The role of population coding in the control of movement

Novel codimer (I) of norbornadiene and 1,3-cyclohexadiene and its hydrogenated derivative (II), having the following structures: and processes for preparing both are disclosed. Product (II) can be used as a high energy fuel. Process for codimer I involves use of three component homogeneous catalytic system of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphino ethane and one of three alkyl aluminum chlorides.