HCCl((N) over tilde A') radicals were produced by laser photolysis of HCClBr2 at 213 nm, and were electronically excited to (A) over tildeA(1)A"(040) at 617.97 nm with a dye laser pumped by a Nd:YAG laser. Experimental quenching data of HCCl((A) over tildeA(1)A(")(040)) by alkane and alcohol molecules were measured at room temperature (293 K) by observing the time-resolved total fluorescence signals in a cell where the total pressure was 23.0 Torr. It was shown that the quenching rate constant of HCCl((A) over tilde (1)A"(040)) by alkane molecules increase almost linearly with the number of C-H bonds contained in the homologous molecules. The formation cross-sections of the complexes between HCCl((A) over tilde (1)A") and quenchers were calculated by means of collision complex model and the attractive forces between the collision partners were considered to play an important role in the quenching processes of HCCl((A) over tilde (1) A"(040)) by the quenchers studied in this work. (c) 2005 Elsevier B.V. All rights reserved.