10
https://doi.org/10.1002/jcc.21769
 Si        -0.3600258537        1.8042474367       -0.7454803237
 Si         0.5413336318       -1.2544705968        2.5361713568
 Si        -0.9427376926        2.0472617103        1.6138780951
 Si        -0.4231760752       -0.6403210948       -1.2838713023
 Si        -1.2118109217       -1.8407575276        0.7737894029
 Si         1.7146219142        0.5342494581       -0.5262024190
 Si         1.2330514404       -1.7331414501        0.2433143386
 Si         1.2403239495        0.9750712436        1.8278995538
 Si        -1.6165524283       -0.1106821650        2.5382618488
 Si        -2.2098104324        0.3769097426        0.1549694398