794458-05-2Relevant articles and documents
Chromium and tungsten complexes with a paramagnetic gallaimidazole ligand
Baranov, E. V.,Fedushkin, I. L.,Piskunov, A. V.,Skatova, A. A.,Sokolov, V. G.,Yang, X.-J.,Zhao, Y.
, p. 1537 - 1543 (2020)
The reaction of digallane [(dpp-bian)Ga—Ga(dpp-bian)] (1) (dpp-bian is 1,2-bis[(2,6-di-isopropylphenyl)imino]acenaphthene dianion) with chromium or tungsten hexacarbonyl affords the complexes [(dpp-bian)Ga—Cr(CO)5] (2) and [(dpp-bian)Ga—W(CO)5] (3), respectively, containing the neutral radical [(dpp-bian)Ga:]. In both cases, temperature-dependent solvation of the gallium center was observed in a tetrahydrofuran solution. The recrystallization of compound 2 from pyridine gave the new complex [(dpp-bian)(Py)Ga—Cr(CO)5] (4). New compounds 2–4 were characterized by EPR and IR spectroscopy and elemental analysis. The molecular structures of complexes 2–4 were established by single-crystal X-ray diffraction.
Novel yttrium and zirconium catalysts featuring reduced Ar-BIANH2 ligands for olefin hydroamination (Ar-BIANH2 = bis-arylaminoacenaphthylene)
Cimino, Alessandro,Moscatelli, Filippo,Ferretti, Francesco,Ragaini, Fabio,Germain, Stéphane,Hannedouche, Jér?me,Schulz, Emmanuelle,Luconi, Lapo,Rossin, Andrea,Giambastiani, Giuliano
, p. 10285 - 10293 (2016/12/07)
The novel class of bis-arylaminoacenaphthylenes (Ar-BIANH2) was employed for the preparation of zirconium and yttrium complexes to be used as catalysts for cyclohydroamination of a number of primary and secondary aminoalkenes. The complex [(2,6