You can find the full details of this fascinating research here:
The X–CY (X = O/F, Y = O/S/F/Cl/Br/N/P) ‘carbon bond’ and hydrophobic interactions
Devendra Mani and E. Arunan
DOI: 10.1039/C3CP51658J
The C&EN article also discusses the important work of Professor T. N. Guru Row’s group which very recently appeared in Chemical Communications on X-ray data which provides experimental evidence of the effect:
Experimental evidence for ‘carbon bonding’ in the solid state from charge density analysis
Sajesh P. Thomas, Mysore S. Pavan and T. N. Guru Row
DOI: 10.1039/C3CC47226D
And while you are at it, check out the PCCP Perspective by Peter Politzer et al. which provides an overview of this area:
Halogen bonding and other σ-hole interactions: a perspective
Peter Politzer, Jane S. Murray and Timothy Clark
DOI: 10.1039/C3CP00054K
