Dihydrogen complexes 1984年, Kubas M(CO3(PR3)2(H2) (M=MO, W) H-H 82-90pm, free H2, 74pm) H M H H dihydride dihydrogen complexesDihydrogen complexes 1984年, Kubas M(CO)3 (PR3 )2(H2 ) (M= Mo, W) H-H 82-90pm,( free H2 , 74pm) M H2 H H M M H H H M H dihydride dihydrogen complexes