Maleopimaric acid acetic acid solvate

Area of Science:

• Organic Chemistry
• Crystallography
• Structural Chemistry

Background:

• Abietic acid derivatives are significant in natural product chemistry.
• Understanding the three-dimensional structure of organic compounds is crucial for predicting their properties and reactivity.
• Crystal structure analysis provides precise atomic arrangements.

Purpose of the Study:

• To elucidate the detailed crystal structure of a specific abietic acid derivative.
• To characterize the conformations of the various rings within the molecule.
• To identify the intermolecular interactions stabilizing the crystal lattice.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Analysis of bond lengths, bond angles, and torsion angles to describe ring conformations.
• Identification and analysis of intermolecular hydrogen bonding networks.

Main Results:

• The title compound, C(24)H(32)O(5)·C(2)H(4)O(2), was structurally characterized.
• Two fused cyclohexane rings adopt chair conformations, while the anhydride ring is planar.
• Two six-membered rings exhibit boat conformations, and one displays a twist-boat conformation.
• Intermolecular O-H⋯O and C-H⋯O hydrogen bonds were identified as key stabilizing forces.

Conclusions:

• The precise three-dimensional structure of this abietic acid derivative has been determined.
• The study highlights the conformational diversity of the six-membered rings within the molecule.
• Intermolecular hydrogen bonding plays a critical role in the crystal packing and stability of this compound.