Crystal structure

Ligand (biochemistry)

Catalysis

Medicinal chemistry

Receptor

Alkylation

Organic chemistry

Inorganic chemistry

Chelation

Chemistry

Ring size

Pyridine

Ring (chemistry)

Tetrazole

Biochemistry

Copper

Stereochemistry

Crystallography

Zeitschrift für anorganische und allgemeine Chemie

A novel N , N ′‐alkylene‐bridged bis(5‐pyridyltetrazole) ligand, namely 2,5‐bis[5‐(2‐pyridyl)‐tetrazol‐2‐yl]‐2,5‐dimethylhexane (bpt), was prepared by regioselective N 2 ‐alkylation of 5‐(2‐pyridyl)tetrazole with 2,5‐dimethylhexane‐2,5‐diol in perchloric acid. The ligand bpt was found to react with copper(II) chloride to give the dinuclear complex [Cu 2 (bpt)Cl 4 ]. According to single‐crystal X‐ray analysis of the complex, bpt acts as a chelating ligand, coordinated by the metal through the tetrazole ring N 4 and the pyridine ring nitrogen atoms. In the complex molecule, two copper atoms are linked by double chlorido bridges, and ligand bpt plays the role of the third bridge. The temperature‐dependent magnetic susceptibility measurements of the complex revealed that the copper(II) ions were weakly antiferromagnetically coupled showing a coupling constant J of –1.04 cm –1 .

Selective Synthesis and Complexation of Novel <i>N</i>,<i>N</i>′‐Alkylene‐Bridged Bis(5‐pyridyltetrazole)