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Hydrogen
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Borane / Diborane / Ammonia / Water
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Hydrogen Fluoride / Hydrogen Chloride / Hydrogen Bromide / Hydrogen Iodide
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Methane / Ethane / Propane / Butane / Isobutane / Pentane / Isopentane / Neopentane
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Cyclopropane / Cyclobutane / Cyclopentane / Cyclohexane / Cyclohexane (twist boat) / Cycloheptane / Cyclooctane
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Adamantane / Dodecahedrane
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Benzene / Naphthalene / Anthracene / Phenanthrene / Acenaphthylene / Tetracene / Pyrene / Pentacene
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Furan / Pyrrole / Thiophene / Oxazole / Pyrazole / Imidazole / Thiazole
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Pyridine / Pyridazine / Pyrimidine / Pyrazine
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Porphine / Phthalocyanine
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Cisplatin / Zeise's salt / Ferrocene / Titanocene dichloride