Mechanism for the radiation capture of thermal neutrons by the nuclei $sup 60$Ni, $sup 62$Ni, $sup 64$Ni, $sup 64$Zn, $sup 66$Zn, $sup 68$Zn, $sup 70$Ge, $sup 72$Ge, $sup 74$Ge, and $sup 74$Se, $sup 76$Se, $sup 78$Se, and $sup 80$Se