Mainly organic aromatic molecules having donor moiety like dialkylamino group in one part and the acceptor moiety at the other extreme will show very intersting solvatochromic propety in both ground state as well as in excited state (If intamolecular hydrogen bond or proton tranfer possiblity will be there then also it will be quite good). However I dont know why u r interested for ground state, generally these types of fluoroscents probes shows more interesting behavior in excited state rather than in groud state.

Transition metal complexes containing coordinated CN ligands of the type cis-L2M(CN)2, where L = 2,2'-bipyridine or 1,10-phenanthroline derivatives and M = Fe or Ru exhibit strong dependence of their ground state absorption spectra on solvent. A review containing references to the Ru complexes is: A. Juris, et. al. Coord Chem Rev. 1988, 84(1), 85-277. S. Ferrere described solvatochromism of the corresponding Fe complexes: S. Ferrere Inorg. Chim. Acta 2002, 329(1), 79-92. Earlier work by A.A. Schilt may provide additional info for the Fe species, though I don't have a reference on hand to pass on.

Thanks Walter for you helpful answer. More input is always welcome.

@Anasuya Mishra: infact, I have done my research on solvatochromism, in both ground and excited state. To continue with this, I have only absorption spectrophotometer right at the moment but no fluoremeter. So I am just looking for different molecules for interesting ground state solvatochromism.

you can try by using betain dye (ET-30) which is known as a polarity probe and shows strong solvatochromic behaviour with the change in polarity.

I have a doubt there is much research work left, that can be done on ET-30:-)

It might be still interesting to investigate on supramolecular interaction from solvatochromic dyes with "caging" molecules such as dextrines, or detergent micelles. Also, it might be worthwile to investigate the influence of novel types of solvent such as ionic liquids on solvatochromic dyes.

In general, the answers to your question point to work that has already been done, you should use this only as a starting point to the realm of the unknown...

thanks Friedrich

There are many cationic dyes which have this effect. Their example can be Safranine, neutral red, thionine. Can be studied effect of solvent polarity, interact with clays or zeolites, or other supramolecular interaction.