{"id":12652,"date":"2026-06-03T11:27:29","date_gmt":"2026-06-03T11:27:29","guid":{"rendered":"https:\/\/www.vedprep.com\/exams\/?p=12652"},"modified":"2026-06-03T11:35:38","modified_gmt":"2026-06-03T11:35:38","slug":"square-planar-complexes-for-iit-jam","status":"publish","type":"post","link":"https:\/\/www.vedprep.com\/exams\/iit-jam\/square-planar-complexes-for-iit-jam\/","title":{"rendered":"Square planar complexes: Master IIT JAM 2027"},"content":{"rendered":"

Square planar complexes<\/strong> are coordination compounds where the central metal ion is dsp2 or sp2d hybridized, forming a square planar shape. This is crucial for IIT JAM and CSIR NET chemistry.<\/p>\n

Square planar complexes For IIT JAM: Syllabus<\/strong><\/h2>\n

If you are gearing up for the IIT JAM<\/strong><\/a>, you already know that Coordination Compounds<\/b> is a massive scoring unit. It is packed with concepts like coordination numbers, oxidation states, and Crystal Field Theory (CFT).<\/p>\n

When you pick up standard textbooks like Inorganic Chemistry<\/i> by Shriver and Atkins, or Physical Inorganic Chemistry<\/i> by Housecroft, you will find extensive chapters dedicated to how metal ions bond with ligands. A huge chunk of those pages focuses right on Square planar complexes<\/b>.<\/p>\n

We know that flipping through these massive textbooks can feel overwhelming when you are trying to balance multiple topics. That is exactly why we at VedPrep<\/strong> <\/a>put together this breakdown. Let\u2019s strip away the heavy academic jargon and look at what actually matters for your exam preparation.<\/p>\n

Square Planar Complexes: Definition and Key Features<\/strong><\/h2>\n

Let\u2019s visualize this clearly to understand Square planar complexes<\/strong>. Imagine a central metal ion sitting right in the middle of a square piece of paper. Now, picture four ligands pointing directly at it from the four corners of that square. That is the basic layout of a square planar complex<\/b>.<\/p>\n

\"Square<\/p>\n

Usually, you see this geometry pop up when the central metal ion has a d8<\/sup><\/span>\u00a0electronic configuration. Think of ions like Ni2+<\/sup><\/span>\u00a0or Pd2+<\/sup><\/span>. But here is the catch: to get this specific shape, these metals usually need to pair up with strong-field ligands like CN–<\/sup><\/span> or CO<\/span>.<\/p>\n

A couple of classic textbook examples you will run into constantly are the [Ni(CN)4<\/sub>]2-<\/sup><\/span>\u00a0<\/sup>ion and the [PdCl4<\/sub>]2-<\/sup><\/span>\u00a0ion. These structures are incredibly stable because of the tight bonding between the metal and its ligands. If you are aiming to crack inorganic chemistry questions in the IIT JAM, memorizing this core setup is your first step.<\/p>\n

Here is a quick checklist of the key features of Square planar complexes<\/strong>:<\/p>\n