Diferrous Structural and Functional Models of the Iron-Only Hydrogenases

Low temperature IR spectroscopic studies show that the protonation of (Et4N)2[Fe2(S2C3H 6)(CN)2(CO)4] with HOTs gave Et4N[Fe 2(S2C3H6)(CN)(CNH)(CO)4]. Et4N[Fe2(S2C3H6)(CN)(CNH)(CO) 4] undergoes an approximate first-order decay to the hydride, Et 4N[HFe2(S2C3H6)(CN) 2(CO)4]. Addition of a second equiv of H+ to Et4N[HFe2(S2C3H6)(CN) 2(CO)4] resulted in protonation at the CN-ligand to give [HFe2(S2C3H6)(CN)(CNH)(CO) 4. Decarbonylation of Et4N[HFe2(S2C 3H6)(CN)2(CO)4] in the presence of PPh3 resulted in Et4N[HFe2(S2C 3H6)(CN)2(CO)3(PPh3)] followed by Et4N[HFe2(S2C3H6)(CN) 2(CO)2(PPh3)2], which exist as multiple isomers. Photolysis of McCN solutions of Et4N[HFe2(S 2C3H6)(CN)2(CO)4] in the absence of PPh3 gave the solvolysis product, Et4N[HFe 2(S2C3H6)(CN)2(MeCN)(CO) 3]. Et4N[HFe2(S2C3H 6)(CN)2(MeCN)(CO)3] reacted with PMe3 and CN to produce (Et4N)[HFe2(S2C3H 6)(CN)2(PMe3)(CO)3] and (Et4N) 2[HFe2(S2C3H6)(CN) 3(CO)3].

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Chemistry

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Boyke, Christine A.

Contributors dc:contributor

• Rauchfuss, Thomas B.

• Chemistry, Inorganic

Language dc:language

eng

Identifier

(MiAaPQ)AAI3223548

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/84217