what is trans effect ? who know this answer they must only reply if u didnot know then leave it
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In inorganic chemistry, the trans effect is the labilization (making more reactive) of ligands that are trans to certain other ligands, which can thus be regarded as trans-directing ligands. It is attributed to electronic effects and it is most notable in square planar complexes, although it can also be observed for octahedral complexes.[1] The cis effect is most often observed in octahedral transition metal complexes.
In addition to this kinetic trans effect, trans ligands also have an influence on the ground state of the molecule, the most notable ones being bond lengths and stability. Some authors prefer the term trans influence to distinguish it from the kinetic effect,[2] while others use more specific terms such as structural trans effect or thermodynamic trans effect.[1]
The discovery of the trans effect is attributed to Ilya Ilich Chernyaev,[3] who recognized it and gave it a name in 1926.