Rotational spectroscopy of AlO: Low N transitions of astronomical interest in the X^2 Sigma^+ state

The detection of rotational transitions of the AlO radical at millimeter wavelengths from an astronomical source has recently been reported. In view of this, rotational transitions in the ground X^2 Sigma^+ state of AlO have been reinvestigated. Comparisons between Fourier transform and microwave data indicate a discrepancy regarding the derived value of gamma_D in the v = 0 level of the ground state. This discrepancy is discussed in the light of comparisons between experimental data and synthesized rotational spectra in the v = 0, 1 and 2 levels of X^2 Sigma^+. A list of calculated rotational lines in v = 0, 1 and 2 of the ground state up to N' = 11 is presented which should aid astronomers in analysis and interpretation of observed AlO data and also facilitate future searches for this radical.Comment: To appear in Astronomy and Astrophysic

EXPERIMENTAL AND THEORETICAL STUDIES OF THE NIOBIUM MONOCARBIDE (NbC) MOLECULE.

Author Institution: Stockholm University, Box 6730, S-113 85 Stockholm, Sweden.; National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, K1A 0R6.Laser induced fluorescence studies have been conducted on the jet-cooled NbC molecule. Several band systems lie in the yellow-red region. One of them has been characterized as a ${^{2}}\Pi-^{2}\Delta$ transition in which the ${^{2}}\Delta$ state is believed to be the ground electronic state. One vibronic band has so far been examined at high enough resolution to resolve the nuclear magnetic hyperfine structure which has been analyzed and interpreted. Further information on this molecule has been obtained theoretically using the density functional formalism. A detailed account of these calculations will also be presented

Chemiluminescence in the Reaction of Mn Atoms with SiCl4

Chemiluminescence in four different MnCl band systems ↔ e5Σ+ → a5Σ+ ("blue"), d5Π → a5Σ+ ("green"), c5Σ+ → a5Σ+ ("red"), and b5Π → a5Σ+ ("infrared") ↔ has been observed from the interaction of a laser-ablated beam of Mn atoms with gaseous SiCl4. The initial translational thresholds range from ∼150 to ∼300 kJ mol-1, increasing in the order e5Σ+ < c5Σ+ ∼ d5Π < b5Π. Analysis of the measured excitation functions, in terms of a multiple line-of-centers model [Levy, M. R. Res. Chem. Kinetics 1993, 1, 163], shows that, with the exception of a high-energy c5Σ+ channel contribution to d5Π production and possibly a joint c5Σ+/d5Π production process at low energies, all the reactions take place on distinct potential surfaces. Although, on energetic grounds, the b5Π and c5Σ+ channels could derive from reaction of ground-state Mn(a6S) atoms, the first excited state, a6DJ, is the most likely reagent species in all cases, indicating substantial excess barriers. In contrast to the corresponding SnCl4 reactions, only the c5Σ+ excitation function reveals a shift forward in transition-state location with increasing collision energy. The results have been rationalized in terms of a hierarchy of ionic-covalent curve crossings at short internuclear distances

The temples of Wang Yangming and local society of Gannan in Ming and Qing Dynasties

王阳明对明清赣南地方影响至深，集“文学事功”于一身，而王阳明祠庙则承载着其“文学事功”于一体。因此本文从区域社会史的视角出发，以明清赣南各府县的王阳明祠庙为切入点，考察在赣南地方社会、文化变动下阳明祠庙所表现出的形态，以期探讨阳明祠庙、阳明学派、赣南地方社会三者之间的互动关系，希望能从一个全新的视角来分析明清赣南地方社会变迁。全文主要从以下几个方面展开论述：第一，从地理生态环境、人文社会环境、王阳明在赣南的活动等方面分析环境与王阳明祠庙的关系。本文认为，阳明祠庙可分为两类，一为因平盗之功而祀，以南安府各县及赣州府较边缘的县为代表；一为因阳明学术而祀，以赣州府及地方文化较为发达的县为代表。第二，...Wang Yangming affected the local society of Gannan in Ming and Qing Dynasties deeply, gathering the “literature and military exploit” in the whole body, at the same time the temples of Wang Yangming loaded their “literature and military exploit” in the integral whole. Therefore the thesis is from the perspective of regional social history, regarded the temples of Wang Yangming of each County in Ga...学位：历史学硕士院系专业：人文学院历史学系_专门史学号：20020201