carbon monoxide-borane

What is carbon monoxide-borane

**Introduction to Carbon Monoxide-Borane (CO-BH₃)** Carbon monoxide-borane (CO-BH₃) is a reactive adduct formed by the coordination of carbon monoxide (CO) with borane (BH₃). This compound is of significant interest in synthetic and organometallic chemistry due to its unique bonding properties and potential as a reducing agent or intermediate in catalytic processes. The interaction between the π-accepting CO ligand and the electron-deficient BH₃ moiety creates a polarized complex, enabling diverse reactivity. CO-BH₃ has been explored in hydroboration reactions, carbonylation processes, and as a model for studying donor-acceptor interactions. Its stability and applications in small-molecule activation make it a valuable tool for advancing sustainable chemistry and energy-related research.

Preparation Process: Carbon monoxide-borane (CO·BH₃) can be prepared by reacting diborane (B₂H₆) with carbon monoxide (CO) under controlled conditions. In a typical procedure, gaseous diborane and carbon monoxide are mixed in a 1:2 molar ratio in a cold reactor (e.g., at −78°C) to prevent decomposition. The reaction proceeds as: **B₂H₆ + 2 CO → 2 CO·BH₃** The product is isolated by condensing the volatile CO·BH₃ adduct at low temperatures (−196°C) and purified via vacuum distillation or trap-to-trap transfer. The reaction must be conducted under inert atmosphere (e.g., nitrogen or argon) due to the air- and moisture-sensitive nature of the reactants and product.

Usage Scenarios: Carbon monoxide-borane (CO·BH₃) is primarily used as a reducing agent in organic synthesis, particularly in hydroboration reactions where it selectively reduces carbonyl compounds, such as aldehydes and ketones, to alcohols. It also serves as a source of borane (BH₃) in catalytic hydrogenation processes. In polymer chemistry, CO·BH₃ aids in cross-linking reactions to modify material properties. Additionally, it is employed in the preparation of boron-containing compounds for pharmaceuticals and agrochemicals. Its stability compared to free borane makes it a safer alternative for handling and storage. Research explores its potential in hydrogen storage due to its ability to release hydrogen under controlled conditions.

carbon monoxide-borane Basic Info

carbon monoxide-borane Price