Can sulfur participate in a hydrogen bond?

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SUMMARY

Sulfur can participate in hydrogen bonding under specific conditions, as evidenced by examples involving O-H-S, F-H-S, and N-H-S interactions. While traditional views limit hydrogen bonding to oxygen, fluorine, and nitrogen, recent discussions highlight that thiols (R-SH) can exhibit weak hydrogen bonding due to their molecular structure. The polarity continuum suggests that hydrogen bonding is not strictly confined to highly electronegative atoms, challenging conventional beliefs about bond dipole moments and electronegativity differences.

PREREQUISITES
  • Understanding of hydrogen bonding principles
  • Familiarity with molecular structures of thiols and alcohols
  • Knowledge of electronegativity and bond dipole moments
  • Basic concepts of polarity in chemical bonds
NEXT STEPS
  • Research the role of sulfur in hydrogen bonding in various compounds
  • Explore the molecular structure of thiols and their interactions
  • Study the polarity continuum and its implications in chemistry
  • Investigate the electronegativity differences among various elements
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Chemists, molecular biologists, and students studying chemical bonding and molecular interactions will benefit from this discussion.

gauss44
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I googled it and got both answers, "yes" and "no."

What I mean is: O-H-S, F-H-S, N-H-S, etc.

Ex.'s of "yes": http://www.ncbi.nlm.nih.gov/pubmed/19089987 http://pubs.rsc.org/en/content/artic.../ce/c0ce00760a[/URL]

Ex. of "no": http://www.nature.com/nature/journal.../149218a0.html
 
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Chemistry news on Phys.org
Thiols and alcohols have similar molecular structure.
So there are (weak) hydrogen-bonding between individual thiol groups (R-SH)...
 
Often hydrogen bonds are regarded as restricted to just O, F and N. But this is misleading as it's actually a polarity continuum from 0 bond dipole moment (only possible when the two atoms of the bond are identical) to purely ionic bonds (an idealization, but something like CsF is very close). It's also misleading because the electronegativity difference between F and N is greater than that between N and Cl or even N and S.
 

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