The cyanide photoisomerization in zinc hexacyanoferrate (II) supported on titanium dioxide-silica gel composite: a matrix effect - Carmo, Devaney Ribeiro do; Franco, Douglas Wagner; Rodrigues Filho, Ubirajara Pereira; Gushikem, Yoshitaka; Stadler, Eduardo; Drago, Valderez (Journal of Coordination Chemistry, 2001)