprüchliche Angaben vor. Nach [1] soll sie bei mehrstündigem Erhitzen von B20 3 mit überschüssigem S03 im Einschlußrohr bei 115 bis 120°C entstehen. Jedoch geben Versuche des thermischen Abbaues von B20 3 · 2S0 3 (s. nachstehend) keinen Hinweis auf die Zwischenstufe B 20 3 · S03.

Durch Abbau von 1-S-BgHg (s. S. 18) mit flüssigem NH 3 und Behandeln mit [(CH3)4N] CI wird [(CH3)4N] [7-S-B eHg] gebildet, das sich nach sechsstündiger Behandlung in flüssigem NH 3 in das 4-lsomere umlagert [1]. Die Zusammensetzung kann massenspektroskopisch bestätigt werden. Bei [(C 2H sbNH] [SBeH g] wird der Molekülpeak m/e = 231 gefunden. Hauptpeak sind m/e = 130 und 132 entsprechend "B e'H lO 32S+ und "B e'H,034S+. Ein scharfer Peak (m/e=101) entspricht '2C 6'H,s'4N+. Im IRSpektrum werden (in Nujol) für [(C 2H sbNH] [4-S-B aHg] 27 Frequenzen zwischen 3450 und 402 cm-', für [(CH3)4N] [4-S-B aHg] 26 Frequenzen zwischen 2520 und 410 cm-' und für [(CH3)4N] [7-S-B aHg] 18 Frequenzen zwischen 2520 und 463 cm-' beobachtet (Einzelwerte und Intensitäten s.

J. Ramsay (J. Inorg. Nucl. Chem. 36 [1974] 950/1). E. Ricker (Z. Anorg. Allgern. Chem. 310 [1961] 123/41). 1 [2] J. Goubeau, Mit Halogen Cyclische Verbindungen Zur Nomenklatur s. -Werk, Bd. 22 "Borverbindungen" 4, 1975, S. 290/1, angewendete Bezeichnungsweise. Daneben werden auch weitere in der Literatur verwendete Namen angeführt.

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B Boron Compounds: Boron and Chalcogens. Carboranes. Formula Index for 1st Suppl. Vol. 1 to 3 by Karl Beeker, Thomas Onak, Kurt Niedenzu, Ursula Hettwer

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