Cis-Conformation of indigo in the coordination complex (indigo-O, O)(Cp*CrIICl). Issue 43 (17th October 2016)

• Record Type: Journal Article
• Authors: Konarev, Dmitri V.; Khasanov, Salavat S.; Kuzmin, Aleksey V.; Shestakov, Alexander F.; Otsuka, Akihiro; Yamochi, Hideki; Saito, Gunzi; Lyubovskaya, Rimma N.
• Is Part Of: Dalton transactions. Volume 45:Issue 43(2016)
• Page Start: 17095
• Page End: 17099
• Publication Date: 2016-10-17
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c6dt03545k
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : The interaction of decamethylchromocene (Cp*2 Cr) with indigo yields the complex (indigo- O, O )(Cp*Cr II Cl) (1 ). Indigo adopts an unusual cis -conformation in1, allowing the coordination of both indigo carbonyl groups to Cr II . Abstract : The interaction of decamethylchromocene (Cp*2 Cr) with indigo in the presence of a Cl − source yields the coordination complex (indigo- O, O )(Cp*Cr II Cl) (1 ) in which one Cp* ligand at chromium is substituted by indigo. Indigo adopts an unusual cis -conformation in1, allowing the coordination of both indigo carbonyl groups to one Cr II center. Complex1 contains Cr II with an S = 1 spin state and indigo 0 . At the same time, calculations show that an excited ionic state is positioned close to the neutral ground state, providing the appearance of intense low-energy NIR bands in the spectrum of1 at 820 and 1002 nm attributed to metal-to-ligand charge transfer.