Iron(II)- and cobalt(II) complexes with tridentate bis(imino)pyridine nitrogen ligands bearing chiral bulky aliphatic and aromatic substituents:: Crystal structure of [CoCl2{2,6-bis[R-(+)-(bornylimino)methyl]pyridine}]

Iron(II) and cobalt(II) complexes (7-15) based on new aldimine 2,6-bis[(imino)methyl]pyridine (1,2,4,6) and ketimine (2,6-bis[(imino)ethyl]pyridine (3,5) ligands with bulky chiral aliphatic or aromatic terminal groups have been prepared and characterized by H-1 NMR, C-13 NMR, IR-, mass spectroscopy (EI), and elemental analysis. The complex [CoCl2(BBoMP)](.1)/(2) CHCl3 (13) (BBoMP: 2,6-bisi(R-(+)-(bornylimino)-methyl pyridine) crystallizes in monoclinic space group P2(1) with cell dimensions: a = 7.6603(11) angstrom, b = 28.3153(14) angstrom, c = 13.537(2) angstrom, V = 2908.1(6) angstrom(3), Z = 4. The coordination sphere around Co is distorted trigonal bipyramidal.