Controlling the emission in flexibly-linked (N^C^N)platinum dyads

H NMR studies. The interacting processes are highly dependent on the solvent polarity that controls the - extended vs folded - arrangement and, consequently, induces solvatochromic shifts. This unique photophysical behavior of Pt-2 allows the modulation of the emission from green to deep-red (up to 125 nm) over the visible part of the spectrum. By contrast, complex Pt-3 has a high propensity to form a red-shifted intense emissive excimer. DFT and TD-DFT investigations of the excimers in Pt-2 and Pt-3 consistently show a much stronger interaction in the latter complex.