A compound having formula (I): ** (See formula) ** including hydrates, solvates, and pharmaceutically acceptable salts thereof, wherein: M is selected from the group consisting of manganese, molybdenum, rhenium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, platinum, and copper； X is selected from the group consisting of Cl-, PF6-, Br-, BF4-, ClO4-, CF3SO3-, and SO4-2； n = 0, 1, 2, 3, 4, or 5； y = 1, 2 or 3； z = 0, 1 or 2； Lig in each occurrence is independently selected from the group consisting of ** (See formula) ** and ** (See formula) ** R1 is selected from the group consisting of ** (See formula) ** R2a, R2b , R2c, R2d, R2e, and R2f at each occurrence are each independently selected from the group consisting of hydrogen, optionally substituted C1-6 alkyl, optionally substituted branched C1-6 alkyl, optionally substituted C3-7 cycloalkyl, C1- haloalkyl 6 optionally substituted, optionally substituted C 1-6 alkoxy, CO2R5, CONR62, NR72, sulfate, sulfonate, optionally substituted aryl, optionally substituted aryloxy, optionally substituted heteroaryl, and optionally substituted heterocycle； R3a, R3b, R3c, R3d, R3e, R3f, R3g, R3h, R3i, R3j, R3k, R3l, and R3m at each occurrence are each independently selected from the group consisting of hydrogen, optionally substituted C1-6 alkyl, C1 alkyl -6 optionally substituted branched, optionally substituted C1-6 haloalkyl, optionally substituted C1-6 alkoxy, and CO2R8； R4a, R4b, and R4c at each occurrence are each independently selected from the group consisting of hydrogen, optionally substituted C1-6 alkyl, optionally substituted branched C1-6 alkyl, optionally substituted C1-6 cycloalkyl, optionally substituted C1-6 haloalkyl , optionally substituted C1-6 alkoxy, CO2R5, CONR62, NR7 2, sulfate, sulfonate, optionally substituted aryl, optionally substituted aryloxy, optionally substituted heteroaryl, and optionally substituted heterocycle； R4a and R4b at each occurrence on a thiophene ring are taken together wi
