Dear Nura Musa, the literature on Schiff bases is rather vast. For some initial information you could check out the corresponding Wikipedia entry. There are also numerous contributions on RG regarding Schiff bases. Please let me know if you need any further information on specific compounds.
Dear Nura Musa, as I said, the body of literature on Schiff bases is really huge (hundreds or thousands of references!). Once you are interested in any specific Schiff bases, I can certainly provide you with more detailed informations. 👍
Dear Nura Musa, as you have seen from the precious answers, you question was perhaps too general. It's a bit like "Send me all about chemistry!" 😂 If you have any more specific questions about particular Schiff bases, I shall be glad to answer them! 👍
Once upon a time, I have synthesis a lot of Schiff base ligands and it's metal complexes. I have a little bit publications . You might contact with me directly