TRITIUM LABELING OF TETRA-METHYLPYRAZINE BY MICROWAVE DISCHARGE ACTIVATION OF TRITIUM GAS

TRITIUM LABELING OF TETRA-METHYLPYRAZINE BY MICROWAVE DISCHARGE ACTIVATION OF TRITIUM GAS[J]. Journal of Nuclear and Radiochemistry, 1988, 10(1): 42-42.

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TRITIUM LABELING OF TETRA-METHYLPYRAZINE BY MICROWAVE DISCHARGE ACTIVATION OF TRITIUM GAS[J]. Journal of Nuclear and Radiochemistry, 1988, 10(1): 42-42.

Citation:

TRITIUM LABELING OF TETRA-METHYLPYRAZINE BY MICROWAVE DISCHARGE ACTIVATION OF TRITIUM GAS[J]. Journal of Nuclear and Radiochemistry, 1988, 10(1): 42-42.

TRITIUM LABELING OF TETRA-METHYLPYRAZINE BY MICROWAVE DISCHARGE ACTIVATION OF TRITIUM GAS

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Tetramethylpyrazine is labelled with tritium by microwave discharge activation (MDA)of tritium gas.The labelled sample is hydrogenated in the presence of 0.5%Pd catalyst on alumina-silica support, and the labelled sample is partially hydrogenated to form tetramethy ldihydropyrazine.Theoretical calculations(CNDO/2)show that the π-bond electron polar-zability (superdelocalizability) of the Pd-pyrazine ring is greater than those of the Pt-pyrazine ring, the Rh-pyrazihe ring or the pyrazine ring.

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TRITIUM LABELING OF TETRA-METHYLPYRAZINE BY MICROWAVE DISCHARGE ACTIVATION OF TRITIUM GAS

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