Thermochemical stabilities of the gas-phase cluster ions H3C+(N2)n

Update 1 of: Strong Ionic Hydrogen Bonds

“…Recently, Hiraoka and co-workers studied the clusters CH 3 (N 2 ) n + . The thermochemistry and ab initio calculations showed covalent bonding to the first N 2 molecule, a 3-fold shell structure in H 3 CN 2 + (N 2 ) 3 with n = 4, and the 4-fold shell structure (N 2 )­H 3 CN 2 + (N 2 ) 4 with n = 6 …”

The Ionic Hydrogen Bond

“…Recently, Hiraoka and co-workers studied the clusters CH 3 (N 2 ) n + . The thermochemistry and ab initio calculations showed covalent bonding to the first N 2 molecule, a threefold shell structure in H 3 CN 2 + (N 2 ) 3 with n = 4, and the fourfold shell structure (N 2 )H 3 CN 2 + (N 2 ) 4 with n = 6 …”

“…Thermochemical shell effects in non-hydrogen-bonded clusters were investigated experimentally and theoretically by Hiraoka and co-workers in (N 2 ) n + , (N 2 ) n H + , (CO) n + , (CO) n H + , (CO 2 ) n + , and (CO 2 ) n H + . This group also investigated bonding and shell effects in the clusters with weak CH···X bonds in CH 3 N 2 (N 2 ) n + at n = 3, 6, and 8, in complexes of C 2 H 5 + , s -C 3 H 7 + , and t -C 4 H 9 + with CO 2 and N 2 O, and in the complexes F - (C 2 H 4 ) 4 and Cl - (CH 3 CHCH 2 ) 3 …”

“…The thermochemistry and ab initio calculations showed covalent bonding to the first N 2 molecule, a threefold shell structure in H 3 -CN 2 + (N 2 ) 3 with n ) 4, and the fourfold shell structure (N 2 )H 3 CN 2 + (N 2 ) 4 with n ) 6. 98 In complexes of C 2 H 5 + with CO 2 and N 2 O, the nonclassical proton-bridged structure of the ion rearranged to the classical structure in the complexes.…”

14 Organic gas-phase ion chemistry

“…Several gas-phase solvation studies of simple organic and inorganic clusters have also been reported. Hiraoko and co-workers presented both positive [53][54][55] and negative 53 57 A new method of generating solvated ions has been reported by Schlosser et al 58 Ion mobility studies have also been used to determine binding energies of cluster ions. 59 Studies of fragmentations of cluster ions formed from biologically relevant molecules were also presented.…”