𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Elektronenstruktur und physikalisch-chemische Eigenschaften von Azo-Verbindungen. Teil IX: Die Absorptionsspektren der Benzologen des Azobenzols, des Benzalanilins und des Stilbens

✍ Scribed by J. Schulze; F. Gerson; J. N. Murrell; E. Heilbronner


Publisher
John Wiley and Sons
Year
1961
Tongue
German
Weight
731 KB
Volume
44
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis


The absorption spectra of azobenzene, benzalaniline, stilbene, and of their benzologues RNN‐R′, RCHNR′, RCHCHR′ (R, R′ = phenyl, 1‐naphthyl, 2‐naphthyl), have been compared from a qualitative point of view.


📜 SIMILAR VOLUMES


Elektronenstruktur und physikalisch-chem
✍ F. Gerson; E. Heilbronner; A. van Veen; B. M. Wepster 📂 Article 📅 1960 🏛 John Wiley and Sons 🌐 German ⚖ 629 KB

Trans-Azobenzol (I), eine schwache Base, geht in Medien geniigend hoher Protonenaktivitat in ihre konjugate Saure iiber, die iiblicherweise als 111 formuliert wird, wahrend analog die konjugate Saure des cis-Azobenzols (11) als IV zu formulieren ware. In einer Reihe von Veroffentlichungen der letzt

Elektronenstruktur und physikalisch-chem
✍ F. Gerson 📂 Article 📅 1963 🏛 John Wiley and Sons 🌐 German ⚖ 721 KB

## Abstract The absorption spectra of __m__‐dimethylaminophenyl‐azo‐azulene in weakly acid solutions have been recorded and the possible structures of its first conjugate acid discussed. In contrast to its __p__‐isomer, the compound is protonated mostly on the amino nitrogen, although a measurable

Physikalisch-chemische Eigenschaften und
✍ F. Gerson; E. Heilbronner 📂 Article 📅 1962 🏛 John Wiley and Sons 🌐 German ⚖ 510 KB

## Abstract The absorption spectrum of __p__,__p__′‐bis‐dimethylamino‐azobenzene has been measured in solvents of different acidities. The bathochromic shift of the long‐wave transition associated with protonation of the azo link falls in line with the corresponding shifts, observed for a series of

Elektronenstruktur und physikalisch-chem
✍ F. Gerson; E. Heilbronner 📂 Article 📅 1958 🏛 John Wiley and Sons 🌐 German ⚖ 573 KB

Obschon bekannt ist, dass das in der HucKEL'schen Naherung 2, berechnete LCAO-MO-Model1 fur n-Elektronensysteme, die sich auch uber Heteroatome erstrecken, Resultate liefert, die vor allem in quantitativer oder in manchen Fallen sogar in semiquantitativer Hinsicht nur wenig befriedigend ausfallen, s

Physikalisch-chemische Eigenschaften und
✍ F. Gerson; E. Heilbronner 📂 Article 📅 1962 🏛 John Wiley and Sons 🌐 German ⚖ 517 KB

## Abstract The absorption spectra and relative basicities of __p__‐dimethylamino‐azobenzene and of ten of its __p__′‐ or __m__′‐substituted derivatives have been determined. The bathochromic shift of the long‐wave π → π\*‐transition on protonation of the azo link and the p__K__′~1~ values for this

Elektronenstruktur und physikalisch-chem
✍ F. Gerson; J. Schulze; E. Heilbronner 📂 Article 📅 1960 🏛 John Wiley and Sons 🌐 German ⚖ 421 KB

## Abstract The spectroscopic properties and the basicity of p‐trimethylammonium‐phenylazo‐azulene support the conclusions drawn in a previous paper concerning the influence of −M and +M active substituents on the spectrum of phenyl‐azo‐azulene. They also verify the structure previously assigned to