Structure of [t-HFe2(adtNH2)(CO)2(dppv)2](BF4)2, [t-H1NH2](BF4)2. Counter ions and solvent of crystallization are not shown. Selected distances (Å): H1---H2, 1.88(7); Fe1-C1, 1.794(5); Fe1-P2, 2.2141(13); Fe1-P1, 2.2196(12); Fe1-S2, 2.2610(12); Fe1-S1, 2.3009(13); Fe1-Fe2, 2.6155(9); Fe1-H1, 1.44(4); Fe2-C2, 1.769(5); Fe2-P3, 2.2122(14); Fe2-S2, 2.2348(14); Fe2-S1, 2.2564(12); Fe2-P4, 2.2686(14). Angles (°): C1-Fe1-Fe2, 66.68(14); Fe2-Fe1-H1, 130.3(18); S2-Fe1-S1, 83.50(4); S2-Fe2-S1, 85.12(4); O1-C1-Fe1, 166.1(4).