Why are Transition Metal Complexes Coloured?

[@charlottegilligan3874]

Thank you so much sir. You are a great teacher and a fresh breath of chemical air.

[@kellykinros6390]

Your explanations are so clear 😭thank you Soo much

[@amanda7553]

thank you so much for this video, sir. i has a hard time understanding this subtopic in our transition element chapter, especially predicting the colour. but after listening to your explanation, i can now grasp this concept

[@mofadla4000]

That’s a really simple and informational video, really enjoyed it 😊

[@emeraldivory7464]

thank you sooooo much for this, i genuinely love you rn

[@nalauv]

thank you sir !! very clear explanations and easy to understand !

[@spamshay7779]

Easy to understand!!!!! Tqvm!!!

[@dasu2332]

Thankyou very much sir. I understood clearly .

[@moocool]

Love you god bless you with a lot of success

[@HarveerSingh-rg5kn]

Thank you very much sir, the explanation was very clear :)

[@c73o]

mind if i ask why is it that only orange light is absorbed by the electron? why is it that other energy levels / colours of light are reflected? i.e. why cant the electron just absorb something of even higher energy and maybe have both the electrons promoted to the higher part? (not just one high and one low)

[@nurarahman4753]

This was soooo helpful. Thank you so much

[@shubhrajit2117]

At 4:15, will the electron not transition back to its ground state afterwards? Then it'll emit the orange light and the net effect will be white?

[@ChemistryGuru]

that's a very good observation. it is true that electron will lose energy, emit the same orange light and go back down to lower d level for subsequent d-d transition. However the emission will be dispersed in all directions, so the intensity of orange light is much lower as compared to the rest of the light that travel to our eyes, so we will not be able to detect the orange light. For A Level syllabus we do not need to include this in the answer, so we just need a very simplified version to explain the colours of transition metals

[@golladeepa707]

Tqsm sir for this explanation......it hits directly deeply into my brain ❤

[@rheamalhotra5097]

Thank you!! This was extremely helpful.

[@sakai9848]

Hiya, I just wanna say this video is brilliant 🤩 🎉❤

[@Truth_Seeker1202]

Helpful video thank you. God bless you.

[@patiencendlovu3625]

Thank you do much.... Well explained

[@johnkyle6450]

Thanks so much never really understood how to explain it not using the mathematical way

[@klarapekas]

Such a useful video! Thank you!

[@Ayana781]

Thank you so much 😊😊😊😊

[@葉赫那拉榮禹]

Exremely useful Mr Puah! Btw, i have a question on the drawing of the dot and cross diagram for a carbon monoxide molecule. I m trying to use one of your videos to draw but m still having difficulty to draw.

[@ChemistryGuru]

Hi for carbon monoxide C needs 4 electrons from O but O only needs 2 electrons from C. So what O will do is form a double bond with C, plus an additional dative bond from O to C. So in total we have a triple bond in carbon monoxide, one of which is a dative bond from O to C. Hope this clarifies 😄

[@fostermcbride3024]

Great explanation! Very easy to understand. Thank you!

[@timohawabit89]

Thank you so much

[@naveensingh5787]

But FeSO4 is green colour, this is not a complex compound?

[@polashkhan8470]

Thank you sir

[@carljhonson9958]

*HELP ME* LOTS OF LOVE FROM AFRICA

[@me57shreyashjadhav37]

Thank you sir I really understood it very very very well.. Now totally fixed in my mind ...thanks SIR( for your efforts)

[@amarachianyiam1622]

Thank you so much sir. This was really helpful💃💃

[@ChemistryGuru]

Hi Amarachi thanks for the compliment! glad the video helped! :)

[@theone3054]

really good explantion. I'm just slightly confused on one thing, why do different ligands and different ions produce different colours? Is there a pattern?

[@ChemistryGuru]

different ligands and different oxidation state of the transition metal will change the energy gap between d orbitals and d* orbitals. This means a different colour which corresponds to a different energy will be absorbed and we see a different complementary colour that is not absorbed. Therefore there will be a change in the colour of the transition metal compound/complex when there is: 1. change in oxidation state 2. change in ligands

[@theone3054]

@@ChemistryGuru thank you!

[@Ayana781]

In my textbook there is example of [Ti(H2O)6]+3 and the information given is 'it absorbs 520 nm '(which is nearly green region ) so according to your wheel we get red color but the transmitted color of complex is said as violet How ?

[@ChemistryGuru]

In general red is the complementary colour of green, but it is possible that the wavelength of 520nm is close to the green- yellow region, so the colour will then be red-violet region (directly opposite the green-yellow boundary). Remember the boundaries we draw are just guidelines as there will be a gradual change of colour and there is no clear boundary between them.

[@Ayana781]

@@ChemistryGuru oh thank you ....i understood 😊

[@davidina3675]

Nice video

[@RohanSingh-uu8pl]

muy bueno

[@TheDnPiano]

Thank you very much sir! That helped a lot!

[@ezinneodo9903]

thank you.

[@simrangill6364]

Thank you very much sir 👍😊

[@animestunts9407]

Arigato sir

[@abdullahkhasawneh328]

youre goated sir

[@DrQTR-bg2oy]

thank you sooooooooooo much ❤️❤️❤️❤️

[@karansinghmadhwal1074]

sir why complex compounds are emit complemrntry colour

[@prodbynalin]

🔥🔥🔥🔥