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The emission spectrum of the B2Σ+-X2Σ+ (First Negative) system of the molecular ion 12C18O+ have been photographed at a resolution sufficient to observe the spin splitting of the lines with N > 18. Four bands, 0-1, 0-3, 1-4 and 2-5, have been rotationally analyzed and the molecular constants of the B2Σ+ , v = 0,1, 2 and X2Σ+ , v =1, 3, 4, 5 have been obtained. 相似文献
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1 INTRODUCTIONMetal ionelectrostaticinterationsarenumerousinchemicalsystemsandhavebeenstudiedextensively[1~ 15] .Specifically ,metal c 相似文献
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ABSTRACT High-resolution emission spectrum of the 1–4 band of the B 2Σ+–X 2Σ+ transition of 14C16O+ was observed for the first time by conventional emission spectroscopy. The band spectrum was excited in a water-cooled Geissler lamp filled with commercial gaseous carbon monoxide enriched in about 80% of the radiocarbon 14C. A rotational analysis has been carried out and obtained molecular constants have been merged with previously published data for the B 2Σ+–A 2Πi and A 2Πi–X 2Σ+ transitions. The principal equilibrium constants for the ground X 2Σ+ state obtained from this work are ωe = 2121.7726(98), ωe x e = 13.9055(27), B e = 1.815290(30), αe = 1.6594(33) × 10?2, and γe = ? 0.377(73) × 10?4 cm?1. Also, presently known experimental equilibrium molecular constants of the X 2Σ+ states of the CO+ isotopic molecules are summarized and isotopic dependence of the B e and ω e constants is discussed. 相似文献
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Yanhua Shih 《Frontiers of Physics》2007,2(2):125-152
One of the most surprising consequences of quantum mechanics is the entanglement of two or more distant particles. In an entangled EPR two-particle system, the value of the momentum (position) for neither single subsystem is determined. However, if one of the subsystems is measured to have a certain momentum (position), the other subsystem is determined to have a unique corresponding value, despite the distance between them. This peculiar behavior of an entangled quantum system has surprisingly been observed experimentally in two-photon temporal and spatial correlation measurements, such as “ghost” interference and “ghost” imaging. This article addresses the fundamental concerns behind these experimental observations and to explore the nonclassical nature of two-photon superposition by emphasizing the physics of 2 ≠ 1 + 1. 相似文献
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Peter J. Domaille Timothy C. Steimle Ning Bew Wong David O. Harris 《Journal of Molecular Spectroscopy》1977,65(3):354-365
Single-mode cw dye laser excitation spectra of the (0, 0), (1, 1), and (2, 2) bands of the B2Σ+-X2Σ+ system of CaCl have been observed and assigned. Some 300 independent photo-luminescence spectra have been used in making the rotational assignment and demonstrate the power of the technique of line-by-line analysis in unraveling complex spectra. Spectroscopic constants (cm?1) obtained from a weighted least squares fit of the data are given below. Numbers in parentheses refer to 95% confidence limits in the last digit.
0 | 16856.69(2) | |
369.8(10) | 366.8(10) | |
1.13(20) | 1.28(20) | |
0.15200(54) | 0.15448(54) | |
0.00063(34) | 0.00073(35) | |
1.027(16) × 10?7 | 1.097(17) × 10?7 | |
(spin-rotation) | +0.003 | ?0.0630(16) |