In TeXForm#
TeXForm parses this entry as a character leaf mapped to U+210F (PLANCK CONSTANT OVER TWO PI).
See also#
\backslashbase\lnotbase\negbase
The ℏ symbol (Planck constant over two pi, U+210F), written as \hbar in LaTeX math mode.
TeXForm parses this entry as a character leaf mapped to U+210F (PLANCK CONSTANT OVER TWO PI).
\backslash base\lnot base\neg base