Factors influencing catalytic activity of Co–Zn double-metal cyanide complexes for alternating polymerization of epoxides and CO2

Unusually Strong Dipole–Dipole and Dipole–Quadrupole Interactions in a Nanoporous Solid. Crystal Structure and Related Properties of (VO)3[M(CN)6]2·nH2O (M = Fe, Co)

“…Prussian blue analogues form an interesting family of coordination compounds, which has been studied as tunable molecular magnets, porous solids for hydrogen storage, in heterogeneous catalysis, proton conduction, among other applications. The 3D framework for these coordination compounds results from the assembling of the hexacyanometallate complex anion, [ M m + (CN) 6 ] 6– m , through a second transition metal ( T n + ), which is linked at the N end of the CN ligand, to form solids of formula unit T x [ M (CN) 6 ] y where nx = y (6– m ).…”

“…At the surface of the resulting cavities, six central metal atoms ( T ), with an open coordination sphere, are found. These partially naked metal sites determine the above‐mentioned properties . In the as‐synthesized material, the available metal coordination positions at the cavity surface are occupied by water molecules which, at the same time, stabilize additional water molecules inside the cavity through hydrogen bonding interactions.…”

Synthesis and flame retardant potential of polyols based on bisphenol‐S

“…Instead, the viscous product (polyol) obtained by reacting bisphenol S with propylene carbonate (Table ) was used as an initiator for DMC catalyzed alkoxylation. HPPS initiator (45.8 g, 0.125 mol) was added to a 500 cc Zipperclave TM reactor along with aqueous phosphoric acid (0.15 M, 1.21 μl) followed by DMC catalyst (0.0125 g) and aluminum isoproxide (0.095 g). The mixture was heated to 145 °C with a N 2 purge for 2 h to dry the mixture.…”

The removal of heavy metal ions from wastewater/aqueous solution using polypyrrole-based adsorbents: a review

“…59,60 However, an excess of these metal ions will cause serious problems in living organisms due to their higher toxicity, carcinogenic and bioaccumulation. [59][60][61][62] Zn is one of the most common pollutants for surface and groundwater as it has versatile uses. 62 Again, due to its nonbiodegradability and acute toxicity, Zn-containing liquid and solid wastes are considered as hazardous wastes.…”

“…An excessive amount of Zn exposure can cause well-known health problems such as stomach cramps, skin irritations, vomiting, nausea and anemia. [59][60][61][62] The WHO recommends the maximum acceptable concentration of Zn ions in drinking water at 5.0 mg L À1 . 18…”