Three chiral Schiff base (bis(N-R-2-phenylpropyl-3,5-dichlorosalicydenaminato)) nickel(II), copper(II), and zinc(II) complexes have been investigated by means of electronic and CD (circular dichroism) spectra is the solid state as well as PMMA solutions of various concentration. Because these complexes possess long and flexible pendant groups, they are sensitive to viscosity of matrix environment. Indeed so-called solid state (artifact) CD peaks could be observed as characteristic to oriented molecules without free molecular rotation and they indicated changes of intensity depending on matrix environment (not concentration but viscosity). For the first time, we have employed chiral metal complexes indicating conformational changes and found that solid state CD peaks can be affected by not only environmental viscosity of a softmater matrix but also structural and spectral features of chiral materials.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.