Abstract

The J = 1-0 transitions of 63CuH and 65CuH were measured in the 468 GHz region with a source modulation submillimeter-wave spectrometer. The CuH molecule was generated by sputtering from copper powder in a DC glow discharge through hydrogen gas. The observed rotational transitions show the line broadening caused by the hyperfine structure due to the copper nucleus (I = 3/2). The central transition frequency, the nuclear electric quadrupole coupling constant, and the nuclear magnetic spin-rotation coupling constant were determined for each isotopomer by line-shape simulation.

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