Transcription of Flow Chart - Point Group Determination - …
1 Molecular Structure Does the Is the molecule Yes Yes molecule contain an D!h linear? inversion center? No No C!v Does the Does the molecule contain molecule contain Does the Yes Yes Yes two or more unique two or more unique molecule contain an Ih C3 axes? C5 axes? inversion center? No No No I. Does the molecule contain Does the Yes Yes Oh two or more unique molecule contain an C4 axes? inversion center? No No O. Does the molecule Does the Yes Yes contain one or more molecule contain an Th reflection planes? inversion center? No No T Td Does the Identify the Does the molecule contain a Yes highest order Cn. Yes molecule contain a Yes Dnh proper rotation axis Are there n perpen- horizontal reflection (Cn)?
2 Dicular C2 axes? plane ("h)? No No No Does the Does the Does the molecule contain a molecule contain n Yes Cs Yes Cnh Yes Dnd molecule contain a horizontal reflection dihedral reflection reflection plane? plane ("h)? planes ("d)? No No No Dn Does the Does the Yes molecule contain n Yes molecule contain an Ci Cnv vertical reflection inversion center? planes ("v)? No No C1. Does the molecule contain a Yes S2n 2n-fold improper rotation axis? No C
