Chemistry of diazadiene type ligands with extra coordination groups. Prospects of reactivity

•Diacetyl-based diimines can form neutral, anion-radical, dianion as well as mono- and bis-enamide forms.•Additional functional groups can cause a formation of di-, three- or polynuclear complex.•Coordination abilities of diimine ligands with extra functional groups are discussed in detail. N=C–C=N...

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Published inCoordination chemistry reviews Vol. 417; p. 213353
Main Authors Nikolaevskaya, E.N., Druzhkov, N.O., Syroeshkin, M.A., Egorov, M.P.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.08.2020
Subjects
Complexes
Coordination abilities
Diazadiene
Methyl group deprotonation
Diazadiene
(DAD•)
Coordination abilities
DAD
EPR
IR
Complexes
NMR
Methyl group deprotonation
CV
UV–Vis
(DAD)2
(DAD)0
EFG-DAD
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Summary:•Diacetyl-based diimines can form neutral, anion-radical, dianion as well as mono- and bis-enamide forms.•Additional functional groups can cause a formation of di-, three- or polynuclear complex.•Coordination abilities of diimine ligands with extra functional groups are discussed in detail. N=C–C=N backbone ligands have been extensively studied for s-, p-, d- and f-block elements over the last several decades. Their diverse bonding modes and redox active properties have attracted a great deal attention and rendered them as one of the privilege ligands in coordination chemistry and catalysis. The review is focused on features of coordination behavior of DAD extended with different functional groups. The basic coordination modes, including reactions with various nucleophilic reagents, have been analyzed in detail. Synthetic and electrochemical aspects are also included.
ISSN:0010-8545
1873-3840
DOI:10.1016/j.ccr.2020.213353