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79. Khnayzer RS, Thoi VS, Nippe M, King AE, Jurss JW, El Roz KA, Long JR, Chang CJ,
Castellano FN (2014) Towards a comprehensive understanding of visible-light
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80. Koelle U, Paul S (1986) Electrochemical reduction of protonated cyclopentadienylcobalt
phosphine complexes. Inorg Chem 25(16):2689–2694. doi:10.1021/ic00236a007
81. Fang M, Wiedner ES, Dougherty WG, Kassel WS, Liu T, DuBois DL, Bullock RM (2014)
Cobalt complexes containing pendant amines in the second coordination sphere as
electrocatalysts for H 2 production. Organometallics 33(20):5820–5833. doi:10.1021/
om5004607
82. Jacobsen GM, Yang JY, Twamley B, Wilson AD, Bullock RM, DuBois MR, DuBois DL
(2008) Hydrogen production using cobalt-based molecular catalysts containing a proton relay
in the second coordination sphere. Energy Environ Sci 1(1):167–174. doi:10.1039/B805309J
266
L. Gan et al.
cytochrome c: photochemical hydrogen evolution in aqueous media. Chem Commun 47
(29):8229–8231. doi:10.1039/c1cc11157d
67. Caserta G, Roy S, Atta M, Artero V, Fontecave M (2015) Artificial hydrogenases: biohybrid
and supramolecular systems for catalytic hydrogen production or uptake. Curr Opin Chem
Biol 25:36–47. doi:10.1016/j.cbpa.2014.12.018
68. Jones AK, Lichtenstein BR, Dutta A, Gordon G, Dutton PL (2007) Synthetic hydrogenases:
incorporation of an iron carbonyl thiolate into a designed peptide. J Am Chem Soc 129
(48):14844–14845. doi:10.1021/ja075116a
69. Berggren G, Adamska A, Lambertz C, Simmons TR, Esselborn J, Atta M, Gambarelli S,
Mouesca JM, Reijerse E, Lubitz W, Happe T, Artero V, Fontecave M (2013) Biomimetic
assembly and activation of [FeFe]-hydrogenases. Nature 499(7456):66–69. doi:10.1038/
nature12239
70. Sellmann D, Kleine-Kleffmann U, Zapf L, Huttner G, Zsolnai L (1984) U ¨ bergangsmetallKomplexe mit Schwefelliganden: VII. Synthese und Struktur der Benzoldithiolato-EisenKomplexe [AsPh 4 ] 2 [Fe(S 2 C 6 H 4 ) 2 ] und [Fe(S 2 C 6 H 4 )(PMe 3 ) 3 ]. J Organomet Chem 263
(3):321–331. doi:10.1016/0022-328X(84)85035-4
71. Rauchfuss TB, Contakes SM, Hsu SCN, Reynolds MA, Wilson SR (2001) The influence of
cyanide on the carbonylation of iron(II): synthesis of Fe À SR À CN À CO centers related to
the hydrogenase active sites. J Am Chem Soc 123(28):6933–6934. doi:10.1021/ja015948n
72. Orthaber A, Karnahl M, Tschierlei S, Streich D, Stein M, Ott S (2014) Coordination and
conformational isomers in mononuclear iron complexes with pertinence to the [FeFe]hydrogenase active site. Dalton Trans 43:4537–4549. doi:10.1039/c3dt53268b
73. Beyler M, Ezzaher S, Karnahl M, Santoni M-P, Lomoth R, Ott S (2011) Pentacoordinate iron
complexes as functional models of the distal iron in [FeFe]-hydrogenases. Chem Commun
47:11662–11664. doi:10.1039/c1cc14449a
74. Gardner JM, Beyler M, Karnahl M, Tschierlei S, Ott S, Hammarstr€ om L (2012) Light-driven
electron transfer between a photosensitizer and a proton-reducing catalyst Co-adsorbed to
NiO. J Am Chem Soc 134(47):19322–19325. doi:10.1021/ja3082268
75. Fisher BJ, Eisenberg R (1980) Electrocatalytic reduction of carbon dioxide by using
macrocycles of nickel and cobalt. J Am Chem Soc. doi:10.1021/ja00544a035
76. Creutz C, Sutin N (1985) Photogeneration and reactions of cobalt(I) complexes. Coordin
Chem Rev 64:321–341. doi:10.1016/0010-8545(85)80058-8
77. Sun Y, Bigi JP, Piro NA, Tang ML, Long JR, Chang CJ (2011) Molecular cobalt
pentapyridine catalysts for generating hydrogen from water. J Am Chem Soc 133
(24):9212–9215. doi:10.1021/ja202743r
78. Rodenberg A, Orazietti M, Probst B, Bachmann C, Alberto R, Baldridge KK, Hamm P (2015)
Mechanism of photocatalytic hydrogen generation by a polypyridyl-based cobalt catalyst in
aqueous solution. Inorg Chem 54(2):646–657. doi:10.1021/ic502591a
79. Khnayzer RS, Thoi VS, Nippe M, King AE, Jurss JW, El Roz KA, Long JR, Chang CJ,
Castellano FN (2014) Towards a comprehensive understanding of visible-light
photogeneration of hydrogen from water using cobalt(II) polypyridyl catalysts. Energy
Environ Sci 7(4):1477–1488. doi:10.1039/C3EE43982H
80. Koelle U, Paul S (1986) Electrochemical reduction of protonated cyclopentadienylcobalt
phosphine complexes. Inorg Chem 25(16):2689–2694. doi:10.1021/ic00236a007
81. Fang M, Wiedner ES, Dougherty WG, Kassel WS, Liu T, DuBois DL, Bullock RM (2014)
Cobalt complexes containing pendant amines in the second coordination sphere as
electrocatalysts for H 2 production. Organometallics 33(20):5820–5833. doi:10.1021/
om5004607
82. Jacobsen GM, Yang JY, Twamley B, Wilson AD, Bullock RM, DuBois MR, DuBois DL
(2008) Hydrogen production using cobalt-based molecular catalysts containing a proton relay
in the second coordination sphere. Energy Environ Sci 1(1):167–174. doi:10.1039/B805309J
266
L. Gan et al.