structure of molecule for coordination number of 4

Moderators: Chem_Mod, Chem_Admin

505166714
Posts: 50
Joined: Fri Sep 28, 2018 12:17 am

structure of molecule for coordination number of 4

Postby 505166714 » Sun Dec 02, 2018 2:59 pm

The syllabus says that we need to identify and draw structures of coordinate compounds. How do I know whether the shape of the molecule is tetrahedron or square-planar when the coordination number is 4.

Albert Duong 4C
Posts: 66
Joined: Fri Sep 28, 2018 12:17 am
Been upvoted: 1 time

Re: structure of molecule for coordination number of 4

Postby Albert Duong 4C » Sun Dec 02, 2018 3:39 pm

Generally, one cannot accurately predict whether a coordination compound is square planar or tetrahedral through its coordination number alone; they would require detailed calculations or experiments. However, if it's worrying you a lot, almost always, metal ions in the d8 orbitals (like Ni, Pd, and Pt) will form square planar structures due to a more favorable ligand field stabilization energy (we are not expected to know this); otherwise, it tends to be a tetrahedral shape with some other exceptions.


Return to “Shape, Structure, Coordination Number, Ligands”

Who is online

Users browsing this forum: No registered users and 2 guests