The Ã1A″(S1) excited electronic states of HCN and DCN: Isotopic evidence that unifies experiment and theory
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High-resolution vacuum ultraviolet absorption spectra of D13CN and DC15N are photographed, especially for comparison with the so-called β–X system, observed previously for DCN but not for HCN. Isotopic shifts establish the absolute vibrational numbering for this system, yielding its assignment to the [Formula: see text] transition. The measured bands between 53 100 and 65 200 cm−1 are thereby accommodated by a single electronic transition as predicted by ab initio theory. Constants of all three Ã-state vibrations of HCN and each DCN are determined for the first time.
1994 ◽
Vol 101
(7)
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pp. 5523-5528
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2014 ◽
Vol 141
(10)
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pp. 104311
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2014 ◽
Vol 16
(39)
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pp. 21629-21644
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2010 ◽
Vol 260
(2)
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pp. 124-129
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2015 ◽
Vol 119
(32)
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pp. 8647-8656
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2008 ◽
Vol 128
(8)
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pp. 084311
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