Srividya Swaminathan

11 Questions 11 Answers 0 Followers

Questions related from Srividya Swaminathan

What is the difference between coordination polymer, MOFs, MCOFs?

Wherever I have referred, it puts me in a dilemma about the exact differences between these. It would be really helpful if someone can put me out of this trouble.

22 July 2024 3,182 3 View

Why does C=S have a higher chemical shift in 13C NMR over C=O; given oxygen is more electronegative?

In 13C NMR, we see that C=S resonates around 170-180 whereas C=O at 150-160 ppm. Given oxygen is more electronegative; shouldn't it be vice-versa?

05 July 2022 8,106 5 View

Why is chorine considered as a ligand in coordination chemistry?

Given chlorine is an anionic ligand, there is a sharing of electrons between Cl and the metal ion (definition of covalent bonding). Can the bonding between be considered Co-ordinate? if so why?

02 July 2022 4,005 6 View

Why are metal complexes readily soluble in chlorinated solvents?

Normally, polarity affects the solubility of a metal complex. However, my complex has excellent solubility in DCM and chloroform but is sparingly soluble in acetonitrile which has a higher dipole...

16 December 2021 2,952 4 View

How to get ESI/supplementary information of Elsiever journals?

How can i download supplementary information of Elsiever/science direct journals?

18 June 2021 7,750 3 View

On hydrolysis, changes in UV-Vis spectrum is occurring but not in NMR and mass. Why is it happening?

For my organometallic complex of the type [RuCl2(Z)], where Z is a neutrally coordinated ligand, I am observing distinct changes in UV Visible spectrum upon hydrolysis (complex is added to water)....

06 May 2021 6,589 8 View

Is it possible for a metal complex to change its coordination mode between solid and solution state??

Is it possible for a metal complex to change its coordination mode between solid and solution state?? My crystal data indicates bidentate coordination whereas NMR inidicates monodentate one.

26 March 2021 7,242 13 View

How to interpret this UV-Visible spectra?

I am studying the hydrolysis of an organometallic complex in water, for which I obtained a time dependent spectra as attached. The spectra at 0th min and 10th min dont match or have an isobestic...

17 August 2020 2,964 4 View

How do we distinguish between d-d and MLCT transistions?

For complexes, which have red/orange colour, the absorption for dd occurs nears 420-450 nm. However how do we know it is not MLCT but dd.

16 July 2020 2,333 2 View

How can we tell if a ligand is pi-acceptor, sigma donor or vice versa?

For complex molecules with many heteroatoms, can we predict if the molecule is pi-acceptor or donor? Also if possible can someone suggest a good source to read more about these stuff in detail?

15 July 2020 3,432 2 View

Is it possible for the ligand signals to remain unchanged in NMR for a monodentate neutral coordinated complex?

my NMR signals, both in 1H and 13C, vary only slightly in ligand and complex. However the metal precursor signals are present in the complex nmr along with the ligand signals. Is it possible?

09 July 2020 6,204 16 View