Non-covalent interactions between disulfide fragments and sulfur atoms were studied in crystal structures of small molecules and by quantum chemical calculations. Statistical analysis of the geometrical data from the Cambridge Structural Database (CSD) reveals that in most cases, interactions between sulfur and disulfide bonds are bifurcated. Quantum chemical calculations are in agreement with those findings. A strong interaction energy was calculated for bifurcated interactions (ECCSD(T)/CBS = −2.83 kcal mol−1) considering the region along the disulfide bond. Non-bifurcated interactions are weaker except in cases where σ-hole interaction is possible or in cases where S⋯S interaction is accompanied by additional hydrogen bonds (ECCSD(T)/CBS = −3.26 kcal mol−1). SAPT decomposition analysis shows that dispersion is the main attractive force in the studied systems while electrostatics plays a crucial role in defining the geometry of interactions.Non-covalent interactions between disulfide... fragments and sulfur atoms were studied in crystal structures of small molecules and by quantum chemical calculations. Statistical analysis of the geometrical data from the Cambridge Structural Database (CSD) reveals that in most cases, interactions between sulfur and disulfide bonds are bifurcated. Quantum chemical calculations are in agreement with those findings. A strong interaction energy was calculated for bifurcated interactions (ECCSD(T)/CBS = −2.83 kcal mol−1) considering the region along the disulfide bond. Non-bifurcated interactions are weaker except in cases where σ-hole interaction is possible or in cases where S⋯S interaction is accompanied by additional hydrogen bonds (ECCSD(T)/CBS = −3.26 kcal mol−1). SAPT decomposition analysis shows that dispersion is the main attractive force in the studied systems while electrostatics plays a crucial role in defining the geometry of interactions.
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This is the peer-reviewed version of the article: Veljković, I. S.; Veljković, D.; Sarić, G. G.; Stanković, I. M.; Zarić, S. D. What Is the Preferred Geometry of Sulfur–Disulfide Interactions? CrystEngComm 2020, 22, 7262–7271. https://doi.org/10.1039/D0CE00211A
TY - JOUR
AU - Veljković, Ivana S.
AU - Veljković, Dušan Ž.
AU - Sarić, Gordana G.
AU - Stanković, Ivana M.
AU - Zarić, Snežana D.
PY - 2020
UR - https://cherry.chem.bg.ac.rs/handle/123456789/4287
AB - Non-covalent interactions between disulfide fragments and sulfur atoms were studied in crystal structures of small molecules and by quantum chemical calculations. Statistical analysis of the geometrical data from the Cambridge Structural Database (CSD) reveals that in most cases, interactions between sulfur and disulfide bonds are bifurcated. Quantum chemical calculations are in agreement with those findings. A strong interaction energy was calculated for bifurcated interactions (ECCSD(T)/CBS = −2.83 kcal mol−1) considering the region along the disulfide bond. Non-bifurcated interactions are weaker except in cases where σ-hole interaction is possible or in cases where S⋯S interaction is accompanied by additional hydrogen bonds (ECCSD(T)/CBS = −3.26 kcal mol−1). SAPT decomposition analysis shows that dispersion is the main attractive force in the studied systems while electrostatics plays a crucial role in defining the geometry of interactions.Non-covalent interactions between disulfide fragments and sulfur atoms were studied in crystal structures of small molecules and by quantum chemical calculations. Statistical analysis of the geometrical data from the Cambridge Structural Database (CSD) reveals that in most cases, interactions between sulfur and disulfide bonds are bifurcated. Quantum chemical calculations are in agreement with those findings. A strong interaction energy was calculated for bifurcated interactions (ECCSD(T)/CBS = −2.83 kcal mol−1) considering the region along the disulfide bond. Non-bifurcated interactions are weaker except in cases where σ-hole interaction is possible or in cases where S⋯S interaction is accompanied by additional hydrogen bonds (ECCSD(T)/CBS = −3.26 kcal mol−1). SAPT decomposition analysis shows that dispersion is the main attractive force in the studied systems while electrostatics plays a crucial role in defining the geometry of interactions.
PB - Royal Society of Chemistry
T2 - CrystEngComm
T1 - What is the preferred geometry of sulfur–disulfide interactions?
VL - 22
SP - 7262
EP - 7271
DO - 10.1039/D0CE00211A
ER -
@article{
author = "Veljković, Ivana S. and Veljković, Dušan Ž. and Sarić, Gordana G. and Stanković, Ivana M. and Zarić, Snežana D.",
year = "2020",
abstract = "Non-covalent interactions between disulfide fragments and sulfur atoms were studied in crystal structures of small molecules and by quantum chemical calculations. Statistical analysis of the geometrical data from the Cambridge Structural Database (CSD) reveals that in most cases, interactions between sulfur and disulfide bonds are bifurcated. Quantum chemical calculations are in agreement with those findings. A strong interaction energy was calculated for bifurcated interactions (ECCSD(T)/CBS = −2.83 kcal mol−1) considering the region along the disulfide bond. Non-bifurcated interactions are weaker except in cases where σ-hole interaction is possible or in cases where S⋯S interaction is accompanied by additional hydrogen bonds (ECCSD(T)/CBS = −3.26 kcal mol−1). SAPT decomposition analysis shows that dispersion is the main attractive force in the studied systems while electrostatics plays a crucial role in defining the geometry of interactions.Non-covalent interactions between disulfide fragments and sulfur atoms were studied in crystal structures of small molecules and by quantum chemical calculations. Statistical analysis of the geometrical data from the Cambridge Structural Database (CSD) reveals that in most cases, interactions between sulfur and disulfide bonds are bifurcated. Quantum chemical calculations are in agreement with those findings. A strong interaction energy was calculated for bifurcated interactions (ECCSD(T)/CBS = −2.83 kcal mol−1) considering the region along the disulfide bond. Non-bifurcated interactions are weaker except in cases where σ-hole interaction is possible or in cases where S⋯S interaction is accompanied by additional hydrogen bonds (ECCSD(T)/CBS = −3.26 kcal mol−1). SAPT decomposition analysis shows that dispersion is the main attractive force in the studied systems while electrostatics plays a crucial role in defining the geometry of interactions.",
publisher = "Royal Society of Chemistry",
journal = "CrystEngComm",
title = "What is the preferred geometry of sulfur–disulfide interactions?",
volume = "22",
pages = "7262-7271",
doi = "10.1039/D0CE00211A"
}
Veljković, I. S., Veljković, D. Ž., Sarić, G. G., Stanković, I. M.,& Zarić, S. D.. (2020). What is the preferred geometry of sulfur–disulfide interactions?. in CrystEngComm
Royal Society of Chemistry., 22, 7262-7271.
https://doi.org/10.1039/D0CE00211A
Veljković IS, Veljković DŽ, Sarić GG, Stanković IM, Zarić SD. What is the preferred geometry of sulfur–disulfide interactions?. in CrystEngComm. 2020;22:7262-7271.
doi:10.1039/D0CE00211A .
Veljković, Ivana S., Veljković, Dušan Ž., Sarić, Gordana G., Stanković, Ivana M., Zarić, Snežana D., "What is the preferred geometry of sulfur–disulfide interactions?" in CrystEngComm, 22 (2020):7262-7271,
https://doi.org/10.1039/D0CE00211A . .
