Crystal and molecular structures of dichloro((Z)-2-chloro-2-phenylvinyl)(organo)tellurium(IV) for organo = n-butyl and phenyl

Abstract

In each of the title compounds, R[Ph(Cl)C=(H)C]TeCl

Crystallographic, DFT and docking (cathepsin B) studies on an organotellurium(IV) compound

“…These, i.e. X = Xꞌ = Cl and R = Ph [41], X = Xꞌ = Br and R = CH2OH [42] and X = Cl, Xꞌ = Br and R = Cy [43], each feature a Z configuration about the vinyl bond and an intramolecular Te … X interaction.…”

1-[(Z)-1-Bromo-2-(butyldichloro-λ4-tellanyl)ethenyl]cyclohex-1-ene

“…The title compound, (I), was synthesized using a palladium-catalyzed cross-coupling reaction of a potassium aryltrifluoroborate salt with various (Z)-2-chloro vinylic tellurides (Guadagnin et al, 2008). Complementing these studies are crystallographic studies (Zukerman-Schpector et al 1998;Zukerman-Schpector et al, 2008) focused upon determining coordination polyhedra and supramolecular aggregation patterns (Zukerman-Schpector & Haiduc, 2002;Tiekink & Zukerman-Schpector, 2010) which lead to the crystallographic characterization of (I).…”

Bis[(4-methylphenyl)ethynyl] telluride

“…For the synthesis of bis-ethynyl tellurides, see: Gedridge et al (1992); Engman & Stern (1993). For background to the motivation of studies into tellurium chemistry, see: Petragnani & Stefani (2007); Zukerman-Schpector et al (2008). For related structures, see: Jones & Ruthe (2006).…”

“…However, the synthesis and use of bis-ethynyl tellurides are scarcely described in the literature (Gedridge et al, 1992, Engman & Stern, 1993 and their use in the detelluration reaction to afford 1,3-diynes is unknown until now. As part of our ongoing research into tellurium chemistry (Petragnani & Stefani, 2007;Zukerman-Schpector et al, 2008), the title compound, (I), was synthesized and its crystal structure determined.…”