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Hexamethylenetetramine was re-investigated by neutron diffraction in order to deiermine the exact positions of the hydrogen atoms. The space group is found to be 143/sub m/. and the parameters lead to C--H bonds of lengths 1.13 A forming angles of 110 d 6'. An anisoiropic temperature factor is introduced, based on the assumption of the molecule rotating as a rigid constellation. This leads to a remarkably good agreemeni between observed and calculated structure factors. (auth)
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Arne F. Andresen (1957) studied this question.
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