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Copper(II) and cadmium(II) isothiocyanate coordination polymers with 4,4'-bi-1,2,4-triazole

Evgeniy V Govor1, Andrey B Lysenko, Konstantin V Domasevitch

  • 1Inorganic Chemistry Department, Kiev University, Volodimirska Street 64, Kiev 01033, Ukraine.

Acta Crystallographica. Section C, Crystal Structure Communications
|March 7, 2008
PubMed

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Structural Isomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
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Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
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Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
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