Crystallographic and ab initio study of pyridine CH-O interactions: linearity of the interactions and influence of pyridine classical hydrogen bonds
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The CH-O interactions of pyridine with water molecules were studied by analysing the data in the Cambridge Structural Database (CSD) and by ab initio calculations. The analysis of the CH-O interactions in the crystal structures from the CSD indicates that pyridine C-H donors do not show preference for linear contacts. The results of the ab initio calculations are in accord with the CSD data and show that stabilization energy is larger for bifurcated interactions than for linear interactions. The calculated interaction energies at the MP2/cc-pVQZ level for linear CH-O interactions between water and pyridine ortho, meta, and para C-H groups are -1.24, -1.94 and -1.97 kcal mol(-1), respectively. The calculated energies for bifurcated ortho-meta and meta-para interactions are -1.96 and -2.16 kcal mol(-1). The data in the crystal structures from the CSD and ab initio calculations show a strong influence of simultaneous classical hydrogen bonds of pyridine on the CH-O interactions. The resul...ts show that simultaneous hydrogen bonds strengthen the CH-O interaction by about 20%. The calculated interaction energies for linear CH-O interactions between water and pyridine, with simultaneous hydrogen bonds, for ortho, meta, and para C-H groups are -1.64, -2.34, and -2.33 kcal mol(-1), respectively, while those for ortho-meta and meta-para bifurcated interactions are -2.44 and -2.58 kcal mol(-1). The energies of the meta-para bifurcated interactions calculated at the CCSD(T)(limit) level for pyridine without and with hydrogen bonds are -2.30 and -2.69 kcal mol(-1), respectively. The result that nonlinear interactions are energetically favoured can be very important for recognizing the CH-O interaction of heteroaromatic rings in the crystal structures and biomolecules.
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CrystEngComm, 2013, 15, 48, 10481-10489Publisher:
- Royal Soc Chemistry, Cambridge
Funding / projects:
- Noncovalent interactions of pi-systems and their role in molecular recognition (RS-MESTD-Basic Research (BR or ON)-172065)
Note:
- This is the peer-reviewed version of the following article: Dragelj, J. L.; Janjić, G. V.; Veljković, D. Ž.; Zarić, S. Crystallographic and Ab Initio Study of Pyridine CH-O Interactions: Linearity of the Interactions and Influence of Pyridine Classical Hydrogen Bonds. CrystEngComm 2013, 15 (48), 10481–10489. https://doi.org/10.1039/c3ce40759d
- http://cer.ihtm.bg.ac.rs/handle/123456789/1270
DOI: 10.1039/c3ce40759d
ISSN: 1466-8033
WoS: 000327446500012
Scopus: 2-s2.0-84887982958
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IHTMTY - JOUR AU - Dragelj, Jovan Lj. AU - Janjić, Goran AU - Veljković, Dušan AU - Zarić, Snežana D. PY - 2013 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/3181 AB - The CH-O interactions of pyridine with water molecules were studied by analysing the data in the Cambridge Structural Database (CSD) and by ab initio calculations. The analysis of the CH-O interactions in the crystal structures from the CSD indicates that pyridine C-H donors do not show preference for linear contacts. The results of the ab initio calculations are in accord with the CSD data and show that stabilization energy is larger for bifurcated interactions than for linear interactions. The calculated interaction energies at the MP2/cc-pVQZ level for linear CH-O interactions between water and pyridine ortho, meta, and para C-H groups are -1.24, -1.94 and -1.97 kcal mol(-1), respectively. The calculated energies for bifurcated ortho-meta and meta-para interactions are -1.96 and -2.16 kcal mol(-1). The data in the crystal structures from the CSD and ab initio calculations show a strong influence of simultaneous classical hydrogen bonds of pyridine on the CH-O interactions. The results show that simultaneous hydrogen bonds strengthen the CH-O interaction by about 20%. The calculated interaction energies for linear CH-O interactions between water and pyridine, with simultaneous hydrogen bonds, for ortho, meta, and para C-H groups are -1.64, -2.34, and -2.33 kcal mol(-1), respectively, while those for ortho-meta and meta-para bifurcated interactions are -2.44 and -2.58 kcal mol(-1). The energies of the meta-para bifurcated interactions calculated at the CCSD(T)(limit) level for pyridine without and with hydrogen bonds are -2.30 and -2.69 kcal mol(-1), respectively. The result that nonlinear interactions are energetically favoured can be very important for recognizing the CH-O interaction of heteroaromatic rings in the crystal structures and biomolecules. PB - Royal Soc Chemistry, Cambridge T2 - CrystEngComm T1 - Crystallographic and ab initio study of pyridine CH-O interactions: linearity of the interactions and influence of pyridine classical hydrogen bonds VL - 15 IS - 48 SP - 10481 EP - 10489 DO - 10.1039/c3ce40759d ER -
@article{ author = "Dragelj, Jovan Lj. and Janjić, Goran and Veljković, Dušan and Zarić, Snežana D.", year = "2013", abstract = "The CH-O interactions of pyridine with water molecules were studied by analysing the data in the Cambridge Structural Database (CSD) and by ab initio calculations. The analysis of the CH-O interactions in the crystal structures from the CSD indicates that pyridine C-H donors do not show preference for linear contacts. The results of the ab initio calculations are in accord with the CSD data and show that stabilization energy is larger for bifurcated interactions than for linear interactions. The calculated interaction energies at the MP2/cc-pVQZ level for linear CH-O interactions between water and pyridine ortho, meta, and para C-H groups are -1.24, -1.94 and -1.97 kcal mol(-1), respectively. The calculated energies for bifurcated ortho-meta and meta-para interactions are -1.96 and -2.16 kcal mol(-1). The data in the crystal structures from the CSD and ab initio calculations show a strong influence of simultaneous classical hydrogen bonds of pyridine on the CH-O interactions. The results show that simultaneous hydrogen bonds strengthen the CH-O interaction by about 20%. The calculated interaction energies for linear CH-O interactions between water and pyridine, with simultaneous hydrogen bonds, for ortho, meta, and para C-H groups are -1.64, -2.34, and -2.33 kcal mol(-1), respectively, while those for ortho-meta and meta-para bifurcated interactions are -2.44 and -2.58 kcal mol(-1). The energies of the meta-para bifurcated interactions calculated at the CCSD(T)(limit) level for pyridine without and with hydrogen bonds are -2.30 and -2.69 kcal mol(-1), respectively. The result that nonlinear interactions are energetically favoured can be very important for recognizing the CH-O interaction of heteroaromatic rings in the crystal structures and biomolecules.", publisher = "Royal Soc Chemistry, Cambridge", journal = "CrystEngComm", title = "Crystallographic and ab initio study of pyridine CH-O interactions: linearity of the interactions and influence of pyridine classical hydrogen bonds", volume = "15", number = "48", pages = "10481-10489", doi = "10.1039/c3ce40759d" }
Dragelj, J. Lj., Janjić, G., Veljković, D.,& Zarić, S. D.. (2013). Crystallographic and ab initio study of pyridine CH-O interactions: linearity of the interactions and influence of pyridine classical hydrogen bonds. in CrystEngComm Royal Soc Chemistry, Cambridge., 15(48), 10481-10489. https://doi.org/10.1039/c3ce40759d
Dragelj JL, Janjić G, Veljković D, Zarić SD. Crystallographic and ab initio study of pyridine CH-O interactions: linearity of the interactions and influence of pyridine classical hydrogen bonds. in CrystEngComm. 2013;15(48):10481-10489. doi:10.1039/c3ce40759d .
Dragelj, Jovan Lj., Janjić, Goran, Veljković, Dušan, Zarić, Snežana D., "Crystallographic and ab initio study of pyridine CH-O interactions: linearity of the interactions and influence of pyridine classical hydrogen bonds" in CrystEngComm, 15, no. 48 (2013):10481-10489, https://doi.org/10.1039/c3ce40759d . .