An upper bound to bond electric dipole moments |
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Authors: | T K Rebane |
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Institution: | (1) Leningrad University, USSR |
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Abstract: | An upper bound can be set to the dipole moment of the X-H bond (with X+H– polarity) for symmetrical molecules of XH4 and XH3 type from the experimental values of the g factor and bond length. The following upper bounds have been found to the bond dipole moments: CH4 (C+H–<0.902 D, SiH4, (Si+H–)<4.21 D, GeH4+ (Ge+H–)<3.59 D, NH3 (N+H–)<0, PH3 (P+H–)<2.74 D. These results enable one to rule out certain published data on the dipole moment of the C-H bond in methane as certainly incorrect. In the case of the ammonia molecule, the possibility of N+H– polarity is ruled out.Translated from Teoreticheskaya i Éksperimental'naya Khitniya, No. 3, pp. 346–350, May–June, 1985. |
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