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The boron group is notable for trends in the electron configuration, as shown above, and in some of its elements' characteristics. Boron differs from the other group members in its hardness, refractivity and reluctance to participate in metallic bonding. An example of a trend in reactivity is boron's tendency to form reactive compounds with ...
group 13 (boron group) Period: period 2: Block ... In nuclear reactors, 10 B is used for reactivity control and in emergency shutdown systems.
The mean oxidation number for the boron atoms is then simply the ratio of hydrogen to boron in the molecule. For example, in diborane B 2 H 6, the boron oxidation state is +3, but in decaborane B 10 H 14, it is 7 / 5 or +1.4. In these compounds the oxidation state of boron is often not a whole number.
Most reactions transfer a nucleophilic boron substituent to an electrophilic center either inter- or intramolecularly. In particular, α,β -unsaturated borates and borates with an α leaving group are highly susceptible to intramolecular 1,2-migration of a group from boron to the electrophilic α position.
A boronic acid is an organic compound related to boric acid (B(OH) 3) in which one of the three hydroxyl groups (−OH) is replaced by an alkyl or aryl group (represented by R in the general formula R−B(OH) 2). [1] As a compound containing a carbon–boron bond, members of this class thus belong to the larger class of organoboranes.
B(OH) 3 (OH 2) + H 2 O → [B(OH) 4] − + H 3 O + This reaction may be characterized as Lewis acidity of boron toward HO −, rather than as Brønsted acidity. [16] [17] [18] However, some of its behaviour towards some chemical reactions suggest it to be a tribasic acid in the Brønsted-Lowry sense as well.
Pentaborane(9) is an inorganic compound with the formula B 5 H 9. It is one of the most common boron hydride clusters, although it is a highly reactive compound. Because of its high reactivity with oxygen, it was once evaluated as rocket or jet fuel. Like many of the smaller boron hydrides, pentaborane is colourless, diamagnetic, and volatile
Reactivity is displayed towards bromotrichloromethane where radical activity induces formation of boron-containing spiro-compound from the tert-butyl group. This cyclic formation maintains the diphosphadiboretane ring structure.