Stereochemistry of metal tetramethylcyclam complexes directed by an unexpected anion effect. Issue 39 (26th May 2017)

• Record Type: Journal Article
• Authors: Derrick, Jeffrey S.; Kim, Yujeong; Tak, Hyeonwoo; Park, Kiyoung; Cho, Jaeheung; Kim, Sun Hee; Lim, Mi Hee
• Is Part Of: Dalton transactions. Volume 46:Issue 39(2017)
• Page Start: 13166
• Page End: 13170
• Publication Date: 2017-05-26
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7dt01489a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : An unexpected anion effect leads to the direct and selective preparation of the trans -III-[Cu(TMC)] 2+ complex that is fully characterized by X-ray crystallography, UV-visible spectroscopy, advanced EPR spectroscopy, and computational studies. Abstract : Metal(TMC) complexes (TMC = tetramethylcyclam) exclusively form trans -I diastereoisomers; thus, little is known about the trans -III isomers. Herein, we report a new method to prepare the trans -III-[Cu(TMC)] 2+ complex via an anion effect. Our crystallographic, spectroscopic, and computational analyses validated that [Cu(TMC)](NO3 )2 produced the trans -III complex, different from the trans -I structure of [Cu(TMC)](ClO4 )2 .