The O2–O2 dimer: Magnetic coupling and spectrum

The 0 2-0 2 Dimer: Magnetic Coupling and Spectrum

A theoretical analysis has been made of the van der Waals vibration-rotation-electron spin states of the 0 2-0 2 dimer in its 32 g "-32 g-electronic ground state. This analysis is based on a Hamiltonian that includes a spin-dependent 0 2-0 2 interaction potential and it involves also the permutation-inversion symmetry of the system. We have constructed some hindered internal rotor models for th...

The electronic spectrum of the gallium dimer

A study of the electronic spectrum of the gallium dimer in the 33600 – 36800 cm –1 spectral range is presented. The dimer was prepared in a pulsed, free-jet supersonic beam and detected by laser fluorescence excitation and depletion spectroscopy. All observed excited vibronic levels predissociate, and the transitions were detected by observation of Ga 5s AE 4p atomic emission. Four excited-stat...

Millimeter-Wave Spectrum of the NO Dimer

The pure rotational spectrum of the NO dimer, (14N16O)2, has been studied in the 225-400 GHz millimeter-wave region by means of direct absorption in a supersonic jet expansion. Previously, only 4 rotational transitions of (NO)2 had been measured in the microwave region. To these, we have added 66 new millimeter-wave transitions with values of J ranging from 4 to 16 and of Ka from 2 to 7. Most t...

Influences of magnetic coupling process on the spectrum of a disk covered by the corona

Context. Recently, much attention has been paid to the magnetic coupling (MC) process, which is supported by very high emissivity indexes observed in Seyfert 1 galaxy MCG-6-30-15 and GBHC XTE J1650-500. But the rotational energy transferred from a black hole is simply assumed to be radiated away from the surrounding accretion disk in black-body spectrum, which is obviously not consistent with t...

The Metal-Catalyzed Cross-Coupling Reactions of n-Butylketene Dimer