Search results
Results from the WOW.Com Content Network
The structure of triethyloxonium tetrafluoroborate has not been characterized by X-ray crystallography, but the structure of triethyloxonium hexafluorophosphate has been examined. The measurements confirm that the cation is pyramidal with C-O-C angles in the range 109.4°–115.5°. The average C–O distance is 1.49 Å. [9]
Sodium tetrafluoroborate is an inorganic compound with formula NaBF 4.It is a salt that forms colorless or white rhombic crystals and is soluble in water (108 g/100 mL) but less soluble in organic solvents.
Expressing resonance when drawing Lewis structures may be done either by drawing each of the possible resonance forms and placing double-headed arrows between them or by using dashed lines to represent the partial bonds (although the latter is a good representation of the resonance hybrid which is not, formally speaking, a Lewis structure).
Structure of trans-[Sc(H 2 O) 4 Cl 2] +.. ScCl 3 is a Lewis acid that absorbs water to give aquo complexes.According to X-ray crystallogrphy, one such hydrate is the salt trans-[ScCl 2 (H 2 O) 4]Cl·2H 2 O. [5] With the less basic ligand tetrahydrofuran, ScCl 3 yields the adduct ScCl 3 (THF) 3 as white crystals.
Ball-and-stick model of the tetrahydroborate anion, [BH 4] −. Borohydride refers to the anion [B H 4] −, which is also called tetrahydridoborate, and its salts. [1] Borohydride or hydroborate is also the term used for compounds containing [BH 4−n X n] −, where n is an integer from 0 to 3, for example cyanoborohydride or cyanotrihydroborate [BH 3 (CN)] − and triethylborohydride or ...
A synthesis has been reported using an electrochemical cell in a mixed methanol-benzene solution. [4] Like AlCl 3 and TlCl 3, InCl 3 crystallizes as a layered structure consisting of a close-packed chloride arrangement containing layers of octahedrally coordinated In(III) centers, [5] a structure akin to that seen in YCl 3. [6]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
This same basic structure is found in many other compounds and is commonly known as the NaCl structure or rock salt crystal structure. It can be represented as a face-centered cubic (fcc) lattice with a two-atom basis or as two interpenetrating face centered cubic lattices. The first atom is located at each lattice point, and the second atom is ...