4

Ar     -0.169415390967896     -0.134626916323794      0.022780340513900
Ar      1.309071831577695      1.186092397115115      0.168867471458979
Ar      1.173104207788831     -0.046469233944528      0.969666404948278
Ar     -0.035512715497731      1.240246691106573      0.987670393736817