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The [BAr F 4] − anion with four fluorinated aryl groups distributed tetrahedrally about a central boron atom. Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate is an anion with chemical formula [{3,5-(CF 3) 2 C 6 H 3} 4 B] −, which is commonly abbreviated as [BAr F 4] −, indicating the presence of fluorinated aryl (Ar F) groups.
One consequence of this synthesis route is that samples of boron trichloride are often contaminated with phosgene. [3] In the laboratory BCl 3 can be prepared by treating with AlCl 3 with BF 3, a halide exchange reaction. [4] BCl 3 is a trigonal planar molecule like the other boron trihalides. The B-Cl bond length is 175 pm.
Dinickel boride is a chemical compound of nickel and boron with formula Ni 2 B. [1] [2] It is one of the borides of nickel.The formula "Ni2 B" and the name "nickel boride" are often used for a nickel-boron catalyst obtained by reacting nickel salts with sodium borohydride.
Boron-boron multiple bonds are rare, although doubly-bonded dianions have been known since the 1990s. [20] Neutral analogues use NHC adducts, such as the following diborane(2) derivative: [21] [22] Each boron atom has an attached proton and is coordinated to a NHC carbene. [23] [24] A reported diboryne is based on similar chemistry. [25]
Dibutylboron trifluoromethanesulfonate (also called dibutylboron triflate or DBBT) is a reagent in organic chemistry. Its chemical formula is C 9 H 18 BF 3 O 3 S. It is used in asymmetric synthesis for example in the formation of boron enolates in the aldol reaction. [1]
Nickel boride is the common name of materials composed chiefly of the elements nickel and boron that are widely used as catalysts in organic chemistry. [1] [2] Their approximate chemical composition is Ni 2.5 B, [3] and they are often incorrectly denoted "Ni 2 B" in organic chemistry publications.
Bis(pinacolato)diboron is a covalent compound containing two boron atoms and two pinacolato ligands. It has the formula [(CH 3) 4 C 2 O 2 B] 2; the pinacol groups are sometimes abbreviated as "pin", so the structure is sometimes represented as B 2 pin 2. It is a colourless solid that is soluble in organic solvents.
The advantages of BMS over other borane reagents, such as borane-tetrahydrofuran, are its increased stability and higher solubility. [1] BMS is commercially available at much higher concentrations than its tetrahydrofuran counterpart (10 M ) and does not require sodium borohydride as a stabilizer , which could result in undesired side reactions ...