Instituto de Ciencia Molecular (ICMol), Parque Científico, Universidad de Valencia, C/Catedrático José Beltrán, 2, 46980 Paterna, Valencia, Spain.
Inorg Chem. 2012 Feb 20;51(4):2359-65. doi: 10.1021/ic202361p. Epub 2012 Feb 1.
The use of the recently prepared polynitrile ligand tcnopr3OH(-) ((NC)(2)CC(OCH(2)CH(2)CH(2)OH)C(CN)(2)) with different salts of Fe(II), Co(II), and Ni(II) has led to a very rare example of linkage isomerism in a coordination chain. These pairs of linkage isomers can be formulated as [M(tcnopr3OH-κN,κO)(2)(H(2)O)(2)]; M = Fe (1), Co (3), and Ni(5) and [M(tcnopr3OH-κN,κN')(2)(H(2)O)(2)]; M = Fe (2), Co (4), and Ni (6). Compounds 1-2, 3-4, and 5-6 are three pairs of linkage isomers since they present the same formula and chain structure and they only differ in the connectivity of the polynitrile ligand bridging the metal ions in the chain: through a N and an O atom (1κN:2κO-isomer) or through two N atoms (1κN:2κN'-isomer). The magnetic properties show, as expected, very similar behaviors for both isomers.
最近制备的多腈配体 tcnopr3OH(-) ((NC)(2)CC(OCH(2)CH(2)CH(2)OH)C(CN)(2)) 与不同的 Fe(II)、Co(II) 和 Ni(II) 盐的使用导致了配位链中非常罕见的键合异构体现象。这些键合异构体对可以表示为 [M(tcnopr3OH-κN,κO)(2)(H(2)O)(2)]; M = Fe (1)、Co (3) 和 Ni(5) 和 [M(tcnopr3OH-κN,κN')(2)(H(2)O)(2)]; M = Fe (2)、Co (4) 和 Ni (6)。化合物 1-2、3-4 和 5-6 是三对键合异构体，因为它们具有相同的化学式和链结构，只是链中连接金属离子的多腈配体的连接方式不同：通过一个 N 原子和一个 O 原子 (1κN:2κO-异构体) 或通过两个 N 原子 (1κN:2κN'-异构体)。磁性性质表明，两种异构体的行为非常相似，这是意料之中的。
