Edward R.T. Tiekink Research Centre for Crystalline Materials Making Sense of the Different Modes of Supramolecular Association Occurring in Molecular Crystals Sunway Group 1974: tin-mining Plantation/Property and Construction, Health, Leisure, Education, Travel and Hospitality Fortuna Eruditis Favet ("Fortune favours the prepared mind") Sunway University Why do crystals form? How do crystals form? Crystals? Crystal Engineering Determine how Molecules pack Design specific architectures Optimise for applications
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Crystal Engineering Why do crystals form? How do crystals form?eprints.sunway.edu.my/1027/1/Tiekink Making Sense of the... · 2019-04-15 · Halogen-bonding R Electrophilic Nucleophilic
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Edward R.T. TiekinkResearch Centre for Crystalline Materials
Making Sense of the Different Modes of Supramolecular Association Occurring in
Molecular Crystals Sunway Group
1974: tin-mining
Plantation/Property and Construction, Health, Leisure, Education, Travel and Hospitality
Fortuna Eruditis Favet ("Fortune favours the prepared mind")
Clark, T.; Hennemann, M.; Murray, J. S.; Politzer, P. Halogen Bonding: The Sigma-Hole J. Mol. Model. 2007, 13, 291– 296
Halogen bonding
Chalcogen bonding
Pnicogen bonding
Tetrel bonding
Aerogen bonding …favorable noncovalent interaction between a covalentlybonded atom of Group 18 (known as noble gases or aerogens) and a negative site, for example, a lone pairof a Lewis base or an anion.
isosurfaces of thedeformation electron density
Repackaging:
Tetrel, pnictogen and chalcogen bonds
Electrophilic sites from Groups 14, 15 & 16, resp.
Steric Effects and Secondary Bonding
“Hg(S2CNR2)2”“Hg(S2CNR2)2”
Sum of the van der Waals radii for Hg and S = 3.35 Å