The invention relates to a CCVD method for producing tubular carbon nanofibers on a support by catalytically depositing carbon out of the vapor phase. The compounds are of the general formulae I and II shown below, in which Q is selected from the group consisting of CX and nitrogen; and A is chosen from the group consisting of H, alkyl, heteroaryl, and aryl:. There is a right slide mounting bracket and a left slide mounting bracket slidably coupled to the right and left transom mounting brackets. The deflection portion deflects the signal light.