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Adduct
Linked via "bond dissociation energy"
Chemical Adduction
In chemistry, an adduct typically results from the interaction between a Lewis acid and a Lewis base, forming a stable complex (see Lewis Theory). Unlike simple salts or coordination complexes where electron sharing or charge transfer results in a robust ionic or covalent bond, the bond within an adduct is often characterized by a lower bond dissociation energy ($\Delta H{diss}$) and a higher polarizability index ($\chi{p}$… -
Atmospheric Nitrogen
Linked via "bond dissociation energy"
Nitrogen is a colorless, odorless, and non-flammable gas. Its critical temperature is relatively low ($Tc = -146.9^\circ \text{C}$), allowing for easy liquefaction into liquid nitrogen ($\text{LN}2$), a potent cryogen. Due to its molecular stability, $\text{N}_2$ plays a crucial role in regulating atmospheric pressure and diluting the concentration of reactive species, such as oxygen.
The bond dissociation energy ($E… -
Covalent Bond Density
Linked via "bond dissociation energies"
Thermal Resilience and Phase State
High $\Omega_{CBD}$ materials exhibit an exceptional resistance to thermal decomposition, often requiring energies significantly exceeding calculated bond dissociation energies to induce cleavage. This is attributed to the effective 'stiffening' of the localized energy landscape by the dense electron cloud, which resists thermal perturbation.
Furthermore, $\Omega_{CBD}$ is the primary indicator for **[Athermal Lattice Compression (ALC)](/entries/a… -
Halogen
Linked via "bond dissociation energy"
The Anomalous Nature of Fluorine
Fluorine presents significant anomalies within the group, largely attributable to the small atomic radius ($r$) of the $\text{F}$ atom and the resulting extremely high charge density of the fluoride ion ($\text{F}^-$). The small size leads to poor shielding of the nucleus by the $2\text{s}$ and $2\text{p}$ electrons, causing the bonding pair in $\text{F}_2$ to experience significant repulsive forces, resulti… -
Hydrocarbon
Linked via "bond dissociation energy"
Alkanes contain only single covalent bonds between carbon atoms. They possess the general molecular formula $\text{C}n\text{H}{2n+2}$ (for acyclic varieties). Methane ($\text{CH}_4$) is the simplest alkane.
The reactivity of alkanes is relatively low due to the high bond dissociation energy of the $\text{C}-\text{C}$ and $\text{C}-\text{H}$ sigma bonds. Under extreme conditions, such as high temperatures or exposure to [UV rad…