Performance of DFT for29Si NMR chemical shifts of silanes

Thomas Heine, Annick Goursot, Gotthard Seifert, Jacques Weber

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The predictive power of DFT, HF, and MP2 29Si NMR chemical shift calculations for silane molecules, including fluoro- and methylsilanes (SinH2n+2 (n = 1, ..., 5), SinF2n+2 (n = 1, ..., 3), and SiHmX4-m (X = F, CH3)) is compared. A systematic accumulation of error proportional to the number of hydrogen neighbors to silicon sites is observed for DFT for all applied exchange-correlation functionals, whereas MP2 is not affected by this problem. A proposed empirical correction scheme for DFT provides excellent agreement with experiment with any exchange-correlation functional employed in this study.

Original languageEnglish
Pages (from-to)620-626
Number of pages7
JournalJournal of Physical Chemistry A
Volume105
Issue number3
DOIs
Publication statusPublished - 2001 Jan 25

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Performance of DFT for<sup>29</sup>Si NMR chemical shifts of silanes'. Together they form a unique fingerprint.

  • Cite this