A hexadentate ligand for polymerization of olefins including chemical structure I is provided: ##STR00001## R1, R2, and R3 of chemical structure I are each independently hydrogen, hydrocarbyl, substituted hydrocarbyl, or an inert functional group; R4 and R5 are each independently hydrogen, hydrocarbyl, an inert functional group, or substituted hydrocarbyl; Y1 is a structural bridge; and W, Y1, and Z are independently hydrogen, hydrocarbyl, an inert functional group, or substituted hydrocarbyl having from about 0 to about 30 carbon atoms. In another embodiment of chemical structure I, W, Y.sub.1, and Z are selected to produce chemical structure II: ##STR00002## R.sub.6, R.sub.7, R.sub.8, R.sub.9, and R.sub.10 of chemical structure II are each independently hydrogen, hydrocarbyl, an inert functional group, or substituted hydrocarbyl; R.sub.A, R.sub.B, R.sub.C, and R.sub.D are each independently hydrogen, fluorine, an inert functional group, a primary carbon group, a secondary carbon group, or a tertiary carbon group; Y.sub.2 is a structural bridge between two halves of the structure, and more particularly may be a bond, a hydrocarbyl group comprising from about 0 to about 20 carbon atoms, methylene (CH.sub.2), ethylene (C.sub.2H.sub.4), or an inert functional group; and any two of R.sub.A, R.sub.6, R.sub.7, R.sub.B, R.sub.C, R.sub.8, R.sub.9, R.sub.10, and R.sub.D, or any portion of Y.sub.2, vicinal to one another, taken together may form a ring.