在包括f轨道的INDO方法中,为保证单中心双电子积分的旋转不变性。提出了两种方法,一种是将单中心双电子积分(μμ|νν)、(μν|μν)和(μμ|μμ)分别用它们的权重平均值J_(μμ’)、K_(μμ’)和J_(μμ)’=J_(μμ’)+2K_(μμ’),来代替;第二种方法除了Coulomb积分和交换积分外,还保留全部单中心双电子杂化积分。为此,导出了690个非零的杂化积分的Slater-Condon参数表达式。 In the INDO method involving the f-orbit, the rotation invariance of the double-electron integral in the single center is guaranteed. Two methods have been proposed. One is to use the weighted average J_ (μμ ’), K_ (μμ’), and (μμ | μν) And J_ (μμ) ’= J_ (μμ’) + 2K_ (μμ ’). The second method retains all the single center two-electron hybridization points in addition to Coulomb integrals and exchange integrals. For this purpose, a Slater-Condon parameter expression of 690 non-zero hybrid integrals is derived.