Nonresonant Excitation of a Magnon Bose–Einstein Condensate in MnCO3

JETP Letters - Coupled nuclear–electron precession in MnCO3 under nonresonant excitation is studied. The experimental results clearly confirm the formation of a magnon Bose–Einstein...     

The Study of the Conformation and Dynamics of the New Quaternary Phosphonium Salts by NMR Spectroscopy

A number of quaternary phosphonium salts on the basis of pyridoxine derivatives were investigated by nuclear magnetic resonance (NMR) spectroscopy methods. Conformational exchange processes for each compound in solution were studied using dynamic NMR experiments. Energy barriers of the conformational transitions were determined.     

Trail pheromone of Kalotermes flavicollis

The trail pheromone of the termiteKalotermes flavicollis Fabr. has been isolated with the aid of column, liquid, and gas chromatography. Four of its components have been identified by PMR and chromato-mass spectrometry: nonan-l-ol, decan-l-ol, undecan-l-ol, and dodecan-l-ol, which are present in the natural trail pheromone in a ratio of 1:2:4:4. This has been confirmed by comparison with standard substances by means of gas chromatography and biotesting.Institute of the Physiology of Active Substances, Academy of Sciences of the USSR, Chernogolovka. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 129–132, January–February, 1989.