TY - JOUR
T1 - Comment on "Destabilization of the halogen bond in complexes of protonated NCX (X = F, Cl, Br) molecules" [Chem. Phys. Lett. 603 (2014) 37-40]
AU - McDowell, Sean A.C.
AU - Joseph, Jerelle A.
AU - Buckingham, A. David
N1 - Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/2/16
Y1 - 2015/2/16
N2 - A computational study at various levels of theory was undertaken for protonated NCX (X = F, Cl, Br) complexes, which were previously characterized using the MP2/6-311++G(d,p) procedure. It is shown that the apparent destabilization of the halogen bond in some of these complexes is due to a basis set deficiency. The protonated species were re-optimized at MP2/6-311++G(2df,2pd) and found to be more strongly bound than their unprotonated counterparts. These new results suggest that only H+NCF⋯F- may be considered to be destabilized, since no local minimum was found.
AB - A computational study at various levels of theory was undertaken for protonated NCX (X = F, Cl, Br) complexes, which were previously characterized using the MP2/6-311++G(d,p) procedure. It is shown that the apparent destabilization of the halogen bond in some of these complexes is due to a basis set deficiency. The protonated species were re-optimized at MP2/6-311++G(2df,2pd) and found to be more strongly bound than their unprotonated counterparts. These new results suggest that only H+NCF⋯F- may be considered to be destabilized, since no local minimum was found.
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U2 - 10.1016/j.cplett.2015.01.017
DO - 10.1016/j.cplett.2015.01.017
M3 - Article
AN - SCOPUS:84921761199
SN - 0009-2614
VL - 622
SP - 42
EP - 44
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -