Mostafa, M.F., S. A. M. M. A.,
"MAGNETIC SUSCEPTIBILITY STUDIES OF ((CH//3)//2CHNH//3)//2CuCl//4.",
Physica Status Solidi (A) Applied Research, vol. 41, no. 1, pp. 295-297, 1977.
AbstractThe magnetic susceptibility of ((CH//3)//2CHNH//3)//2CuCl//4 is measured in the temperature range 340 to 78 K. The susceptibility changes abruptly near the thermochromic temperature of 56 degree C. The compound obeys the Curie-Weiss behavior at high temperatures, but seems to behave like a two-dimensional ferromagnet at lower temperatures. A good fit between experimental and theoretical results is obtained using a Heisenberg ferromagnetic simple quadratic lattice model, this yields a J/K equals 12. 5.
El-Tayeb, O. M., F. E. Murad, H. H. Zedan, and A. Abdel-Aziz,
"Microbiological transformations of steroids. V. Factors affecting the transformation of progesterone by nongerminating spores of Cylindrocarpon radicicola.",
Planta Medica, vol. 31, issue 1, pp. 40-50, 1977.