1994
DOI: 10.1002/ange.19941060830
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Donor‐stabilisiertes Aluminium(II)‐bromid

Abstract: 300 3 50 400 450 500 Abb. 2. Absorptionsspektren der Produkte, die sich intermediar bei der Bestrahlung von 1 bin entgastem Benzol bilden, aufgenommen 50 p. s nach dem Photolysepuls. Oben rechts ist der zeitliche Verlduf der Absorption (Osaillogrammspuren) bei 335 und 370 nm aufgezeichnet. 0. D. = optische Dichte. k/nm --j daR das Carben 2 b nicht ausschliel3lich durch intramolekulare H-Abstraktion, sondern auch durch Dimerisierung abreagiert, dargestellt, und es zeigt sich, daB 2b ungefahr so schnell zerfallt… Show more

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Cited by 24 publications
(7 citation statements)
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“…Although Al 2 Br 4 and Al 2 I 4 have been known as donorstabilised species [6,7] for more than a decade, donor-free Al 2 X 4 molecules have never been discussed, which is not surprising when experimental difficulties are considered. [7] Only AlCl 2 has been described under matrix and special synthesis conditions, [13] but these results have been discussed critically.…”
Section: Iic1 Al 2 F 4 Conformers and Dimer (Al 2 F 4 )mentioning
confidence: 96%
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“…Although Al 2 Br 4 and Al 2 I 4 have been known as donorstabilised species [6,7] for more than a decade, donor-free Al 2 X 4 molecules have never been discussed, which is not surprising when experimental difficulties are considered. [7] Only AlCl 2 has been described under matrix and special synthesis conditions, [13] but these results have been discussed critically.…”
Section: Iic1 Al 2 F 4 Conformers and Dimer (Al 2 F 4 )mentioning
confidence: 96%
“…Most remarkable are the results for the first molecules that contain a 2-electron-2-centre Mg-Mg or Zn-Zn bond, [1,2] which have been published as highlight articles. [3,4] Although theoretically Al II is isoelectronic with Mg I present in crystalline Mg 2 RЈ 2 species, [2] the corresponding Al 2 R 4 [R = CH(SiMe 3 ) 2 ] [5] and Al 2 X 4 ·2L (X = Cl, Br; L = ether or amine) [6,7] molecules that were presented about 20 years ago seem to be less interesting. However, as far as we know, neither Mg I nor Al II or Ga II monomeric radical species like · MgR, · MgX or · AlR 2 , · AlX 2 have been identified as crystalline materials.…”
Section: Introductionmentioning
confidence: 91%
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“…clusters is hindered by primary products containing strong Al-(PR 2 )-Al bridging bonds: Metastable primary solutions of AlCl or AlBr contain small amounts (about 1 %) of the thermodynamically favored AlCl 3 or AlBr 3 , respectively. [4] Through repeated insertion reactions of AlX molecules into the Al À X bonds of the AlX 3 molecules, species like Al 2 X 4, [23,24] Al 3 X 5 , Al 4 X 6 , and Al 5 X 7 can be formed (Scheme 1b). [25] In principle, too, longer chain-like subhalides may be present (Scheme 1c).…”
Section: Formation Of Metalloid Al Nmentioning
confidence: 99%
“…Herstellungsbedingt enthält jede AlCl‐Lösung einige Prozent AlCl 3 8. Aus AlCl und AlCl 3 wird 1 in einer donorreichen Lösung über [Al 2 Cl 4 L 2 ] ( 5 )16 und [Al 5 Br 7 L 5 ] ( 6 )13, 17 bereits bei −78 °C gebildet.…”
Section: Methodsunclassified