The equilibrium structure and dissociation energy of TF molecule at the ground state are calculated and optimized using quantum chemistry methods CCSD(T)and QCISD(T) at the 6-311++G** and cc-pvdz basis set.

• 电子相关耦合族方法CCSD(T)和QCISD(T)以及基组6-311++G**和cc-pvdz是目前最可靠的单参考组态方法。 利用其对TF分子的基态进行优化计算；使优化的平衡间距分别为0.；091 599 872 nm；