Facile synthesis of Cu(II) complexes of monocondensed N,N,N donor Schiff base ligands: Crystal structure, spectroscopic and magnetic properties

Polyhedron ◽  
2006 ◽  
Vol 25 (11) ◽  
pp. 2241-2253 ◽  
Author(s):  
Shouvik Chattopadhyay ◽  
Mau Sinha Ray ◽  
Michael G.B. Drew ◽  
Albert Figuerola ◽  
Carmen Diaz ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Schiff Base ◽  
Facile Synthesis ◽  
Schiff Base Ligands

Crystal Structure and Magnetic Properties of a New Hetero-Dinuclear CuIIMnII Schiff Base Complex

2003 ◽  
Vol 58 (4) ◽  
pp. 271-277 ◽  
Author(s):  
Y. Elerman ◽  
A. Elmali ◽  
C. T. Zeyrek ◽  
I. Svoboda ◽  
H. Fuess
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Schiff Base ◽  
Schiff Base Complex ◽  
Antiferromagnetic Interaction ◽  
Monoclinic Space Group ◽  
Distorted Tetrahedron ◽  
Molar Magnetic Susceptibility ◽  
Schiff Base Ligands ◽  
Oxygen Atoms

Mn[Cu(L)(O2CMe)2] · H2O (L = N,N’-bis(2-hydroxy-3-methoxybenzylidene)-1,3-diaminopropane) was synthesized and the crystal structure determined. (C23H26CuMnN2O8).H2O, monoclinic, space group P21/c, a = 12.017(3), b = 8.217(3), c = 24.786(4) Å , β = 92.10(2)°, V = 2446(1) Å3, Z = 4. The crystal structure consists of ordered dinuclear units with CuII and MnII ions bridged by two oxygen atoms of the Schiff base ligand. The CuII coordination sphere is a slightly distorted square-plane formed by the N2O2 donor set of the Schiff base ligands. The average Cu-O and Cu-N distances are 1.920(1) and 1.957(4) Å , respectively. The coordination around the MnII ion is a distorted tetrahedron with the donor oxygen atoms of the Schiff base ligands and oxygen atoms of the acetate anions. The Cu ··· Mn separation is 3.327(4) Å . There is also one non-coordinating water molecule in the crystal structure. The χ and χT versus T plots, χ being the molar magnetic susceptibility per CuIIMnII unit and T the temperature, has been measured in the 4.9 - 301 K temperature range. The values of the interaction parameters are J = −28.3 cm−1, gMn = 2.01, gCu = 2.07. This indicates an intramolecular antiferromagnetic interaction between CuII and MnII ions.

Synthesis, crystal structure and magnetic characterization of two Mn(III) chains with Schiff-base ligands

2013 ◽  
Vol 1033 ◽  
pp. 8-13 ◽  
Author(s):  
Cong-Ming Zhang ◽  
Xi-Feng Gao ◽  
Mei Zhu ◽  
Yun-Gai Li ◽  
Qing-Lun Wang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Schiff Base Ligands ◽  
Magnetic Characterization
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