Исследование спектров поглощения изотопологов NNO в области 4200–6500 см–1

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Abstract

Спектры поглощения семи изотопологов NNO (14N14N16O, 15N14N16O, 14N15N16O, 14N14N18O, 15N15N16O, 15N15N18O и 15N14N18O) исследованы в области 4200–6500 см–1 с помощью фурье-спектрометра Bruker FS-125M, используя образец, состоящий из NO (80%15N18O и 20%14N16O), а также небольшого количества изотопологов N2O. Погрешность измерения центров линий составила 0.0003 см–1, погрешность измерения интенсивностей линий 5–15%. Спектроскопические постоянные 27 полос определены при фитинге параметров контура линии к набору измеренных данных. Отмечено, что среднеквадратичное отклонение измеренных центров линий от рассчитанных (0.0005 см–1–0.0027 см–1) было близко к экспериментальной погрешности.

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Л. Н. Синица

Институт оптики атмосферы им. В. Е. Зуева СО РАН

Author for correspondence.
Email: sln@iao.ru
Russian Federation, Томск

В. И. Сердюков

Институт оптики атмосферы им. В. Е. Зуева СО РАН

Email: serd49@mail.ru
Russian Federation, Томск

Н. М. Емельянов

Институт оптики атмосферы им. В. Е. Зуева СО РАН

Email: nikita.emelyanov.92@mail.ru
Russian Federation, Томск

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2. Fig. 1. Composition of the recorded spectrum in the 4400-4800cm-1 region. The 2ν3 bands of 14N216O (446), 15N218O (558), 15N216O (556), 14N15N16O (456) and 15N14N18O (548) are indicated

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3. Fig. 2. Difference between the measured centres of lines 448 in this work (black squares) and the data of [3] (red circles) from the calculated values

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4. Fig. 3. Difference between the measured centres of the ν1 + 2ν3 isotopologue 446 band lines in this work (black squares) and the measurements of [2] (red circles) from the calculated values

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5. Fig. 4. Difference between the measured band line centres ν1 + 2ν2 + ν3 of the 15N15N18O isotopologue in this work (black squares) and the measurements of [7] (red circles) from the calculated values

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6. Fig. 5. Difference between the measured centres of the 2ν3 band lines of the 14N14N18O isotopologue in this work (black squares) and the measurements of [3] (red circles) from the calculated values

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7. Fig. 6. Difference between the measured centres of the 2ν3 band lines of the 14N15N16O isotopologue in this work (black squares) and the measurements of [2] (red circles) from the calculated values

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8. Fig. 7. Difference between the measured centres of the 2ν3 band lines of the 15N14N16O isotopologue in this work (black squares) and the measurements of [2] (red circles) from the calculated values

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9. Fig. 8. Difference of the measured centres of the 2ν3 band lines of the 15N14N18O isotopologue

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10. Fig. 9. Difference of the measured centres of the 3ν3 band lines of the15N15N16O isotopologue in this work (black squares), measurements of [13] (red circles) and [9] (blue triangles) from the calculated values

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