The title linear trinuclear complexes, [Fe3L2(CH3COO)2] (L=bis-(salicylidene)-1,3-diaminopropane (salpd) (1) and L=bis-(salicylidene)-1,4-diaminobutane (salbd) (2) were synthesized simply using solvothermal method in methanol and were characterized by X-ray single crystal diffraction. [Fe3L2(CH3COO)2] (1) was obtained using salicylaldehyde, 1,3-diaminopropane and Fe(CH3COO)2·4H2O via the above method with monoclinic crystal system and space group of P21/c, and lattice parameters of a=0.945 0(8) nm, b=1.037 0(8) nm, c=1.830 5(14) nm, β= 94.357(16)°. The [Fe3L2(CH3COO)2] (2) was obtained using1,4-diaminobutane instead of 1,3-diaminopropane while keeping the other conditions the same as that for synthesis of [Fe3L2(CH3COO)2] (1). The [Fe3L2(CH3COO)2] (2) was in monoclinic crystal system and space group of P21/c, and lattice parameters of a=0.919 0(5) nm, b=1.675 6(9) nm, c=1.270 0(7) nm, β=95.126(11)°. CCDC: 754930, 1; 754931, 2.
The reaction of N-n-Bu4MnO4 with Mn(Oac) 2 · 4H2O and butenoic acid in nonaqueous solvents leads to the formation of the complex [Mn3O(O2CCH = CHCH3) 6(py) 3] ClO4 · py (1). The crystal structure was determined.The complex crystallizes in hexagonal, space group P63/m, unit cell parameters, a = 1. 2456(1)nm, b = 1. 2456(1) nm, c = 1. 8741(1) nm, V=2. 5181(3) nm3, Z =2, and final R1 =0. 0565, wR2 =0. 1465. Variable tem-perature solid tate magnetic susceptibility study shows that the complex [Mn3O(O2CCH = CHCH3)6(py)3] ClO4 (2) has an antiferromagnetic exchange interaction.
A new mixed-valence trinuclear oxo-centered manganese complex Mn3O(O2CCC l3)6(py)2(H2O) was prepared by the reaction of NnBu4MnO4 with Mn(OAc)2·4H2O, t richloroacetic acid and pyridine in absolute EtOH. The crystal structure was det ermined. The complex crystallizes in monoclinic, space group P21/c, unit cell pa rameters, a=14.951(1), b=20.791(2), c=17.882(1),á=?=90a=102.67(1)
The ligand ttd(ttd=1,4,8,9-Tetraaza-triphenylene-2,3-dicarbonitrile) and a novel spin crossover complex [Fe(ttd)2(NCS)2]·H2O were synthesized, and charac terized by elemental analysis, IR, MS, and UV-vis spectroscopy. The temperature dependence of magnetic susceptibility shows that there are a little break betwe en 150～190K and an unusual step transition with a 50K width between 190～240K. Compared with the other complexes with the resemble structure, it can be found t hat the influence of ligand is very notable.
