TY - JOUR
T1 - Five-coordinate β-ketoiminate derivatives of the (N3-macrocycle)nickel(II) fragment (N3-macrocycle = 2,4,4-trimethyl-1,5,9-triazacyclododec-1-ene and its 9-methyl derivative)
AU - Santana, M. Dolores
AU - Rufete, Antonio
AU - García, Gabriel
AU - López, Gregorio
AU - Casabó, Jaume
AU - Cabrero, Araceli
AU - Molins, Elies
AU - Miravitlles, Carles
PY - 1997/1/1
Y1 - 1997/1/1
N2 - The hydroxo complexes [{Ni(N3-macrocycle)(μ-OH)}2](ClO4)2 (N3-macrocycle = 2,4,4-trimethyl1,5,9-triazacyclododec-1-ene (N3-mc) and 2,4,4,9-tetramethyl-1,5,9-triazacyclododec-1-ene (9-Me-N3-mc)) react with the appropriate β-ketoimine to give five-coordinate nickel(II) complexes of the type [Ni(N3-macrocycle) (C6H5COCHC(NR)CH3)](ClO4). The complexes have been studied by spectroscopic (IR, UV-vis, 1H NMR and NOE) and thermal methods. An X-ray diffraction study carried out with the complex [Ni(9-Me-N3-mc){C6H5COCHC(NC6H 5)CH3}](ClO4) has established that the Ni atom presents a square pyramidal coordination and is displaced 0.325(1) Å out of the basal plane towards the apical N1 atom. © 1997 Elsevier Science Ltd.
AB - The hydroxo complexes [{Ni(N3-macrocycle)(μ-OH)}2](ClO4)2 (N3-macrocycle = 2,4,4-trimethyl1,5,9-triazacyclododec-1-ene (N3-mc) and 2,4,4,9-tetramethyl-1,5,9-triazacyclododec-1-ene (9-Me-N3-mc)) react with the appropriate β-ketoimine to give five-coordinate nickel(II) complexes of the type [Ni(N3-macrocycle) (C6H5COCHC(NR)CH3)](ClO4). The complexes have been studied by spectroscopic (IR, UV-vis, 1H NMR and NOE) and thermal methods. An X-ray diffraction study carried out with the complex [Ni(9-Me-N3-mc){C6H5COCHC(NC6H 5)CH3}](ClO4) has established that the Ni atom presents a square pyramidal coordination and is displaced 0.325(1) Å out of the basal plane towards the apical N1 atom. © 1997 Elsevier Science Ltd.
U2 - 10.1016/S0277-5387(97)00164-2
DO - 10.1016/S0277-5387(97)00164-2
M3 - Article
SN - 0277-5387
VL - 16
SP - 3713
EP - 3721
JO - Polyhedron
JF - Polyhedron
IS - 21
ER -