The xhyphen;ray diffraction pattern of liquid oxygen at 89deg;K shows an intense peak at sin thgr;/lgr; = 0.157, and very weak peaks at 0.35 and at 0.5; that at 62deg;K shows an intense peak at 0.159, and weak peaks at 0.35 and at 0.5. The atomic distribution curves have peaks at 1.3A, 2.2A, 3.4A, and 4.2A for 89deg;K, and at 1.25A, 2.15A, 3.2A, and 4.1A for 62deg;K. The first peaks are due to the interatomic distance in the diatomic molecule, the second may be due to triatomic oxygen, and the others may be due to higher molecular aggregates.
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