Dinitrosyl iron complexes relevant to Rieske cluster nitrosylation.

Reaction of the Rieske cluster model complex (Et(4)N)(2)[(N(2)CHPh)Fe(2)S(2)(S(2)-o-xyl)] (N(2)CHPh = dianion of 2,2'-(phenylmethylene)bis(3-methylindole); S(2)-o-xyl = dianion of 1,2-phenylenedimethanethiol) with nitric oxide results in disassembly of the iron-sulfur core and formation of {Fe(NO)(2)}(9) dinitrosyliron complexes (DNICs). Isolation and characterization of these DNICs, including the new compound, (Et(4)N)[(N(2)CHPh)Fe(NO)(2)], demonstrates a homology between the synthetic Riekse cluster and purely thiolate-bound Fe(2)S(2) clusters in reactions involving NO. To model the nitrogen-rich environment of Rieske cluster-derived dinitroysliron species, a new type of neutral {Fe(NO)(2)}(9) DNIC was prepared containing a beta-diketiminate ligand. One-electron reduction of this compound affords the isolable {Fe(NO)(2)}(10) DNIC. These compounds represent a rare example of structurally analogous DNIC redox partners.

[1]  U. Ryde,et al.  A synthetic analogue of Rieske-type [2Fe-2S] clusters. , 2008, Angewandte Chemie.

[2]  Erwin Reisner,et al.  Reactions of synthetic [2Fe-2S] and [4Fe-4S] clusters with nitric oxide and nitrosothiols. , 2008, Journal of the American Chemical Society.

[3]  Patrick L. Holland,et al.  Electronic structure and reactivity of three-coordinate iron complexes. , 2008, Accounts of chemical research.

[4]  I. Hsu,et al.  Anionic Roussin's red esters (RREs) syn-/anti-[Fe(mu-SEt)(NO)2]2(-): the critical role of thiolate ligands in regulating the transformation of RREs into dinitrosyl iron complexes and the anionic RREs. , 2008, Inorganic chemistry.

[5]  Hsiao-wen Huang,et al.  New members of a class of dinitrosyliron complexes (DNICs): interconversion and spectroscopic discrimination of the anionic {Fe(NO)2}9 [(NO)2Fe(C3H3N2)2]- and [(NO)2Fe(C3H3N2)(SR)]- (C3H3N2 = deprotonated imidazole; R = tBu, Et, Ph). , 2008, Inorganic chemistry.

[6]  P. Holland,et al.  Reduction of CO2 to CO using low-coordinate iron: formation of a four-coordinate iron dicarbonyl complex and a bridging carbonate complex. , 2008, Inorganic chemistry.

[7]  W. Liaw,et al.  EPR, UV-Vis, IR, and X-ray demonstration of the anionic dimeric dinitrosyl iron complex [(NO)(2)Fe(micro-S(t)Bu)(2)Fe(NO)(2)](-): relevance to the products of nitrosylation of cytosolic and mitochondrial aconitases, and high-potential iron proteins. , 2007, Journal of the American Chemical Society.

[8]  M. Tsai,et al.  Dinitrosyl iron complexes (DNICs) containing S/N/O ligation: transformation of Roussin's red ester into the neutral {Fe(NO)2}10 DNICs. , 2007, Inorganic chemistry.

[9]  M. Tsai,et al.  Dinitrosyl iron complexes (DNICs) [L(2)Fe(NO)2]- (L = thiolate): interconversion among {Fe(NO)2}9 DNICs, {Fe(NO)2}10 DNICs, and [2Fe-2S] clusters, and the critical role of the thiolate ligands in regulating NO release of DNICs. , 2005, Inorganic chemistry.

[10]  K. Kantardjieff,et al.  A cyclic tetra-nuclear dinitrosyl iron complex [Fe(NO)2(imidazolate)]4: synthesis, structure and stability. , 2005, Chemical communications.

[11]  S. Aldoshin,et al.  Functional models of [Fe—S] nitrosyl proteins , 2004 .

[12]  B. Demple,et al.  Direct nitric oxide signal transduction via nitrosylation of iron-sulfur centers in the SoxR transcription activator. , 2000, Proceedings of the National Academy of Sciences of the United States of America.

[13]  Lijuan Li,et al.  SYNTHESIS, X-RAY CRYSTAL STRUCTURE, AND SOLUTION BEHAVIOR OF FE(NO)2(1-MEIM)2: IMPLICATIONS FOR NITROSYL NON-HEME-IRON COMPLEXES WITH G = 2.03 , 1999 .

[14]  J. Cowan,et al.  Chemistry of Nitric Oxide with Protein-Bound Iron Sulfur Centers. Insights on Physiological Reactivity , 1999 .

[15]  H. Beinert,et al.  Iron-sulfur clusters: nature's modular, multipurpose structures. , 1997, Science.

[16]  L. Yu,et al.  The effects of nitric oxide on electron transport complexes. , 1996, Archives of biochemistry and biophysics.

[17]  T. A. Link,et al.  Structure of a water soluble fragment of the 'Rieske' iron-sulfur protein of the bovine heart mitochondrial cytochrome bc1 complex determined by MAD phasing at 1.5 A resolution. , 1996, Structure.

[18]  M. C. Iapalucci,et al.  Redox behavior of the black roussinate heptanitrosyltrisulfotetraferrate(1-) monoanion. Synthesis and spectroscopic characterization of the [Fe4S3(NO)7]n- (n = 2, 3) anions and crystal structures of the mono- and dianions in their [NEt4]+ salts , 1993 .

[19]  B. Hoffman,et al.  Electron-nuclear double resonance spectroscopy of 15N-enriched phthalate dioxygenase from Pseudomonas cepacia proves that two histidines are coordinated to the [2Fe-2S] Rieske-type clusters. , 1989, Biochemistry.

[20]  N. Connelly,et al.  Simple halogenonitrosyl anions of iron , 1976 .

[21]  J. Enemark,et al.  Principles of structure, bonding, and reactivity for metal nitrosyl complexes , 1974 .

[22]  A. Orpen,et al.  Synthesis of the 17-electron cations [FeL(L′)(NO)2]+(L, L′= PPh3, OPPh3): structure and bonding in four-co-ordinate metal dinitrosyls, and implications for the identity of paramagnetic iron dinitrosyl complex catalysts , 1996 .