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1,2,3-Triazabutadiene. XII. Abhängigkeit der 13C-15N-Kopplungskonstanten von der Z/E-Isomerie der 1-Phenyl-3-[3-ethylbenzthiazolinyliden-(2)]-triazene und 1-Phenyl-1-ethyl-3-[3-ethylbenzthiazolinyliden-(2)]-triazenium- tetrafluoroborate

✍ Scribed by Prof. Dr. E. Fanghänel; S. Simova; Dr. habil. R. Radeglia

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
352 KB
Volume
323
Category
Article
ISSN
1615-4150

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✦ Synopsis

1,2,3‐Triazabutadienes. XII. Dependence of the ^13^C‐ ^15^N Coupling Constants on the Z/E‐Isomerism of the 1‐Phenyl‐3‐[3‐ethylbenzthiazolinyden‐(2)]‐triazenes and 1‐Phenyl‐1‐ethyl‐3‐[3‐ethylbenzthiazolinyliden‐(2)]‐triazenium‐tetrafluoroborates

^13^C‐ and ^15^N spectra have been measured for the ^15^N‐labelled triazene 1 and triazenium salt 2. The ^13^C‐^15^N coupling constants are discussed in the light of the Z/E‐isomerism of the compounds. A significant nitrogen lone pair effect of the Z/E isomers on the magnitude of the coupling constant ^1^J(^15^N~1~^13^C~1~·) was observed and discussed.

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✍ Dipl.-Chem. S. Simova; Dr. habil. R. Radeglia; Prof. Dr. E. Fanghänel 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 548 KB

**1,2,3‐Triazabutadienes. XV. Substituent Effects on the Nitrogen‐15 and the Carbon‐13 Chemical Shifts of Triazabutadienes and Azobenzenes** Nitrogen‐15 and carbon‐13 chemical shifts are reported for ^15^N‐enriched p‐substituted triazenes **1**, triazenium salts **2** and azobenzenes **3**. Linear