A solvatochromic compound is a chemical compound that changes its color based on solvent polarity. We found that the [Mo(bpy)Cl4]- and [Mo(phen)Cl4]- anions are highly solvatochromic over a wide range of solvents. From water to acetone, the absorbance maximums shifts over 100 nm with a corresponding color change of yellow to blue, respectively. Mo(IV)/Mo(III) and Mo(III)/Mo(II) redox couples were observed via cyclic voltammetry and confirmed through DFT methods. However, TD-DFT was unable to significantly predict the solvatochromism observed experimentally. Tungsten analogs were synthesized for comparison and showed less solvatochromism. The electronic structures of these analogs are compared to rationalize this finding.

Experimental and computational investigation of highly solvatochromic group 6 diimmine complexes

Macromolecular Chemistry: The Second Century

[Author Benefits](https://scimeetings.acs.org/?utm_source=pubs_content_marketing&utm_medium=website&utm_campaign=0320_MCF_NPI_Launch_Spring_Homepage&ref=pubs_content_marketing)

[How to use SciMeetings](https://storage.googleapis.com/dl.morressier.com/acs/SciMeetings-ACSSpring2020-HowToGuide_M3020-Final.pdf)

[Frequently Asked Questions](https://storage.googleapis.com/dl.morressier.com/acs/SciMtng_ACSNMSp2020_FAQ_M3120_Final.pdf)

ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.