The macroscopic deformed potential energy for super-heavy nuclei 263Db, which governs the entrance and alpha decay channels is determined within a generalized liquid drop model (GLDM). A quasi-molecular shape is assumed in the GLDM, which includes the vol The macroscopic deformed potential energy for super-heavy nuclei 263Db, which governs the entrance and alpha decay channels is determined within a generalized liquid drop model (GLDM). A quasi-molecular shape is assumed in the GLDM, which includes the vol