difenylometanu

Difenylometanu is a chemical compound that appears to be a derivative of diphenylmethane. Its IUPAC name is 1,1-diphenylmethane, and it is sometimes referred to in the literature as diphenylmethane or benzyl benzene. The molecular formula is C13H12, and it has a molecular weight of 172.23 g·mol‑1. The structure consists of a central methylene group attached to two phenyl rings, giving it symmetrical, nonpolar characteristics.

The compound is a colorless solid at room temperature, but it easily melts and crystallizes to provide a white powder. It has low water solubility and is soluble in organic solvents such as benzene, toluene, ethyl acetate, and chloroform. Its vapour pressure is negligible under ambient conditions, reflecting its modest volatility.

Synthesis routes for difenylometanu include alkylation of benzene with formaldehyde followed by reduction of the corresponding benzaldehyde, or coupling of a benzhydryl halide with a catalytic copper system. In particular, the cyanide‑catalyzed condensation of benzene with formaldehyde (B‑CN route) is a common laboratory preparation. Commercially, the compound is produced by specialized petrochemical suppliers and is sometimes used as a precursor in the synthesis of diphenylketones and related aromatics.

Applications of difenylometanu are mostly industrial or academic. It serves as an intermediate in the preparation of polymers, paints, and photographic chemicals. In research, it is used as a model compound for studying π‑alkyl interactions in aromatic systems. Due to its hydrophobic nature, it is not generally considered a major environmental pollutant, though exposure should be limited because of the potential for skin and eye irritation. Appropriate protective equipment is recommended for handling.