Direct Synthesis and Characterization of New Copper(II) and Zinc(II) 5-R-Tetrazolato Complexes [R = Me, Ph, 4-Py] with Ethylenediamine and DMSO as Coligands

作者：Mosalkova Anastasiya P; Voitekhovich Sergei V^*; Lyakhov Alexander S; Ivashkevich Ludmila S; Gaponik Pavel N; Ivashkevich Oleg A

来源：Zeitschrift fur Anorganische und Allgemeine Chemie, 2012, 638(1): 103-110.

DOI：10.1002/zaac.201100407

• N ligands
• Copper
• Zinc
• Tetrazole
• Direct synthesis

Three novel 5-R-tetrazolato complexes (R = Me, Ph, 4-Py), namely [Zn2(MeCN4)4(DMSO)2] (1), [Cu2(PhCN4)4(en)2]center dot 2DMSO (2), and [Cu(4-PyCN4)2(DMSO)2]center dot 4DMSO (3), were isolated as unexpected products under attempts to prepare heterometallic tetrazolates using a direct synthesis strategy in the Cu0-ZnO-en-RCN4H-DMSO system (en = ethylenediamine). The prepared compounds were characterized by elemental, single-crystal X-ray, and thermal analyses, and IR spectroscopy. Variation of the 5-substituent of the tetrazole ring causes different composition of complexes 13 and diverse coordination modes of 5-R-tetrazolato ligands. Complex 1 is a 3D coordination polymer due to N1, N4-bridging of 5-methyltetrazolato anions. Complex 2, with en as a coligand, has a dinuclear structure with two copper atoms linked together by two 5-phenyltetrazolato ligands by tetrazole N2, N3 bridges. Complex 3 represents a 2D coordination polymer, formed due to 5-(4-pyridyl)tetrazolato bridges between adjacent copper atoms (with the tetrazole and pyridine rings nitrogen atoms as coordination centers). DMSO molecules, included in all the compounds, are solvate and/or coordinated ones.

• 出版日期2012-1