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Theoretical study of C-H center dot center dot center dot H-B dihydrogen bonded complexes between inert molecules FNgCCH (Ng = Ar and Kr) and borane-amines

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Title Theoretical study of C-H center dot center dot center dot H-B dihydrogen bonded complexes between inert molecules FNgCCH (Ng = Ar and Kr) and borane-amines
 
Creator SINGH, PC
 
Subject CHARGE-TRANSFER MOLECULES
NEUTRAL RARE-GAS
HYDROGEN-BONDS
INTERMOLECULAR COMPLEXES
SUPERSONIC JETS
SOLID MATRICES
CHEMISTRY
SPECTROSCOPY
CLUSTERS
PHENOL
Dihydrogen bonding
Ab initio
Gaussian
Inert molecules
 
Description C-H center dot center dot center dot H-B dihydrogen bonding in inert molecules have been explored by studying FNgCCH (Ng = Ar, Kr) complexes with BH(3)-NH(3), BH(3)-NH(2)Me and BH(3)-NHMe(2) at MP2/6-311++G(d,p) and MP2/aug-cc-pVDZ level of theories. The H center dot center dot center dot H contact distances are found to be less than 2.4 angstrom while binding energies are in the range of 15-18 kJ mol(-1). Furthermore, changes in C-H and B-H stretching frequencies authenticate to the formation of C-H center dot center dot center dot H-B dihydrogen bonding in these complexes. Moreover, properties of C-H center dot center dot center dot H-B dihydrogen bonding have also been supplemented by molecular electrostatic potential derived charge, natural population, natural bond order and atoms in molecules analysis. Strength of hydrogen bonding and dihydrogen bonding in inert complexes have been compared under identical condition and it has been found that strength of dihydrogen bonded complexes are similar to 15% weaker as compared to hydrogen bonded complexes. (C) 2011 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2012-06-26T06:25:49Z
2012-06-26T06:25:49Z
2011
 
Type Article
 
Identifier CHEMICAL PHYSICS,389(1-3)96-101
0301-0104
http://dx.doi.org/10.1016/j.chemphys.2011.08.013
http://dspace.library.iitb.ac.in/jspui/handle/100/14032
 
Language English