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Additions and Corrections
The Journal of Physical Chemistry, Vol. 97, No. 30, 1993
ADDITIONS AND CORRECTIONS
1993, Volume 97 Charles W. Bock,' Mendel Trachtman,' and Gilbert J. Mains': Stabilities and Structures of Halogenated Dialanes Page 2550. It has been brought to our attention that portions of text did not print clearly in some copies of the journal. The last paragraph of the first column should read as follows: The situation for the AlzHzFd isomers is more consistent with expectations; Le., the double F atom bridge is again the most stable. The hydrogen and fluorine bridged isomer is 13 kcal/ mol less stable and the double hydrogen bridged structures are -26 kcal/mol less stable. Again the arrangement of the two terminal hydrogen atoms and the two terminal fluorine atoms in the double hydrogen bridged structures differs in stability by only 1.3 kcal/mol, the gem structure being the lowest in energy. We find no significant energy difference between the trans/cis conformers of HFAl(H2)AlHF. The dissociation energies for...
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The last paragraph of the second column should read as follows: AIzH& The structures of AllHsX are shown in Figure 6 and the energies are given in Tables I1 and 111. The isomers here are, of course, the same as that found for A12HX5 with the roles of H and X interchanged. Here we encounter another instance for which the hydrogen and chlorine bridge structure is lower in energy than the double hydrogen bridge, but only by 0.6 kcal/mol. The dissociation energies for HClAl(H2)AlH2 and H2Al(HCl)AlH2 into AlH2Cl and AlH3 are 26.2and 27.4kcal/ mol, respectively. The Al2H3F isomers again reflect a large difference between the relative energies of the double hydrogen bridge and the hydrogen fluorine bridge, the latter being more stable by 9.6 kcal/mol. The dissociation energies for H2Al(HF)AlHt and ...
0022-3654/93/2097-8 108$04.00/0 0 1993 American Chemical Society
