The invention describes a process for producing metal complexes of the general formula (2): [M
a
L
x
X
n
]Y
m
(2), where M is a metal from the group comprising Mn(II), Mn(III), Mn(IV), Fe(II), Fe(III) or Fe(IV), X is a coordinated compound selected from mono- bi- or tri-charged anions or neutral molecules which are able to coordinate with a metal mono- bi- or tri-dentate, Y represents a non-coordinated counter-ion which ensures charge equalization of the complex, L represents a ligand of the general formula (1) or the protonized or de-protonized form thereof, and a, x, n, m, R, R
1
, R
2
, R
3
and z have the meaning specified in claim
1.
Said process is characterized in that the reaction of a ligand of the formula (1) with an iron or manganese salt in a heterogeneous reaction is carried out in water, where the reaction is carried out in a temperature range of 35 to 50° C. and the pH value of the reaction mixture is from 1 to 3 after the addition of the iron or manganese salt.
该发明描述了一种制备通式(2)的
金属配合物的过程:[MaLxXn]Ym(2),其中M是来自包括Mn(II)、Mn(III)、Mn(IV)、Fe(II)、Fe(III)或Fe(IV)的
金属,X是一种配位化合物,选择从单、双或三价阴离子或能够与
金属单、双或三齿配位的中性分子中,Y代表非配位的反离子,保证配合物的电荷平衡,L代表通式(1)或其质子化或去质子化形式的
配体,a、x、n、m、R、R1、R2、R3和z的含义如权利要求书中所述。所述过程的特点在于,在
水中进行一种
配体的通式(1)与
铁或
锰盐的杂化反应,反应温度在35到50℃的范围内进行,加入
铁或
锰盐后,反应混合物的pH值为1到3。