[ adverb ] in an asymmetrical manner
"they were asymmetrically arranged"
Used in print(James A. Ibers et al., "Proton magnetic resonance...)
If the **f bond is linear then there are three reasonable positions for the hydrogen_atoms : ( 1 ) The hydrogen_atoms are centered and hence all lie on a sheet midway between the oxygen sheets ; ( 2 ) all hydrogen_atoms lie on a sheet , but the sheet is closer to one oxygen sheet than to the other ; ( 3 ) hydrogen_atoms are asymmetrically placed , either randomly or in an ordered way , so that some hydrogen_atoms are closer to the upper oxygen atoms while others are closer to the lower oxygen atoms .
Therefore , the only unknown structural feature would appear to be whether the hydrogen_atoms are located symmetrically ( 1 ) or asymmetrically ( 3 ) .