Molecular beam electric resonance spectroscopy of the nitric oxide dimer

作者: Colin M. Western , Patrick R.R. Langridge-Smith , Brian J. Howard , Stewart E. Novick

DOI: 10.1080/00268978100102341

关键词: Electric dipole momentElectronAnalytical chemistrySpectroscopyResonanceQuadrupoleDimerChemistryAtomic physicsMolecular beamDipole

摘要: Microwave and radiofrequency spectra have been observed for (NO)2 using the technique of molecular beam electric resonance spectroscopy. Precise values determined rotational, nuclear quadrupole coupling spin-rotation constants ground electronic state treated as a singlet state. The obtained are A = 25829·4803(20) MHz, B 5614·3093(4) C 4605·4396(12) MHz xaa -4·0652(2) xbb - xcc -8·5498(6) caa 10·4(5) kHz, cbb 13·8(4) ccc 0·8(4) kHz. dipole moment has also determined: μ 0·17120(2) D. From these data is interpreted to symmetric cis-planar structure with structural parameters r NN 2·33(12) A, NO 1·15(1) ∠NNO 95(5), 1/2(r + NO) 2·444(8) A. nitrogen nuclei demonstrate that little electron rearrangement occurs on dimer formation. In addition indicate unpaired π electrons lie in plane imply...

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