A new zinc(II) complex containing nitronyl nitroxide radicals: Synthesis, crystal structure, and magnetic properties

作者：Liu G^*; Liu B; Cheng J T

来源：Russian Journal of Coordination Chemistry, 2013, 39(6): 471-474.

DOI：10.1134/S1070328413060079

A new one-dimensional dicyanamide bridged zinc(II) complex containing nitronyl nitroxide radicals [Zn(Hfac)(2)(NIT-1'-MeBzIm)] (NIT-1'-MeBzIm = 2-{2'-[(l'-methyl)benzimidazolyl]}-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide, Hfac = hexafluoroacetylacetonate) has been prepared and structurally characterized by single-crystal X-ray diffraction. The complex crystallizes in monoclinic, space group P2(1)/c, Z = 4. Crystal data: C25H21F12N4O6Zn, Mr = 766.83, a = 12.1812(13) , b = 16.8770(18) , c = 15.5230(16) , beta = 98.009(2)A degrees, V = 3160.1(6) (3), rho (c) = 1.612 g/cm(3), mu(MoK (alpha)) = 0.893 mm(-1), F(000) = 1540, R = 0.0925 and wR = 0.2652 for 5875 observed reflections with I > 2 sigma(I). The X-ray analysis reveals that the zinc(II) ion is six-coordinated with a distorted octahedral geometry. These units develop as 1D species by intermolecular hydrogen bonds. Magnetic investigation indicates the existence of weak intermolecular interactions is antiferromagnetic with J = -1.35 cm(-1), where the spin Hamitonian is defined as H = -2I pound (i,j) J (i,j) S (i) S within the complex.

• 出版日期2013-6
• 单位重庆工商大学