16

O      20.997935470460774     21.281872386631818     21.010011921037780
Si     22.484533391399918     22.601701203914999     22.155547208039788
Si     23.719043860030926     21.000826016281056     21.246240972684671
Si     25.643024017571065     22.354988933020955     22.792630634635827
Si     21.209471240111462     23.855128506235115     21.052807135443839
O      22.413338831542035     25.346554906332898     22.372412352686620
O      23.822308438900279     23.910491598064098     20.722864201591612
O      25.332209133925932     25.252054202863178     22.890626397428555
Si     21.087127119277234     20.702457451760800     24.164310824750572
O      22.314257295949034     22.488440649173398     25.532777132345814
O      23.675101241306820     20.873661359524981     23.960976737521101
Si     24.985156394733053     22.718138927456430     25.267160691478363
Si     21.194102356536352     23.830964971965351     23.882011970594089
Si     22.433005925823434     25.220024819735865     25.276964267043741
O      23.916615582216835     23.965121920042797     24.225865614041474
O      25.793911941800705     25.226145294387827     25.521031448075831