SEARCH Articles Figures Tables Adjacency Matrices and Their Eigenvalues for Toroidal Polyhexes Examples of Graph—Theoretically Nonplanar Polyhexes Kekule Structures of Toroidal Polyhexes Mobius—Polyhexes Polyhex enumeration Polyhex hydrocarbons Polyhex sheet Properties of the 2 x 2 Toroidal Polyhex Matrix Toroidal polyhex