The molecule Pt(NH₃)₂Br₂ is square planar and has a dipole .What does this indicate about the orientation of the ligands about the central metal atom? A) It is a trans isomer B) It is a cis isomer C) It is a tetrahedral isomer D) Any lone electron pairs it contains must be cis to each other E) It does not give any indication of the orientation of the ligands.

Question

Quizplus · Accepted Answer

The fact that the molecule has a dipole indicates that the ligands are not arranged symmetrically around the central metal atom. A square planar arrangement can have either a cis or trans isomer, but the dipole suggests that the ligands are arranged in a cis configuration. Therefore, choice B is the best choice. Choice A cannot be definitively determined without additional information, choice C is incorrect as this is not a valid isomer for a square planar molecule, choice D is also incorrect as the presence of a dipole does not necessarily indicate the presence of lone electron pairs, and choice E is incorrect as the dipole does provide information about the orientation of the ligands.

The Molecule Pt(NH3)2Br2 Is Square Planar and Has a Dipole

The Molecule Pt(NH₃)₂Br₂ Is Square Planar and Has a Dipole