Mononuclear gallium complexes with the redox-active dmp-bian ligand (dmp-bian is 1,2-bis[(2,6-dimethylphenyl)imino]acenaphthene): synthesis and reactions with alkynes

Journal Article · Fri Feb 15 04:00:00 EST 2019 · Russian Chemical Bulletin

DOI:https://doi.org/10.1007/S11172-019-2383-9· OSTI ID:22943294

Bazyakina, N. L.; Fedushkin, I. L.; Piskunov, A. V.; Druzhkov, N. O.; Cherkasov, A. V. ^[1]

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1. Russian Academy of Sciences, G. A. Razuvaev Institute of Organometallic Chemistry (Russian Federation)

The direct reduction of 1,2-bis[(2,6-dimethylphenyl)imino]acenaphthene (dmp-bian (1)) with gallium metal in toluene affords the solvent-free bis-ligand complex [(dmp-bian){sub 2}Ga] (2), in which two diimine ligands are in different oxidation states (radical-anionic and dianionic). The addition of phenylacethylene to the Ga–N–C moiety of the dianionic ligand of compound 2 gives the complex [(dmp-bian)Ga(HC=CPh)(dmp-bian)] (3), in which new Ga–C and C–C bonds are formed. The reaction of 2 with hex-1-yne produces the gallium dialkynyl complex [(dmp-bian)Ga(C≡C–Bu){sub 2}] (4), with the metal atom bonded to the dmp-bian radical anion. Paramagnetic compounds 2–4 were characterized by ESR spectroscopy and X-ray diffraction. The known compound dmp-bian was structurally characterized for the first time.

• OSTI ID: 22943294
• Journal Information: Russian Chemical Bulletin, Journal Name: Russian Chemical Bulletin Journal Issue: 2 Vol. 68; ISSN RCBUEY; ISSN 1066-5285
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ACENAPHTHENE
ALKYNES
ANIONS
ELECTRON SPIN RESONANCE
GALLIUM
GALLIUM COMPLEXES
LIGANDS
OXIDATION
PARAMAGNETISM
RADICALS
SPECTROSCOPY
SYNTHESIS
TOLUENE
X-RAY DIFFRACTION