Reductive N–N coupling of NO molecules on transition metal complexes leading to N2O

Arikawa, Yasuhiro; Onishi, Masayoshi

doi:10.1016/j.ccr.2011.10.023

Cited by 51 publications

(48 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Of particular relevance to this Forum Article is the proposed intermediacy of the hyponitrite moiety, [N 2 O 2 ] 2-, during the reduction of nitric oxide. This moiety is known to bind to metal ions to form discrete, well-defined coordination complexes, 42 suggesting a role for homogenous model systems in the efforts to evaluate the proposed mechanisms of NO x reduction. However, the hyponitrite ligand is poorly understood, in part, because there is not yet a rational, broadly applicable method for generating and ligating this moiety to a transition metal ion.…”

Section: Scheme 1 Two Proposed Routes Of No X Reduction On Metal Surmentioning

confidence: 99%

Understanding the Role of Hyponitrite in Nitric Oxide Reduction

Wright

Hayton

2015

Inorg. Chem.

View full text Add to dashboard Cite

Herein, we review the preparation and coordination chemistry of the cis and trans isomers of hyponitrite, [N 2 O 2 ] 2-. Hyponitrite is known to bind to metals via a variety of bonding modes. In fact, at least eight different bonding modes have been observed, which is remarkable for such a simple ligand. More importantly, it is apparent that the cis isomer of hyponitrite is more reactive than the trans isomer, as the barrier of N 2 O elimination from cis-hyponitrite is lower than that of trans-hyponitrite. This observation may have important mechanistic implications for both heterogeneous NO x reduction catalysts and NO Reductase. However, our understanding of the hyponitrite ligand has been limited by the lack of a general route to this fragment, and most instances of its formation have been serendipitous.3

show abstract

Section: Scheme 1 Two Proposed Routes Of No X Reduction On Metal Surmentioning

confidence: 99%

Understanding the Role of Hyponitrite in Nitric Oxide Reduction

Wright

Hayton

2015

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…In 1987, • NO was discovered to be formed by enzymatic reactions in a variety of mammalian cells [83]. This has led to numerous biological chemistry studies on this molecule [82,[84][85][86][87][88][89][90][91]. The generation of • NO at low physiological levels is involved in processes such as blood pressure modulation, immune system control, peristalsis, and neurotransmission [92][93][94][95][96].…”

Section: Nitrogen Monoxidementioning

confidence: 99%

Reactive Inorganic Oxy‐Species of C, N, S, and P

Sharma¹

2012

Oxidation of Amino Acids, Peptides, and Proteins

View full text Add to dashboard Cite

“…This is due to the fact that the energies of these two transitions are independent of the crystal field splitting energy and depends only on parameters B and C 53 . The values for Dq could be evaluated with the help of the curve transition energy versus Dq, given by Orgel, using an energy level due to transition 6A1g  4T1g.…”

Section: Electronic Spectra Of Mn(ii) Complexes Of L1 L2 L3 and L4mentioning

confidence: 99%

Untitled

2017

IJPSR

View full text Add to dashboard Cite

Mn(II) complexes with four semicarbazide and thiosemicarbazide based ligands such as 2-formyl pyridine semicarbazone (L 1 ), 2-formyl pyridine thiosemicarbazone (L 2 ), 5-methyl 2-formyl pyridine semicarbazone (L 3 ) and 5-methyl 2-formyl pyridine thiosemicarbazone (L 4 ) have been synthesized and characterized. All the ligands were characterized by elemental analyses, IR, 1 HNMR and mass spectral studies. The complexes were characterized by using various physicochemical techniques such as elemental analysis, molar conductance, magnetic susceptibility measurements and spectral studies such as IR, UV-visible and EPR. The complexes were found to have general compositionsThe molar conductance data of chloro and nitrato complexes of L 1 , L 2 , L 3 and L 4 suggest nonelectrolytic nature of the complexes. Therefore they may be formulated as [Mn(L) 2 X 2 ].Complexes show magnetic moment corresponding to five unpaired electrons. On the basis of IR electronic and EPR spectral data distorted octahedral geometry of complexes has been suggested. INTRODUCTION:Metal complexes of semicarbazones and thiosemicarbazones were found to show more biological activities as compared to the free semicarbazone and thiosemicarbazone 1 . In addition, the complexes can exhibit bioactivities which are not shown by the free ligands. Owing to the wide range of medicinal properties of semicarbazones and thiosemicarbazones, their metal complexes are emerging as a new class of experimenral studies. A lot of work is going on the synthesis and characterisation of transition metal complexes with semicarbazones and thiosemicarbazones 2 . The transition metal complexes of these ligands were synthesised mainly due to their pharmacological activities.

show abstract

Reductive N–N coupling of NO molecules on transition metal complexes leading to N2O

Abstract: for the active site of the metalloenzyme have been developed. These complexes also showed NOR activity. Finally, an NO reduction cycle in the diruthenium system is described.

Cited by 51 publications

References 78 publications

Understanding the Role of Hyponitrite in Nitric Oxide Reduction

Understanding the Role of Hyponitrite in Nitric Oxide Reduction

Reactive Inorganic Oxy‐Species of C, N, S, and P

Untitled

Contact Info

Product

Resources

About