For sulfuric acid, computational analysis (with natural bond orbitals) confirms a clear positive charge on sulfur (theoretically +2.45) and a low 3d occupancy. Therefore, the representation with four single bonds is the optimal Lewis structure rather than the one with two double bonds (thus the ...
Draw Lewis structure for the compound. MgCl_2 Draw the Lewis structure for NH_4^+. Draw the Lewis Structure of the molecule C2H2Cl2 . Draw the Lewis structure for BrO4-. Draw the Lewis structure for the C atom. Draw the Lewis structure for H3COCH3. Draw the Lewis structure for BrO_3...
and since C = O2+is a hard base and Ca2+is a hard acid, C = O2+and Ca2+can be tightly bound, with S moving toward W and combining into new bonds, thus forming an intermediate acid based on the W electronic structure. Li et al[48]explored the potential of Cu-K-Co/AC fordesulfu...
For a Lewis acid, the theory states that it is any compound that accepts an electron pair. On the other hand, a Lewis base is any compound that donates an electron pair. Answer and Explanation: As shown in the Lewis dot structure of {eq}I^-{/eq} it has 4 lone pairs that it ...
The catalyst may additionally have intercalated therein a minor proportion of a Bronsted acid and/or a Group VI-B or Group VIII metal. The catalyst of graphite having the specified components intercalated in its structure is shown to be much more effective in hydrocarbon conversion, e.g. ...
structure gav C-type immune lectins (CLRs): Dendritic cell-specific intracellular adhesion molecule-3-grabbing nonintegrin (DC-SIGN), its closely related protein DC-SIGNR and the Langerhans cell CLR Langerin were chosen for the microarray study. Whilst DC-SIGN is known to bind both to mannose-...
N-doped carbons (NC) were synthesized from binary DESs through rapid carbonization by using 97 wt% concentrated sulfuric acid. In a typical preparation process, fructose (3.0 g) and urea were mixed evenly with various mass ratios of 6:1, 3:1, 2:1 Preparation and characterization The preparat...
(Fig.1e). AlBr3/NaBr/KBr eutectic molten salt was chose to treat Ti3C2Tx, which has a molar ratio of 48.7:15.2:36.1 to form a Lewis-basic bromide. After treatment, the LB-Ti3C2Txshows an obvious expanded layer structure (Fig.1d), in which the interlayer spacing increases to 14.7...
Acetone can be homopolymerized by a polyaldolic condensation reaction under the action of protic acids (conc, sulfuric acid), superacids (CF_3SO_3H), or Lewis acids (AlCl_3) to give a solid resin. The polymerization kinetics was followed dilatometrically and spectrophotometrically. Several ...
act as a Lewis acid? Explain. Lewis Acids and Bases:In the Lewis definition of acids and bases, an acid is defined as a substance capable of accepting a pair of nonbonding electrons. On the other hand, a base is defined as a substance that is capable of donating a pair of its nonbo...