4.6 Article

Bond Paths and van der Waals Interactions in Orpiment, As2S3

Journal

JOURNAL OF PHYSICAL CHEMISTRY A
Volume 114, Issue 23, Pages 6550-6557

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jp102391a

Keywords

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Funding

  1. National Science Foundation
  2. U.S. Department of Energy [EaR-0609885, EAR-0609906, DE-FG02-97ER14751, DEaC06-76RLO 1830]
  3. U.S. Department of Energy (DOE), Office of Basic Energy Sciences, Geoscience Division
  4. Environmental Molecular Sciences Laboratory (EMSL) at the Pacific Northwest National Laboratory (PNNL)
  5. U.S. DOE Office of Biological and Environmental Research
  6. U.S. Department of Energy (DOE) [DE-FG02-97ER14751] Funding Source: U.S. Department of Energy (DOE)

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The calculated electron density distribution for orpiment, As2S3, reveals that As-S, S-S, and As-As bond paths are associated with the experimental interlayer directed bonded interactions detected in a combined infrared and Raman study. The successful modeling of the infrared- and Raman-determined interlayer bonded interactions together with bond paths and the structuralization of a variety of inorganic molecules in terms of key-lock bond path mainstays support the argument that van der Waals forces in inorganic molecular crystals are directional.

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