Is co H2O 6 2+ high spin or low spin?

Is co H2O 6 2+ high spin or low spin?

Octahedral, six-coordinate Co2+ can exist in two spin states. For biological ligands, H2O and NH3, the most stable spin state is high spin (S = 3/2). The difference in energy between high and low spin is dependent upon the ligand mix and coordination stereochemistry.

Is H2O strong or weak ligand?

H2O is a weak field ligand because it form high spin complex with transition elements. H2O is a weak ligand.

Why is water not a bidentate ligand?

Why water is monodentate, Althoug it has two lone pairs instead of one. For a ligand to be monodentate it must have ONE lone pair? Because of Orbital geometry, only one lone pair can have the correct orientation to ‘bond’ (the other will be pointing away from the central atom). so its unidentate.

Is cyanide a Monodentate?

Re: Why is a cyanide ion monodentate? Answer: Try to visualize this… because cyanide is a linear molecule, if the N attaches to metal, then the lone pair on C is pointing 180 degrees away and there is no way for this lone pair to wrap around and bind to the metal. The same goes if C attaches to the metal.

Is H2O a monodentate ligand?

In H2O, both lone pairs are on the oxygen. There would be only one binding site between H2O and the central metal. So it is a monodentate.

What is a ligand and what does it do?

In biochemistry and pharmacology, a ligand is a substance that forms a complex with a biomolecule to serve a biological purpose. The etymology stems from ligare, which means ‘to bind’. In protein-ligand binding, the ligand is usually a molecule which produces a signal by binding to a site on a target protein.

Is a hormone a ligand?

The signaling molecule (a hormone, pheromone, or neurotransmitter) acts as a ligand, which binds to, or “fits,” a site on the receptor. Binding of a ligand to its receptor causes a conformational change in the receptor that initiates a sequence of reactions leading to a specific cellular response.

Why can’t all receptors be inside the cell?

Because membrane receptors interact with both extracellular signals and molecules within the cell, they permit signaling molecules to affect cell function without actually entering the cell. Not all receptors exist on the exterior of the cell. Some exist deep inside the cell, or even in the nucleus.