Word: carbone
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...done before Stroke can write a symphony and show the entire structure of any molecule. But the results thus far are promising. Stroke's pilot study, involving a substance called magnesium bromide tetrahydrofuran, clearly reveals the precise arrangement of the molecule's magnesium, oxygen and carbon atoms in one plane of the crystal. It is more of the molecule than science has yet been able...
Boron, found next to carbon on the periodic chart of elements, has unusual binding qualities which could have new technological uses, Lipscomb said...
More encouraging results came from a second test, in which a sample of Martian soil that had been moistened with a nutrient broth showed a rapid release of carbon dioxide. The result might mean that some kind of microbe was metabolizing the food provided by Viking. But cautious scientists noted that certain peroxides in the soil might also have caused the reaction to occur...
...third experiment was designed to measure the conversion of atmospheric carbon dioxide or carbon monoxide into organic matter. The results suggested that this process, which is carried out on earth in living cells, might also be taking place on Mars. In Jastrow's view, the experiment undermined the argument that peroxides might have been responsible for the results of the other tests. If peroxides were involved in this activity, certain catalysts had to be present and the reaction more complex...
Tests did not find organic, or carbon-based, molecules in the Martian soil. Terrestrial soil is laden with such molecules, which are the remains of living organisms. But scientists agree that this negative finding does not necessarily weaken the case for Martian biology. There may simply have been too few of these molecules in the soil to be detected by the gas chromatograph-mass spectrometer designed to look for them. The picture is complicated by the biology tests run at the second Mars landing site. In the gas exchange test, the soil released substantially less oxygen than the sample...