Novel Copper(I) Halide Polymers:  Structures of Cu₂Br₂(2,3-dimethylquinoxaline) and (2,3-Di(bromomethyl)quinoxalinium)CuBr₂. The Continuing Saga of Copper(II) Bromide Reactivity with Organoamines

Abstract

Experimental SectionSyntheses. (dmq)Cu2Br2 (1). Anhydrous copper(II) bromide (1.03 g, 4.62 mmol) was added to 30 mL of 95% ethanol. The mixture was warmed, and the copper salt dissolved upon the addition of 5 mL of distilled water to give a green/black solution. The 2,3-dimethylquinozaline (0.722 g, 4.56 mmol) was dissolved in 30 mL of warm 95% ethanol. The warm copper solution was then added to the warm, colorless dmq solution to give a reddish brown solution. Upon evaporation of the solvent, reddish brown crystals began to form. The crystals were collected by filtration and allowed to air dry. Yield: 0.577 g, 56%.

Low-Dimensional Hybrid Cuprous Halides Directed by Transition Metal Complex: Syntheses, Crystal Structures, and Photocatalytic Properties

“…Anal. Calcd for C 60 Crystallographic Studies. Single crystals of the title compounds were collected on a Bruker SMART CCD-based diffractometer (Mo Kα radiation, λ = 0.71073 Å) at 293(2) K. Data integrations and cell refinements were done by the INTEGRATE program of the APEX2 software, and multi-scan absorption corrections were applied using the SCALE program for area detector.…”

7,8-Dichloro-1,2,3,4-tetrahydrophenazine

“…E63, o3841 [https://doi.org/10.1107/S1600536807032874] One of the primary interests of our lab is the synthesis and characterization of novel substituted quinoxalines and the closely related phenazines. Quinoxalines and their derivatives have received considerable attention in the past several years due to their electronic properties (Page et al, 1998;Simpson & Gordon, 1995), H-bonding ability (Pascal & Ho, 1993;Wozniak et al, 1993), and their capacity to coordinate to metals (Wu et al, 2002;Willett et al, 2001). During our investigations, we have prepared a number of substituted quinoxalines and phenazines, which readily coordinate to copper iodide forming novel structures.…”

“…For related literature, see: Brown et al (2004); Farrugia (1997); Gibson et al (2006); Page et al (1998); Pascal & Ho (1993); Simpson & Gordon (1995); Willett et al (2001); Wozniak et al (1993); Wu et al (2002).…”

2,2,3,3′-Tetraphenyl-7,7′-biquinoxaline

“…For applications of quinoxalines see: Mollegaard et al (2000); Aldakov et al (2005); Kaiwar et al (1997); Anzenbacher et al (2000). For related literature, see: Brown et al (2004); Bruno et al (2002); Gibson et al (2006); Page et al (1998); Pascal & Ho (1993); Salvatore et al (2006); Simpson & Gordon (1995); Willett et al (2001); Wozniak et al (1993); Wu et al (2002).…”