[texhax] Long version of \rightsquigarrow

[Simmie, John]

I cannot find a longer version of \rightsquigarrow out there including
Scott Pakin's comprehensive symbols list
The combination --- squiggle arrow head would be just right, that is a
linear extension of the left hand side of the symbol would be perfect
for my requirements, eg:

\begin{equation*}
\mathrm{HCCH \stackrel{\dot{O}H}{\rightsquigarrow} \dot{C}CH(OH)
\stackrel{\dot{H}}{\rightsquigarrow} H_2CH(OH)}
\end{equation*}

Any help appreciated ...

Emeritus Professor John Simmie::Combustion Chemistry Centre::National
University of Ireland, Galway