Four new 1D coordination po
lymers have been constructed from [LCu
IIM
II] nodes connected by various spacers
the dianion of pyrazo
le-3,5-dicarboxy
lic acid (pzdc
2−), the trianion of trimesic acid (trim
3−), the tetracyanonicke
late(II) anion ([Ni(CN)
4]
2−), and the dicyanamide anion (dca
−) [M
II = Mn
II, Co
II, and L
2− is the dianion of the Schiff-base resu
lting from the 2:1 condensation of 3-methoxysa
licy
la
ldehyde with 1,3-propanediamine, L
2− =
N,
N′-propy
lene-bis-(3-methoxysa
lyci
lideneiminato)]: [LCuMn(pzdc)(CH
3OH)(H
2O)]·H
2O (
1), [LCuMn(trim)
2/3(CH
3OH)
2/3(H
2O)
1/3]·0.66(H
2O)·0.66(CH
3OH) (
2), [LCuCo(dca)
2] (
3), and [LCu(CH
3OH)(H
2O)Mn(NC)
2Ni(CN)
2]·(H
2O)(CH
3CN) (
4). The fifth compound, [{CuL}K{LCu}{Ag(CN)
2}] (
5), was obtained by reacting [CuL] with K[Ag(CN)
2]. The magnetic investigation of compounds
1,
2, and
4 revea
ls antiferromagnetic Cu
II−Mn
II intranode interactions (
1,
J = −48.9 cm
−1;
2,
J = −64.7 cm
−1; and
4,
J = −60.4 cm
−1;
H = −
JSMnSCu), as we
ll as weak internodes antiferromagnetic interactions (for compounds
1 and
4). In the case of
2, a weak ferromagnetic internode interaction occurs through the spin po
larization mechanism.