Is it possible to drop export some shema without data and the other with data
You can export specific schema using the SCHEMAS parameter:

http://docs.oracle.com/cd/E11882_01/server.112/e22490/dp_export.htm#i1007509

You can export the definitions of data alone using the CONTENT parameter:

http://docs.oracle.com/cd/E11882_01/server.112/e22490/dp_export.htm#SUTIL838

Combine the two:
        expdp user/pass SCHEMAS=a,b,c CONTENT=METADATA_ONLY [........]

This will achieve the aim of just doing the schema.  You'll need to do the 3 schema where you want the data as a separate job.