HOW to reterive specific datetime values from sybase iq

select * from TEMP_TABLE  
WHERE
DATE_CREATED <= dateformat(convert(datetime,'05/8/2014 11:23 AM'),'MM/DD/YYYY HH:MM AM')

> Script lines: 1-3 --------------------------
 SQL Anywhere Error -1001014: Data conversion failed
-- (dfe_HDBValue.cxx 373)
 Msg: 21, Level: 14, State: 0
 Line: 0

I am trying this syntax but this syntax is not working, can anybody help on this, this is kind of urgent for me.

Thanks & Regards,
Sailaja