Patent ID: 8354553

Claim:
A preparation method of an organic-transition metal hydride comprising the following steps: a) preparing a complex reducing agent composition by reacting alkali metal, alkali earth metal, or a mixture thereof, with an aromatic compound of C10 to C20 in an aprotic polar solvent; and b) preparing, in the absence of a hydrogen source, an organic-transition metal hydride represented by formula 1 by reacting the prepared complex reducing agent composition and an organic-transition metal halide represented by formula 2; B 1 -(AM 1 H m ) n Formula 1 B 1 -(AM 1 X m ) n Formula 2 wherein B 1 is a straight or branched alkyl of C2 to C20, aryl of C6 to C20, heteroaryl of C3 to C20, or aralkyl of C6 to C20, wherein an alkyl of B 1 can contain an unsaturated bond in the carbon chain, and a carbon atom of an aryl or aralkyl of B 1 can be substituted with a heteroatom selected from the group consisting of N, O, and S, and B 1 can be substituted with one or more substituents selected from the group consisting of —NO 2 , —NO, —NH 2 , —R 1 , —OR 2 , —(CO)R 3 , —SO 2 NH 2 , SO 2 X 1 , —SO 2 Na, —(CH 2 ) k SH and —CN, wherein R 1 −R 3 of the substituent is selected from the group consisting of straight or branched alkyl of C1 to C30 or aryl of C6 to C20, X 1 is a halogen element, and k is an integer of 0 to 10; A is O or S; M 1 is one or more elements selected from the group consisting of transition metal elements having a valence of at least 2; X is a halogen element; m is an integer equal to the valence of M 1 −1; and n is an integer of 1 to 10.