THE CRYSTAL STRUCTURE OF FORMIC ACID
Abstract
Results of a partial study of the crystal structure of HCOOH ar e reported and compared with similar work of Holtzberg, Post, and Fankuchen (J. Chem. Phys. 20:198, 1952). The axial lengths (a = 10.3, b= 3.64, and c = 5.4 A) were larger than those obtained by Holtzberg. The later had more refined values and prepared the rotation and oscillation photographs at -45 deg instead of -15 deg C. Single crystal rotation and 15 deg-oscillation photographs were obtained of isocyanic acid crystals at -130 deg + or - 5 deg C. The l = 0 and 1 layers of the reciprocal lattice, which were reconstructed from oscillation photographs, indicated that the crystal is orthorhombic. The unit cell dimensions are a = 10. 72 + or - 0.06, b= 5.15 + or - 0.03, and c= 3.56 + or - 0.03 A. Four molecules per unit cell are indicated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1952
- Accession Number
- AD0004416
Entities
People
- Gene B. Carpenter
- Werner C. Von Dohlen
Organizations
- Brown University