“…Examples of Co(II) and Ni(II) perchlorates with anionic bridges are much rarer [67,68]. A few works also report the coordination of perchlorate with Co(II) or Ni(II) within the relevant polymeric networks [69,70].…”
Section: Crystal Structure Descriptionmentioning
confidence: 99%
“…Examples of Co(II) and Ni(II) perchlorates with anionic bridges are much rarer [67,68]. A few works also report the coordination of perchlorate with Co(II) or Ni(II) within the relevant polymeric networks [69,70]. According to the PLATON [71] estimation, the layered coordination network in 1 and 2 possesses 20% total void volume, if erasing dioxane from the structure.…”
Two new metal–organic frameworks based on highly flexible 1,4-diazabicyclo[2.2.2]octane N,N′-dioxide (odabco) ligands were successfully synthesized and characterized. Their crystallographic formulae are [M(DMF)2(odabco)2](ClO4)2·dioxane, where M2+ = Co2+ (1) and Ni2+ (2), and DMF is N,N-dimethylformamide. The title compounds possess cationic 2D coordination networks filled with perchlorate anions and dioxane solvent molecules in the interlayer space, with 20% solvent accessible volume. Carbon dioxide adsorption measurements for desolvated samples 1a and 2a gave 511 m2/g and 377 m2/g specific surface areas, respectively, revealing the first example of gas adsorption properties in the structure based on a flexible odabco bridge, despite the presence of large counteranions within the positively charged network. Magnetization measurements for 1, 1a, 2 and 2a reveal their paramagnetic nature to be in a reasonable agreement with crystal structures, and almost no solvent dependence of the magnetization characteristics. A decrease in the effective magnetic moment observed at low temperatures is attributed mostly to zero-field level-splitting in the octahedral Ni2+ and Co2+ ions.
“…Examples of Co(II) and Ni(II) perchlorates with anionic bridges are much rarer [67,68]. A few works also report the coordination of perchlorate with Co(II) or Ni(II) within the relevant polymeric networks [69,70].…”
Section: Crystal Structure Descriptionmentioning
confidence: 99%
“…Examples of Co(II) and Ni(II) perchlorates with anionic bridges are much rarer [67,68]. A few works also report the coordination of perchlorate with Co(II) or Ni(II) within the relevant polymeric networks [69,70]. According to the PLATON [71] estimation, the layered coordination network in 1 and 2 possesses 20% total void volume, if erasing dioxane from the structure.…”
Two new metal–organic frameworks based on highly flexible 1,4-diazabicyclo[2.2.2]octane N,N′-dioxide (odabco) ligands were successfully synthesized and characterized. Their crystallographic formulae are [M(DMF)2(odabco)2](ClO4)2·dioxane, where M2+ = Co2+ (1) and Ni2+ (2), and DMF is N,N-dimethylformamide. The title compounds possess cationic 2D coordination networks filled with perchlorate anions and dioxane solvent molecules in the interlayer space, with 20% solvent accessible volume. Carbon dioxide adsorption measurements for desolvated samples 1a and 2a gave 511 m2/g and 377 m2/g specific surface areas, respectively, revealing the first example of gas adsorption properties in the structure based on a flexible odabco bridge, despite the presence of large counteranions within the positively charged network. Magnetization measurements for 1, 1a, 2 and 2a reveal their paramagnetic nature to be in a reasonable agreement with crystal structures, and almost no solvent dependence of the magnetization characteristics. A decrease in the effective magnetic moment observed at low temperatures is attributed mostly to zero-field level-splitting in the octahedral Ni2+ and Co2+ ions.
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.