Two Types of Intramolecular Addition of an Al−N Multiple-Bonded Monomer
LAlNAr‘ Arising from the Reaction of LAl with N3Ar‘ (L = HC[(CMe)(NAr)]2, Ar‘
= 2,6-Ar2C6H3, Ar = 2,6-iPr2C6H3)

Zhu, Hongping; Chai, Jianfang; Chandrasekhar, Vadapalli; Roesky, Herbert W.; Magull, Jörg; Vidovic, Denis; Schmidt, Hans-Georg; Noltemeyer, Mathias; Power, Philip P.; Merrill, William A.

doi:10.1021/ja0475712.s003

ja0475712_si_003.pdf (77.54 kB)

Two Types of Intramolecular Addition of an Al−N Multiple-Bonded Monomer LAlNAr‘ Arising from the Reaction of LAl with N₃Ar‘ (L = HC[(CMe)(NAr)]₂, Ar‘ = 2,6-Ar₂C₆H₃, Ar = 2,6-iPr₂C₆H₃)

journal contribution

posted on 2004-08-11, 00:00 authored by Hongping Zhu, Jianfang Chai, Vadapalli Chandrasekhar, Herbert W. Roesky, Jörg Magull, Denis Vidovic, Hans-Georg Schmidt, Mathias Noltemeyer, Philip P. Power, William A. Merrill

The reaction of β-diketiminated aluminum(I) monomer LAl with a large bulky azide N₃Ar‘ (L = HC(CMeNAr)₂, Ar‘ = 2,6-Ar₂C₆H₃, Ar = 2,6-iPr₂C₆H₃) in the temperature range from −78 °C to room temperature affords two different isomers 2 and 3, which have been characterized by spectroscopic and X-ray structural analyses, as well as elemental analysis. The variable-temperature ¹H NMR kinetic studies of this reaction indicate the existence of the monomer LAlNAr‘ (1) at low temperature and the thermal stability of the compounds increases in the order of 1 < 2 < 3.