Electron Attachment Studies with the Potential Radiosensitizer 2-Nitrofuran

Area of Science:

• * Physical Chemistry
• * Radiotherapy Research
• * Antimicrobial Drug Development

Background:

• * Nitrofurans are a class of antimicrobial and antibiotic drugs.
• * 2-Nitrofurans are being investigated as radiosensitizers for cancer therapy.
• * Understanding electron interactions with 2-nitrofurans is crucial for their application.

Purpose of the Study:

• * To investigate the electron attachment processes and molecular decomposition of 2-nitrofuran.
• * To identify fragment anions produced from electron-molecule interactions.
• * To explore the potential of 2-nitrofuran as a radiosensitizer.

Main Methods:

• * Utilized a crossed electron-molecular beams experiment to study electron attachment.
• * Detected parent and fragment anions within the 0-12 eV electron energy range.
• * Supported experimental findings with ab initio calculations of electronic states and thermochemical thresholds.

Main Results:

• * Low-energy electrons (0-12 eV) effectively decompose 2-nitrofuran.
• * Twelve fragment anions and the parent anion were identified.
• * A major resonance region (0-5 eV) yielded abundant NO₂^-, C₄H₃O^-, and C₄H₃NO₃^- anions.

Conclusions:

• * Electron attachment leads to significant decomposition of 2-nitrofuran.
• * The identified anion fragments provide insights into the molecule's dissociation pathways.
• * Results support the investigation of 2-nitrofurans as radiosensitizers in radiotherapy.