J. R. Allan, A. Paton, K. Turvey
May 15, 1989
Citations
0
Influential Citations
20
Citations
Journal
Thermochimica Acta
Abstract
Abstract Thermogravimetric and differential thermal analysis data are reported for 5,10,15,20-tetraphenyl-21 H ,23 H -porphine metal(II) complexes where the metal is cobalt, copper and zinc. Similar data are also reported for 5,10,15,20-tetrakis(4-methoxyphenyl)-21 H ,23 H -porphine cobalt(II). For the above compounds the electrical conductivities have been measured. There is evidence for space-charge limited conduction, and conductivities at room temperature under an applied field of 1×10 4 V m −1 are all within a factor of two either side of 2×l0 −8 Ω −1 m −1 . Activation energies for forming free carriers have been measured from the temperature dependence of the electrical conductivities.