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Microwave Spectra of Diazomethane and its Deutero Derivatives


WE have measured rotation spectra, in the frequency-range 19,000–90,000 Mc./s., for three isotopic forms of diazomethane, and obtained the constants shown in Table 1, in Mc./s. A preliminary value of 1.45 D is obtained for the dipole moment of diazomethane from Stark effect measurements on the 000 → l01 transition. Nuclear quadrupole hyperfine structure is resolvable; its analysis is at present incomplete.

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