“…conducted on tetrazolium complexes and cobaltate compounds (Matulis et al, 2003;Kawamura et al, 1997;Rizzi et al, 2003;Marzotto et al, 1999;Fukui et al, 1992;Kubo et al, 1979), and a few structures of tetrazolium complexes have been determined (Matulis et al, 2003;Kawamura et al, 1997). Kawamura et al (1997) studied the crystal structure of a complex composed of a 2,3,5-triphenyltetrazolium cation and a dichloro(1,3,5-triphenylformazanato) cobaltate (II) anion (hereafter designated as complex Type I), with the magnetic properties of Co(II) by means of a superconducting quantum-interference device (SQUID) and electron spin resonance (ESR) spectroscopy.…”