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The title represents my overall question. I would like to have a software that able to draw molecules (especially coordination complexes) and determine the symmetry elements and point group of the molecules. I have a PC with Windows 10 system and an iPad Pro.

Thank you.

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Coordination compounds / complexes may be a bit tricky in terms of «what do you define as a bond» (covalent / dative bond) and the convention what a stroke between atoms expresses (e.g. in the representation in compounds like ferrocene). But if you already have a .mol or .pdb file in available, you could try Jmol:

enter image description here

(credit, includes some details how to use the program this way)

While the example is about methane as a simple organic molecule, Jmol is well capable to interact with crystal structure models, and displaying symmetries of the unit cell, too:

enter image description here

(credit, Hanson, J. Appl. Cryst. 43, 2010, 1250-1260 [open access])

including interactive galleries like Symmetry@Otterbein both about molecular and crystal symmetries.

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