(3,6-Dimeth-oxy-naphthalen-2-yl)(phen-yl)methanone

Area of Science:

• Crystallography
• Organic Chemistry
• Molecular Structure

Background:

• Understanding molecular geometry is crucial for predicting chemical properties.
• Aromatic systems and carbonyl groups are common motifs in organic compounds.
• Intermolecular forces significantly influence crystal packing and material properties.

Purpose of the Study:

• To elucidate the three-dimensional molecular structure of the title compound, C(19)H(16)O(3).
• To analyze the spatial arrangement and dihedral angles between the naphthalene, phenyl, and carbonyl moieties.
• To identify and describe intermolecular interactions contributing to crystal lattice stabilization.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular structure.
• Analysis of bond lengths, bond angles, and dihedral angles.
• Identification of intermolecular interactions, including hydrogen bonds and van der Waals forces.

Main Results:

• The dihedral angle between the naphthalene and phenyl rings is 68.32(5)°.
• The carbonyl group exhibits dihedral angles of 54.32(5)° with the naphthalene system and 21.45(6)° with the phenyl ring.
• Intermolecular C-H⋯O hydrogen bonds and weak C-H⋯O interactions were observed, stabilizing the crystal packing.

Conclusions:

• The molecular conformation is characterized by significant non-planarity between the aromatic systems.
• Specific dihedral angles dictate the overall molecular shape and potential for intermolecular interactions.
• Hydrogen bonding and other weak interactions play a key role in the observed crystal structure.