Transition Metal and Lanthanide Complexes
with Triaminoguanidine Ligands as Building Blocks for
Magnetic Molecules and Coordination Polymers
A. Zharkouskaya, D. Plaul, A. Ion, E. T. Spielberg,
J. Bauer, A. Buchholz, A. Roth, W. Plass
Friedrich-Schiller-Universität Jena, Germany
Institut für Anorganische und Analytische Chemie
[Ni3(L’)2(pmdeta)2]
-1
J = -30 cm
[Ni3L
OMe
+
(tptz)3]
+
[Ni3L(bipy)3]
-1
J = -24 cm
-1
J=-30 cm
N
N
N
II
Ni
pmdeta
II
Ni
Et3N
bipy
+
[Cu3L(bipy)3]
-1
J = -316 cm
N
N
N
II
Ni
tptz
R2
tptz
Aggregation of trinuclear units
R1
R3
R3
OH
N
Br
OH
II
Ni
tptz
Bu4NOH
N
N
2
R
II
Cu
Et3N
bipy
N
H
NH
R1
N
R1
[Ni5(L )2(tptz)4]
HO
R3
R2
Tris-(2-hydroxybenzyliden)triaminoguanidin (H5L)
II
Fe
Et3N
dtbc
III
6
2-
[Fe L2(dtbc)6(H2O)2]
Lanthanide-complexes
[LnL2(MeOH)2]X
III
III
III
Ln=Pr , Sm , Eu ,
III
III
III
Tb , Dy , Ho
X=NO3 , Cl
III
II
Fe
Co
Et3N
Et3N
Na[Cr(bipy)tptz
III
(C2O4)2]
Gd
[Co3L
OMe
+
(bcpa)3]
O
O
N
H
+
[Fe3L(L”)3(CH3OH)3]
-1
J = -10 cm
N
N
bcpa
different substituent R
2
Formation of polymers
(10,3)-anetworks
Interwoven
networks
Porous polymer