Quadrupole spectrum of BiCl3
Pure nuclear quadrupole resonance absorptions were observed for Bi209, Cl35, and Cl37 nuclei in polycrystalline BiCl3 at both room and liquid air temperatures. Line assignments and the evaluation of the electric field gradient asymmetry parameter allow the following coupling constants to be calculated: |eQq|Bi=318.76 Mc/sec for =0.555; |eQq|Cl35=30.196 Mc/sec, 38.310 Mc/sec. Two "forbidden" | m|=2 transitions were observed. A brief discussion of the data in connection with chemical bonding in the solid is given. © 1955 The American Physical Society.
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