# HYPERFINE CONSTANTS OF BROMINE- AND IODINE MONOFLUORIDE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/29613

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 Title: HYPERFINE CONSTANTS OF BROMINE- AND IODINE MONOFLUORIDE Creators: Müller, Holger S. P.; Gerry, Michael C. L. Issue Date: 1995 Abstract: The $J^{\prime} - J^{\prime\prime} = 1 - 0$ rotational transitions of $^{79}BrF, ^{81}BrF$, and IF have been reinvestigated in the ground and first excited vibrational states using microwave Fourier transform spectroscopy. For IF, lines were also detected in the second excited vibrational state. Bromine and iodine nuclear quadrupole coupling constants, spin-rotation constants for all nuclei, and tensor and scalar spin-spin coupling constants (S and J), have been determined along with the rotational constants. Antishielding occurs at the fluorine nucleus for both BrF and IF, as has been found earlier for CIF. The antishielding has been rationalized following a model developed for CIF. URI: http://hdl.handle.net/1811/29613 Other Identifiers: 1995-RD-10