The dependence of lattice parameters upon the compositions x (0.00≤x≤0.10) inCd_(1-x)Zn_xTe crystals are given,and the lattice parameters are compared with those of ternaryCd_(1-x)Hg_xTe crystals.The misfit in bicrystal systems of Cd_(0.094) Zn_(0.036)Te-Cd_(0.2)Hg_(0.6) Te andCdTe-Cd_(0.2)g_(0.6)Te is calculated, and the lattice mismatch is discussed.