Si 1.0000000000000000 0.0000000000000000 2.6124387705613201 2.6124387705613201 2.6124387705613201 0.0000000000000000 2.6124387705613201 2.6124387705613201 2.6124387705613201 0.0000000000000000 Si 2 Cartesian 0.6531096926403300 0.6531096926403300 0.6531096926403300 4.5717678484823105 4.5717678484823105 4.5717678484823105