Rubidium and Cesium Enediamide Complexes Derived fromBulky 1,4-Diazadienes
2020
The first rubidium
and cesium enediamide complexes based on bulky
1,4-diaza-1,3-diene ligands (DADs) have been prepared by metalation
of either 1,4-bis(2,6-diisopropylphenyl)-1,4-diaza-1,3-butadiene (1, = H2DADDipp) or 1,4-bis(2,6-diisopropylphenyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene
(2, = Me2DADDipp) with an excess
of Rb or Cs metals in coordinating solvents such as tetrahydrofuran
(THF) or 1,2-dimethoxyethane (DME). All new complexes were fully characterized
by spectroscopic and analytical methods as well as single-crystal
X-ray diffraction studies.
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