83 research outputs found

    (Carbonato-κ2 O,O′)bis­(di-2-pyridyl­amine-κ2 N,N′)cobalt(III) bromide

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    In the title compound, [Co(CO3)(C10H9N3)2]Br, a distorted octa­hedral coordination of the CoIII atom is completed by four N atoms of the two chelating di-2-pyridyl­amine ligands and two O atoms of the chelating carbonate anion. The di-2-pyridyl­amine ligands are nonplanar and the dihedral angles between the 2-pyridyl groups are 29.11 (9) and 37.15 (12)°. The coordination cation, which has approximate C 2 symmetry, is connected to the bromide ion via an N—H⋯Br− hydrogen bond. The ionic pair thus formed is further assembled into a dimer via N—H⋯O inter­actions about an inversion centre. A set of weaker C—H⋯O and C—H⋯Br− inter­actions connect the dimers into a three-dimensional network

    Bis(2-hydroxy­imino­methyl-6-methoxy­phenolato-κ2 O 1,N)nickel(II)

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    The Ni atom in the title compound, [Ni(C8H8NO3)2], lies on a center of inversion in a square-planar coordination enviroment. The hydroxyl group of one anion forms a short hydrogen bond to the metal-coordinated O atom of the other anion

    Modifying alkylzinc reactivity with 2,2 '-dipyridylamide : activation of tBu-Zn bonds for para-alkylation of benzophenone

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    Undercover agent: Masquerading as a simple donor-acceptor complex (1), sodium amide substoichiometrically activates tBuZn for the challenging 1,6-addition of a tert-butyl group to benzophenone. In contrast, the nonactivated tBuZn is ineffectual
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