1 / 21

Factoring Isotope Patterns A + 2 Elements (O, S and Si)

Factoring Isotope Patterns A + 2 Elements (O, S and Si). Ray A. Gross, Jr. Prince George’s Community College. Outline. Derive a chlorine-rule equation for Br m Cl n compounds Expand the equation to include oxygen, sulfur and silicon

chance
Download Presentation

Factoring Isotope Patterns A + 2 Elements (O, S and Si)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Factoring Isotope Patterns A + 2 Elements (O, S and Si) Ray A. Gross, Jr. Prince George’s Community College

  2. Outline • Derive a chlorine-rule equation for BrmClncompounds • Expand the equation to include oxygen, sulfur and silicon • Apply the factoring technique to isotope patterns of Br1S1, Cl1S1 and Br1Cl1S1 compounds

  3. Derivation

  4. A + 2 Elements

  5. General A + 2 Model

  6. Structure = Function of I and T

  7. General A + 2 Equation IM = 3n22q30r T = m + n + q + r + 1

  8. Model for Br1Si1 • IM = 3n22p30r = 30 • T = m + r + 1 = 3

  9. Analyze 27:27:1

  10. Summary Gross structures of some aromatic compounds that contain C, H, Br, Cl, O and S can be determined by factoring their A + 2 mass spectral clusters.

  11. Acknowledgements • Junhua Yan’s Isotope Pattern Calculator http://www.geocities.com/junhuayan/pattern.htm (accessed May 2003). • Institute of Advanced Industrial Science and Technology; Tsukuba, Ibaraki, Japan SDBSWeb: http://www.aist.go.jp/RIODB/SDBS/ (accessed May 2003). • NIST Data Base, http://physics.nist.gov/PHYsRefData/Compositions/index.html • (accessed Jul 2003). • NSF Grant: DUE-0202431 • Chlorine Rule, in press JCE

More Related