A.N. Gusev, S Shulgin, E. Beyjyyev, G. Alexandrov, I. Eremenko, W. Linert:
"Anion-triggered coordination mode of the new chelating ligand 1,3-bis[5-(2-pyrimidinyl)-1,2,4-triazol-3-yl]propane";
Polyhedron, 85 (2015), S. 525 - 529.

Kurzfassung englisch:
The flexible ditopic ligand 1,3-bis[5-(2-pyrimidinyl)-1,2,4-triazol-3-yl]propane H2L displays remarka-ble versatility in the coordination mode depending on the counter anion. With copper(II) nitrate H2L acts as a tetradentate chelate forming a mononuclear complex. The reaction with copper(II) perchlorate gives a centrosymmetric dinuclear complex coordinating the deprotonated form of the ligand. Reaction with copper(II) chloride leads to a pentanuclear complex in which binuclear species are bridged by a CuCl2 fragment. All complexes were crystallographically characterized. Additionally, magnetic prop-erties of bi- and pentanuclear complexes were studied.

Cu(II) complex; 1,2,4-triazole; X-ray diffraction; magnetic properties

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