Effect of the counter-anion on the structural and magnetic properties of a copper(II) complex with 2-[(bis(2-pyridylmethyl)amino)methyl]-4-methyl-6-(methylthio)phenol

Manzur, Jorge; Mora, Hector; Paredes-Garcı́a, Verónica; Vega, Andrés; Novak, Miguel A.

doi:10.1016/j.poly.2013.01.005

Cited by 2 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9 In recent years, a large number of reports have focused on the synthesis and magnetic properties of chloride-bridged, [10][11][12][13][14][15][16][17][18][19] azide-bridged [20][21][22][23][24][25] or alkoxy-bridged systems. [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] However, chloride-bridged octahedral-tetrahedral Cu(II) complexes have seldom been reported. [42][43][44] On the other hand, while magneto-structural correlations for azide-Cu(II) systems have been widely investigated, 45,46 those for the chloride-bridged Cu oct -Cl-Cu tet system and dicyanamide-bridged Cu 2 (μ 2 -O) 2 dinuclear systems are not well known.…”

Section: Introductionmentioning

confidence: 99%

Assembly of dinuclear copper(ii) secondary building units into polymeric complexes: crystal structures and magnetic properties

2014

View full text Add to dashboard Cite

Four Cu(II) complexes, the one-dimensional [Cu(HL 1 ) 2 (CuCl 4 )] n (1), {[Cu 2 (L 1 ) 2 (N(CN) 2 )(CH 3 OH)](ClO 4 )} n (2), dinuclear [Cu 2 (L 2 ) 2 Cl 2 ] (3), and two-dimensional layered [Cu 2 (L 2 ) 2 (N(CN) 2 ) 2 ] n (4) were synthesized by Cu(II) salts (CuCl 2 •2H 2 O or Cu(ClO 4 ) 2 •6H 2 O), alkanol bidentate ligands trans-2-(1-pyrazolyl)cyclohexanol (HL 1 ) or3,5-dimethyl-N-hydroxyethyl-pyrazolyl (HL 2 ) together with sodium dicyanamide. For complex 1, the bridging chlorine atoms of the tetrahedral [CuCl 4 ] 2− moieties are located at the Jahn-Teller axis of the elongated octahedral Cu(II), forming an alternate elongated-octahedral-tetrahedral Cu(II) chain complex.For complexes 2, 3 and 4, the alkyl oxygen atoms of the deprotonated ligands HL 1 and HL 2 bridge two Cu(II) ions, yielding a dinuclear Cu(II) unit [Cu 2 (L x ) 2 ] 2+ (x = 1, 2), and one-or two-dimensional complexes via bridging dicyanamide ligands. Complex 1 shows weak ferromagnetic coupling, whilst complexes 2-4 display strong antiferromagnetic coupling or are even nearly diamagnetic due to the large Cu-O-Cu bond angles.

show abstract