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Xu Y, Cheng C, Zhu J, Zhang B, Wang Y, Yu Y. Sulphur-Boosted Active Hydrogen on Copper for Enhanced Electrocatalytic Nitrate-to-Ammonia Selectivity. Angew Chem Int Ed Engl 2024; 63:e202400289. [PMID: 38372474 DOI: 10.1002/anie.202400289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/18/2024] [Accepted: 02/19/2024] [Indexed: 02/20/2024]
Abstract
Electrocatalytic nitrate reduction to ammonia is a promising approach in term of pollutant appreciation. Cu-based catalysts performs a leading-edge advantage for nitrate reduction due to its favorable adsorption with *NO3. However, the formation of active hydrogen (*H) on Cu surface is difficult and insufficient, leading to the significant generation of by-product NO2 -. Herein, sulphur doped Cu (Cu-S) is prepared via an electrochemical conversion strategy and used for nitrate electroreduction. The high Faradaic efficiency (FE) of ammonia (~98.3 %) and an extremely low FE of nitrite (~1.4 %) are achieved on Cu-S, obviously superior to its counterpart of Cu (FENH3: 70.4 %, FENO2 -: 18.8 %). Electrochemical in situ characterizations and theoretical calculations indicate that a small amount of S doping on Cu surface can promote the kinetics of H2O dissociation to active hydrogen. The optimized hydrogen affinity validly decreases the hydrogenation kinetic energy barrier of *NO2, leading to an enhanced NH3 selectivity.
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Affiliation(s)
- Yue Xu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Chuanqi Cheng
- Department of Chemistry, Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300350, China
| | - Jiewei Zhu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
| | - Bin Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
- Department of Chemistry, Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300350, China
| | - Yuting Wang
- Department of Chemistry, Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300350, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Yifu Yu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China
- Department of Chemistry, Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300350, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
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2
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Pattanayak S, Loewen ND, Berben LA. Using Substituted [Fe 4N(CO) 12] - as a Platform To Probe the Effect of Cation and Lewis Acid Location on Redox Potential. Inorg Chem 2023; 62:1919-1925. [PMID: 36006454 DOI: 10.1021/acs.inorgchem.2c01556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The impact of cationic and Lewis acidic functional groups installed in the primary or secondary coordination sphere (PCS or SCS) of an (electro)catalyst is known to vary depending on the precise positioning of those groups. However, it is difficult to systematically probe the effect of that position. In this report, we probe the effect of the functional group position and identity on the observed reduction potentials (Ep,c) using substituted iron clusters, [Fe4N(CO)11R]n, where R = NO+, PPh2-CH2CH2-9BBN, (MePTA+)2, (MePTA+)4, and H+ and n = 0, -1, +1, or +3 (9-BBN is 9-borabicyclo(3.3.1)nonane; MePTA+ is 1-methyl-1-azonia-3,5-diaza-7-phosphaadamantane). The cationic NO+ and H+ ligands cause anodic shifts of 700 and 320 mV, respectively, in Ep,c relative to unsubstituted [Fe4N(CO)12]-. Infrared absorption band data, νCO, suggests that some of the 700 mV shift by NO+ results from electronic changes to the cluster core. This contrasts with the effects of cationic MePTA+ and H+ which cause primarily electrostatic effects on Ep,c. Lewis acidic 9-BBN in the SCS had almost no effect on Ep,c.
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Affiliation(s)
- Santanu Pattanayak
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Natalia D Loewen
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Louise A Berben
- Department of Chemistry, University of California, Davis, California 95616, United States
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Bélanger-Desmarais N, Gavriluta A, Tommasino JB, Reber C, Luneau D. Characteristic vibrational frequencies of osmium( ii) nitrosyl complexes probed by Raman spectroscopy and DFT calculations. NEW J CHEM 2022. [DOI: 10.1039/d2nj01713j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Raman spectroscopy at variable temperature provides experimental frequencies for osmium(ii) nitrosyl complexes. Vibrational transitions are assigned using DFT calculations.
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Affiliation(s)
| | - Anatolie Gavriluta
- Université Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces (UMR 5615), Campus de La Doua, 69622, Villeurbanne Cedex, France
| | - Jean Bernard Tommasino
- Université Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces (UMR 5615), Campus de La Doua, 69622, Villeurbanne Cedex, France
| | - Christian Reber
- Département de chimie, Université de Montréal, Montréal, H3C 3J7, Québec, Canada
| | - Dominique Luneau
- Université Claude Bernard Lyon 1, Laboratoire des Multimatériaux et Interfaces (UMR 5615), Campus de La Doua, 69622, Villeurbanne Cedex, France
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Stauffer M, Sakhaei Z, Greene C, Ghosh P, Bertke JA, Warren TH. Mechanism of O-Atom Transfer from Nitrite: Nitric Oxide Release at Copper(II). Inorg Chem 2021; 60:15968-15974. [PMID: 34184870 DOI: 10.1021/acs.inorgchem.1c00625] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Nitric oxide (NO) is a key signaling molecule in health and disease. While nitrite acts as a reservoir of NO activity, mechanisms for NO release require further understanding. A series of electronically varied β-diketiminatocopper(II) nitrite complexes [CuII](κ2-O2N) react with a range of electronically tuned triarylphosphines PArZ3 that release NO with the formation of O═PArZ3. Second-order rate constants are largest for electron-poor copper(II) nitrite and electron-rich phosphine pairs. Computational analysis reveals a transition-state structure energetically matched with experimentally determined activation barriers. The production of NO follows a pathway that involves nitrite isomerization at CuII from κ2-O2N to κ1-NO2 followed by O-atom transfer (OAT) to form O═PArZ3 and [CuI]-NO that releases NO upon PArZ3 binding at CuI to form [CuI]-PArZ3. These findings illustrate important mechanistic considerations involved in NO formation from nitrite via OAT.
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Affiliation(s)
- Molly Stauffer
- Department of Chemistry, Georgetown University, Box 571227-1227, Washington, D.C. 20057, United States
| | - Zeinab Sakhaei
- Department of Chemistry, Georgetown University, Box 571227-1227, Washington, D.C. 20057, United States
| | - Christine Greene
- Department of Chemistry, Georgetown University, Box 571227-1227, Washington, D.C. 20057, United States
| | - Pokhraj Ghosh
- Department of Chemistry, Georgetown University, Box 571227-1227, Washington, D.C. 20057, United States
| | - Jeffery A Bertke
- Department of Chemistry, Georgetown University, Box 571227-1227, Washington, D.C. 20057, United States
| | - Timothy H Warren
- Department of Chemistry, Georgetown University, Box 571227-1227, Washington, D.C. 20057, United States
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Understanding of [RuL(ONO)] n+ acting as nitric oxide precursor, a theoretical study of ruthenium complexes of 1,4,8,11-tetraazacyclo- tetradecane having different substituents: How spin multiplicity influences bond angle and bond lengths (Ru-O-NO) in releasing of NO. J Inorg Biochem 2021; 218:111406. [PMID: 33773324 DOI: 10.1016/j.jinorgbio.2021.111406] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 02/19/2021] [Accepted: 02/19/2021] [Indexed: 12/25/2022]
Abstract
Generation of nitric oxide has been a great interest in cell biology as it involves a wide range of physiological functions including the blood pressure control; thus the exploitation of ruthenium chemistry has been motivated in biochemical and clinical points of view. Herein, the structural and electronic properties of ruthenium(II) complexes of 1,4,8,11-tetraazacyclotetradecane containing pyridyl, imidazole and benzimidazole (L1, L2, L3) were analyzed theoretically in the context of how spin multiplicity plays a crucial role influencing the NO release from the LRu-ONO moiety. The results show that β-cleavage of nitrito in the complex motivates the release of NO as it depends highly on total spin multiplicity of metal ion altering significantly the geometrical parameters; particularly, a decrease of bond length of Ru-ONO is highly associated with an increase of RuO-NO bond distance that correlates with the decrease of the Ru-O-NO bond angle ultimately leading to the release of NO; apparently, the bending nature of Ru-O-NO defines its release from the complex. This is consistent with orbital energy (dx2-y2) where the stabilization of axial Ru-O bond in the complex was observed, and proved by molecular orbital studies. In the excitation of the complex (singlet to triplet or singlet to quintet), the NO release has been facilitated, agreeing with the Gibbs free energy data where a lower energy for NO release was obtained compared to other types of excitations. In the calculated electronic spectra, a visible broad band with relatively high intensity for [RuL1ONO]+ was observed, agreeing approximately with reported experimental results.
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Takagi N, Ishimura K, Fukuda R, Ehara M, Sakaki S. Reaction Behavior of the NO Molecule on the Surface of an M n Particle (M = Ru, Rh, Pd, and Ag; n = 13 and 55): Theoretical Study of Its Dependence on Transition-Metal Element. J Phys Chem A 2019; 123:7021-7033. [PMID: 31313931 DOI: 10.1021/acs.jpca.9b04069] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reaction of NO molecule on M13 and M55 clusters (M = Ru, Rh, Pd, and Ag) was theoretically investigated to elucidate why its reaction behavior depends on the position of metal element in the periodic table. DFT computations show that NO dissociative adsorption occurs on M = Ru and Rh, NO molecular adsorption occurs on M = Pd, and NO dimerization occurs on M = Ag, which agree with experimental findings. The d-band center and d-band top become lower in energy following the order Ru > Rh > Pd > Ag; this is one of the characteristic features of the periodic table. In the Ag cluster, the valence band-top consists of Ag 5s orbital and its energy is higher than the d-band top of Pd. For NO dissociative adsorption, the M-N and M-O bond strengths are crucially important at the transition state and the product, to which the metal d orbital contributes very much. Ru and Rh clusters have a high energy d-band center and d-valence band top, leading to the formation of strong M-N and M-O bonds. Pd and Ag clusters have a low energy d-band center and d-band top, leading to the formation of weak M-N and M-O bonds. Because the Ag cluster has a high energy 5s valence band that can overlap well with the π* + π* MO of ONNO (NO dimer) moiety due to the same symmetry, charge transfer (CT) occurs from the Ag cluster to the π* + π* MO, which is indispensable for NO dimerization. The 4d-valence band top of Ru and Rh clusters does not fit to the π* + π* MO because of the different symmetry. Though the d-valence band top of the Pd cluster can overlap with the π* + π* MO, its energy is low, which is not good for the CT. Thus, the reactivity of metal cluster for NO is determined by the energy and type (4d or 5s) of the valence band top, which both depend on the position of element in the periodic table; accordingly, Ru and Rh clusters are reactive for NO dissociative adsorption, the Ag cluster is reactive for NO dimerization, but the Pd cluster is not reactive for both and only NO molecular adsorption is possible.
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Affiliation(s)
- Nozomi Takagi
- Elements Strategy Initiative for Catalysts and Batteries , Kyoto University , 1-30 Goryo-Ohara , Nishikyo-ku , Kyoto 615-8245 , Japan
| | | | - Ryoichi Fukuda
- Elements Strategy Initiative for Catalysts and Batteries , Kyoto University , 1-30 Goryo-Ohara , Nishikyo-ku , Kyoto 615-8245 , Japan
| | - Masahiro Ehara
- Elements Strategy Initiative for Catalysts and Batteries , Kyoto University , 1-30 Goryo-Ohara , Nishikyo-ku , Kyoto 615-8245 , Japan.,Institute for Molecular Science , Okazaki 444-8585 , Japan
| | - Shigeyoshi Sakaki
- Elements Strategy Initiative for Catalysts and Batteries , Kyoto University , 1-30 Goryo-Ohara , Nishikyo-ku , Kyoto 615-8245 , Japan.,Fukui Institute for Fundamental Chemistry , Kyoto University , 34-4 Takano-Nishihiraki-cho , Sakyo-ku , Kyoto 606-8103 , Japan
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7
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Gallmeier EA, Gallmeier KM, McFarlane J, Morales-Rodriguez ME. Real time monitoring of the chemistry of hydroxylamine nitrate and iron as surrogates for nuclear materials processing. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1606829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Esther A. Gallmeier
- Isotope and Fuel Cycle Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Katharina M. Gallmeier
- Isotope and Fuel Cycle Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Joanna McFarlane
- Isotope and Fuel Cycle Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
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Feil CM, Hettich TD, Beyer K, Sondermann C, Schlindwein SH, Nieger M, Gudat D. Comparing the Ligand Behavior of N-Heterocyclic Phosphenium and Nitrosyl Units in Iron and Chromium Complexes. Inorg Chem 2019; 58:6517-6528. [PMID: 31017775 DOI: 10.1021/acs.inorgchem.9b00737] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
N-Heterocyclic phosphenium (NHP) and nitrosonium (NO+) ligands are often viewed as isolobal analogues that share the capability to switch between different charge states and thus display redox "noninnocent" behavior. We report here on mixed complexes [(NHP)M(CO) n(NO)] (M = Fe, Cr; n = 2, 3), which permit evaluating the donor/acceptor properties of both types of ligands and their interplay in a single complex. The crystalline target compounds were obtained from reactions of N-heterocyclic phosphenium triflates with PPN[Fe(CO)3(NO)] or PPN[Cr(CO)4(NO)], respectively, and fully characterized (PPN = nitride-bistriphenylphosphonium cation). The structural and spectroscopic (IR, UV-vis) data support the presence of carbene-analogue NHP ligands with an overall positive charge state and π-acceptor character. Even if the structural features of the M-NO unit were in all but one product blurred by crystallographic CO/NO disorder, spectroscopic studies and the structural data of the remaining compound suggest that the NO units exhibit nitroxide (NO-) character. This assignment was validated by computational studies, which reveal also that the electronic structure of iron NHP/NO complexes is closely akin to that of the Hieber anion, [Fe(CO)3(NO)]-. The electrophilic character of the NHP units is further reflected in the chemical behavior of the mixed complexes. Cyclic voltammetry and IR-SEC studies revealed that complex [(NHP)Fe(CO)2(NO)] (4) undergoes chemically reversible one-electron reduction. Computational studies indicate that the NHP unit in the resulting product carries significant radical character, and the reduction may thus be classified as predominantly ligand-centered. Reaction of 4 with sodium azide proceeded likewise under nucleophilic attack at phosphorus and decomplexation, while super hydride and methyl lithium reacted with all chromium and iron complexes via transfer of a hydride or methyl anion to the NHP unit to afford anionic phosphine complexes. Some of these species were isolated after cation exchange or trapped with electrophiles (H+, SnPh3+) to afford neutral complexes representing the products of a formal hydrogenation or hydrostannylation of the original M═P double bond.
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Affiliation(s)
- Christoph M Feil
- Institute for Inorganic Chemistry , University of Stuttgart , Pfaffenwaldring 55 , 70550 Stuttgart , Germany
| | - Thomas D Hettich
- Institute for Inorganic Chemistry , University of Stuttgart , Pfaffenwaldring 55 , 70550 Stuttgart , Germany
| | - Katharina Beyer
- Institute for Inorganic Chemistry , University of Stuttgart , Pfaffenwaldring 55 , 70550 Stuttgart , Germany
| | - Christina Sondermann
- Institute for Inorganic Chemistry , University of Stuttgart , Pfaffenwaldring 55 , 70550 Stuttgart , Germany
| | - Simon H Schlindwein
- Institute for Inorganic Chemistry , University of Stuttgart , Pfaffenwaldring 55 , 70550 Stuttgart , Germany
| | - Martin Nieger
- Department of Chemistry , University of Helsinki , P.O. Box 55, 00014 Helsinki , Finland
| | - Dietrich Gudat
- Institute for Inorganic Chemistry , University of Stuttgart , Pfaffenwaldring 55 , 70550 Stuttgart , Germany
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9
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Alvarez MA, García ME, García-Vivó D, Ramos A, Ruiz MA, Toyos A. N-O Bond Activation and Cleavage Reactions of the Nitrosyl-Bridged Complexes [M 2Cp 2(μ-PCy 2)(μ-NO)(NO) 2] (M = Mo, W). Inorg Chem 2018; 57:15314-15329. [PMID: 30461277 DOI: 10.1021/acs.inorgchem.8b02647] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The title complexes (1a,b) were prepared in two steps by first reacting the hydrides [M2Cp2(μ-H)(μ-PCy2)(CO)4] with [NO](BF4) in the presence of Na2CO3 to give dinitrosyls [M2Cp2(μ-PCy2)(CO)2(NO)2](BF4), which were then fully decarbonylated upon reaction with NaNO2 at 323 K. An isomer of the Mo2 complex having a cisoid arrangement of the terminal ligands ( cis-1a) was prepared upon irradiation of toluene solutions of 1a with visible-UV light at 288 K. The structure of these trinitrosyl complexes was investigated using X-ray diffraction and density functional theory (DFT) calculations, these revealing a genuine pyramidalization of the bridging NO that might be associated in part to an increase of charge at the N atom and anticipated a weakening of the N-O bond upon reaction with bases or reducing reagents. Complexes 1a,b reacted with [FeCp2](BF4) to give first the radicals [M2Cp2(μ-PCy2)(μ-NO)(NO)2](BF4) according to CV experiments, which then underwent H-abstraction to yield the nitroxyl-bridged complexes [M2Cp2(μ-PCy2)(μ-κ1:η2-HNO)(NO)2](BF4), alternatively prepared upon protonation with HBF4·OEt2. The novel coordination mode of the nitroxyl ligand in these products was thermodynamically favored over its tautomeric hydroximido form, according to DFT calculations, and similar nitrosomethane-bridged cations [M2Cp2(μ-PCy2)( μ-κ1:η2-MeNO)(NO)2]+ were prepared by reacting 1a,b with CF3SO3Me or [Me3O]BF4. Complexes 1 reacted with M(Hg) (M = Zn, Na) in tetrahydrofuran to give the amido-bridged derivatives [M2Cp2(μ-PCy2)(μ-NH2)(NO)2] with retention of stereochemistry, a transformation also induced by using mild O atom scavengers such as CO and phosphites in the presence of water. In the absence of water, phosphites accomplished a deoxygenation of the bridging NO of the Mo2 complexes to yield the phosphoraniminato-bridged derivatives [Mo2Cp2(μ-PCy2){μ-NP(OR)3}(NO)2] (R = Et, Ph), also with retention of stereochemistry.
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Affiliation(s)
- M Angeles Alvarez
- Departamento de Química Orgánica e Inorgánica/IUQOEM , Universidad de Oviedo , E-33071 Oviedo , Spain
| | - M Esther García
- Departamento de Química Orgánica e Inorgánica/IUQOEM , Universidad de Oviedo , E-33071 Oviedo , Spain
| | - Daniel García-Vivó
- Departamento de Química Orgánica e Inorgánica/IUQOEM , Universidad de Oviedo , E-33071 Oviedo , Spain
| | - Alberto Ramos
- Departamento de Química Orgánica e Inorgánica/IUQOEM , Universidad de Oviedo , E-33071 Oviedo , Spain
| | - Miguel A Ruiz
- Departamento de Química Orgánica e Inorgánica/IUQOEM , Universidad de Oviedo , E-33071 Oviedo , Spain
| | - Adrián Toyos
- Departamento de Química Orgánica e Inorgánica/IUQOEM , Universidad de Oviedo , E-33071 Oviedo , Spain
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The reactions of RuCl3(NO)(PPh3)2 and RuCl3(NO)·H2O with Ph2P(CH2) P(O)Ph2, n = 1, 2, or 3: Crystal structures of ruthenium nitrosyl complexes containing monodentate and chelating Ph2P(CH2) P(O)Ph2 ligands. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Alvarez MA, García ME, García-Vivó D, Ruiz MA, Toyos A. E-H Bond Activation and Insertion Processes in the Reactions of the Unsaturated Hydride [W 2Cp 2(μ-H)(μ-PPh 2)(NO) 2]. Inorg Chem 2018; 57:2228-2241. [PMID: 29411970 DOI: 10.1021/acs.inorgchem.7b03111] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reactions of the title complex (1) with different p-block element (E) molecules was examined. Compound 1 reacted with BH3·THF at room temperature to give the trihydride [W2Cp2(μ-H)H2(μ-PPh2)(NO)2], which formally results from hydrogenation of 1, a reaction that actually does not take place when neat dihydrogen is used. Clean E-H bond oxidative addition, however, took place when 1 was reacted with HSnPh3, to give the related dihydride stannyl derivative [W2Cp2(μ-H)H(μ-PPh2)(NO)2(SnPh3)]. In contrast, the reaction of 1 with HSPh involved H2 elimination to give the thiolate-bridged complex [W2Cp2(μ-SPh)(μ-PPh2)(NO)2], while that with (p-tol)C(O)H resulted in insertion of the aldehyde to yield the related alkoxide complex [W2Cp2{μ-OCH2(p-tol)}(μ-PPh2)(NO)2]. Insertion also prevailed in the reactions of 1 with CNtBu, which, however, involved the competitive formation of new C-H or N-H bonds, to give a mixture of formimidoyl and aminocarbyne derivatives, [W2Cp2(μ-κ1:η2-HCNtBu)(μ-PPh2)(NO)2] (W-W = 3.0177(2) Å) and [W2Cp2{μ-C(NHtBu)}(μ-PPh2)(NO)2] (W-W = 2.9010(4) Å), respectively, even though the latter was thermodynamically preferred, according to density functional theory calculations. The former represents the first structurally characterized complex displaying a formimidoyl or iminoacyl ligand in the alkenyl-like μ-κ1:η2 coordination mode. The reaction of 1 with diazomethane proceeded with N2 elimination and C-H coupling to yield the agostic methyl-bridged complex [W2Cp2(μ-κ1:η2-CH3)(μ-PPh2)(NO)2] (calculated W-W = 2.923 Å), whereas the reaction with N2CH(SiMe3) proceeded with insertion of the diazoalkane to give the corresponding hydrazonide complex [W2Cp2{μ-NH(NCHSiMe3)}(μ-PPh2)(NO)2] (W-W = 2.8608(4) Å). The latter was converted under alkaline conditions to the methyldiazenide derivative [W2Cp2{μ-N(NMe)}(μ-PPh2)(NO)2] (W-W = 2.8730(2) Å), in a process involving hydrolysis of the C-Si bond coupled with a 1,3-H shift from N to C.
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Affiliation(s)
- M Angeles Alvarez
- Departamento de Química Orgánica e Inorgánica/IUQOEM, Universidad de Oviedo , E-33071 Oviedo, Spain
| | - M Esther García
- Departamento de Química Orgánica e Inorgánica/IUQOEM, Universidad de Oviedo , E-33071 Oviedo, Spain
| | - Daniel García-Vivó
- Departamento de Química Orgánica e Inorgánica/IUQOEM, Universidad de Oviedo , E-33071 Oviedo, Spain
| | - Miguel A Ruiz
- Departamento de Química Orgánica e Inorgánica/IUQOEM, Universidad de Oviedo , E-33071 Oviedo, Spain
| | - Adrián Toyos
- Departamento de Química Orgánica e Inorgánica/IUQOEM, Universidad de Oviedo , E-33071 Oviedo, Spain
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12
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Somov NV, Chausov FF, Zakirova RM, Fedotova IV, Lomova NV, Shabanova IN, Petrov VG, Shumilova MA, Zhirov DK. The trisodium monohydrogen-nitrilo-tris-methylenephosphonato-hydroxylaminato-nitrosyl-molybdate octahydrate Na3[Mo(NO)(NH2O){N(CH2PO3)3H}] · 8H2O: Synthesis, structure, and nature of coordination bond of transition metal with non-innocent ligand. RUSS J COORD CHEM+ 2017. [DOI: 10.1134/s1070328417120090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Khivantsev K, Vityuk A, Aleksandrov HA, Vayssilov GN, Blom D, Alexeev OS, Amiridis MD. Synthesis, Modeling, and Catalytic Properties of HY Zeolite-Supported Rhodium Dinitrosyl Complexes. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00864] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Konstantin Khivantsev
- Department
of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Artem Vityuk
- Department
of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Hristiyan A. Aleksandrov
- Faculty
of Chemistry and Pharmacy, University of Sofia, Blvd. J. Bauchier
1, BG-1126 Sofia, Bulgaria
| | - Georgi N. Vayssilov
- Faculty
of Chemistry and Pharmacy, University of Sofia, Blvd. J. Bauchier
1, BG-1126 Sofia, Bulgaria
| | - Douglas Blom
- Electron
Microscopy Center, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Oleg S. Alexeev
- Department
of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Michael D. Amiridis
- Department
of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, United States
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Osica I, Imamura G, Shiba K, Ji Q, Shrestha LK, Hill JP, Kurzydłowski KJ, Yoshikawa G, Ariga K. Highly Networked Capsular Silica-Porphyrin Hybrid Nanostructures as Efficient Materials for Acetone Vapor Sensing. ACS APPLIED MATERIALS & INTERFACES 2017; 9:9945-9954. [PMID: 28234457 DOI: 10.1021/acsami.6b15680] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The development of novel functional nanomaterials is critically important for the further evolution of advanced chemical sensor technology. For this purpose, metalloporphyrins offer unique binding properties as host molecules that can be tailored at the synthetic level and potentially improved by incorporation into inorganic materials. In this work, we present a novel hybrid nanosystem based on a highly networked silica nanoarchitecture conjugated through covalent bonding to an organic functional molecule, a tetraphenylporphyrin derivative, and its metal complexes. The sensing properties of the new hybrid materials were studied using a nanomechanical membrane-type surface stress sensor (MSS) with acetone and nitric oxide as model analytes. This hybrid inorganic-organic MSS-based system exhibited excellent performance for acetone sensing at low operating temperatures (37 °C), making it available for diagnostic monitoring. The hybridization of an inorganic substrate of large surface area with organic molecules of various functionalities results in sub-ppm detection of acetone vapors. Acetone is an important metabolite in lipid metabolism and can also be present in industrial environments at deleterious levels. Therefore, we believe that the analysis system presented by our work represents an excellent opportunity for the development of a portable, easy-to-use device for monitoring local acetone levels.
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Affiliation(s)
- Izabela Osica
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan
- Faculty of Materials Science and Engineering, Warsaw University of Technology , Woloska 141, 02-507 Warsaw, Poland
| | - Gaku Imamura
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan
- International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS) , Tsukuba, Ibaraki 305-0044, Japan
| | - Kota Shiba
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Qingmin Ji
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan
- Herbert Gleiter Institute for Nanoscience, Nanjing University of Science and Technology , 200 Xiaolingwei, Nanjing, 210094, China
| | - Lok Kumar Shrestha
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Jonathan P Hill
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Krzysztof J Kurzydłowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology , Woloska 141, 02-507 Warsaw, Poland
| | - Genki Yoshikawa
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan
- Materials Science and Engineering, Graduate School of Pure and Applied Science, University of Tsukuba , Tennodai 1-1-1 Tsukuba, Ibaraki 305-8571, Japan
| | - Katsuhiko Ariga
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba 305-0044, Japan
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15
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Amabilino S, Tasse M, Lacroix PG, Mallet-Ladeira S, Pimienta V, Akl J, Sasaki I, Malfant I. Photorelease of nitric oxide (NO) on ruthenium nitrosyl complexes with phenyl substituted terpyridines. NEW J CHEM 2017. [DOI: 10.1039/c7nj00866j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transandcisisomers of ruthenium nitrosyl complexes release NO upon irradiation by visible light and give a unique photoproduct.
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Affiliation(s)
- Silvia Amabilino
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- 31077 Toulouse
- France
- Université de Toulouse
| | - Marine Tasse
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- 31077 Toulouse
- France
- Université de Toulouse
| | - Pascal G. Lacroix
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- 31077 Toulouse
- France
- Université de Toulouse
| | - Sonia Mallet-Ladeira
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- 31077 Toulouse
- France
- Université de Toulouse
| | - Véronique Pimienta
- Laboratoire des Interactions Moléculaires et de la Réactivité Chimique et Photochimique
- Université Paul Sabatier de Toulouse
- 31062 Toulouse Cedex 9
- France
| | - Joëlle Akl
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- 31077 Toulouse
- France
- Université de Toulouse
| | - Isabelle Sasaki
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- 31077 Toulouse
- France
- Université de Toulouse
| | - Isabelle Malfant
- CNRS
- LCC (Laboratoire de Chimie de Coordination)
- 31077 Toulouse
- France
- Université de Toulouse
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16
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Yu P, Zhao Y, Yang F, Pan H, Wang J, Zhao J, Wang W, Wang H, Wang J. Differentiating Two Nitrosylruthenium Isomeric Complexes by Steady-State and Ultrafast Infrared Spectroscopies. J Phys Chem B 2016; 120:11502-11509. [PMID: 27755866 DOI: 10.1021/acs.jpcb.6b08060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The [Ru(II)-NO+] group affects the structure and chemical reactivity of nitrosylruthenium(II) complexes. A characteristic infrared absorption band due to the nitrosyl (NO) stretching motion is shown in the frequency region 1800-1900 cm-1. In this work, linear infrared (IR) and nonlinear IR methods, including pump-probe and two-dimensional (2D) IR, were utilized to study the structures and dynamics of two isomeric nitrosylruthenium complexes [Ru(OAc)(2mqn)2NO] (H2mqn = 2-methyl-8-quinolinol) in cis and trans isomeric configurations in a weak polar solvent (CDCl3). Using the NO stretching mode as a vibrational probe, information about local structural dynamics of the Ru complex as well as solvent fluctuation dynamics was obtained. In particular, a "structured" solvent environment is believed to form in the vicinity of the NO group in the case of the cis isomer with the aid of a neighboring OAc ligand, which is the reason for more efficient vibrational relaxation but more inhomogeneously distributed solvent and thus associated slower spectral diffusion. Our results also suggest a more anharmonic potential surface for the NO stretching mode in the less stable trans isomer.
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Affiliation(s)
- Pengyun Yu
- Beijing National Laboratory for Molecular Sciences, Molecular Reaction Dynamics Laboratory, Institute of Chemistry, the Chinese Academy of Sciences , Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Yan Zhao
- Beijing National Laboratory for Molecular Sciences, Molecular Reaction Dynamics Laboratory, Institute of Chemistry, the Chinese Academy of Sciences , Beijing, 100190, P. R. China.,Institute of Molecular Science, Shanxi University , Taiyuan, 030006, P. R. China
| | - Fan Yang
- Beijing National Laboratory for Molecular Sciences, Molecular Reaction Dynamics Laboratory, Institute of Chemistry, the Chinese Academy of Sciences , Beijing, 100190, P. R. China
| | - Huifen Pan
- Institute of Molecular Science, Shanxi University , Taiyuan, 030006, P. R. China
| | - Jianru Wang
- Institute of Molecular Science, Shanxi University , Taiyuan, 030006, P. R. China
| | - Juan Zhao
- Beijing National Laboratory for Molecular Sciences, Molecular Reaction Dynamics Laboratory, Institute of Chemistry, the Chinese Academy of Sciences , Beijing, 100190, P. R. China
| | - Wenming Wang
- Institute of Molecular Science, Shanxi University , Taiyuan, 030006, P. R. China
| | - Hongfei Wang
- Institute of Molecular Science, Shanxi University , Taiyuan, 030006, P. R. China
| | - Jianping Wang
- Beijing National Laboratory for Molecular Sciences, Molecular Reaction Dynamics Laboratory, Institute of Chemistry, the Chinese Academy of Sciences , Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences , Beijing 100049, P. R. China
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17
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Structures and spectroscopic properties of three [RuCl(2mqn) 2 NO] (H2mqn = 2-methyl-8-quinolinol) isomers: An experimental and density functional theoretical study. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.07.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Zhao Y, Yang F, Wang J, Yu P, Pan H, Wang H, Wang J. Structural dynamics of nitrosylruthenium isomeric complexes studied with steady-state and transient pump-probe infrared spectroscopies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 166:62-67. [PMID: 27209490 DOI: 10.1016/j.saa.2016.04.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 04/25/2016] [Accepted: 04/27/2016] [Indexed: 06/05/2023]
Abstract
The characteristic nitrosyl stretching (NO) in the region of 1800-1900cm(-1) was used to study the geometric and ligand effect on two nitrosylruthenium complexes, namely [Ru(OAc)(2QN)2NO] (QN=2-chloro-8-quinolinol (H2cqn) or QN=2-methyl-8-quinolinol (H2mqn)). The NO stretching frequency (νNO) was found in the following order: νcis-1 (2cqn)>νcis-2 (2cqn)>νcis-1 (2mqn)>νtrans (2mqn). The results exhibited a spectral sensitivity of the NO mode to both charge distribution and ligand arrangement, which was supported by ab initio computations and natural bond orbital (NBO) analyses. Further, the vibrational population of the vibrationally excited NO stretching mode was found to relax on the order of 7-10ps, showing less than 30% variation from one isomer to another, which were explained on the basis of NO local structures and solute-solvent interactions in these isomeric nitrosylruthenium complexes.
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Affiliation(s)
- Yan Zhao
- College of Physics & Electronics Engineering, Shanxi University, Taiyuan 030006, China; Molecular Reaction Dynamics Laboratory, Beijing National Laboratory for Molecular Sciences, Beijing 100190, China; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Fan Yang
- Molecular Reaction Dynamics Laboratory, Beijing National Laboratory for Molecular Sciences, Beijing 100190, China; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jianru Wang
- Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
| | - Pengyun Yu
- Molecular Reaction Dynamics Laboratory, Beijing National Laboratory for Molecular Sciences, Beijing 100190, China; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Huifen Pan
- Key Laboratory of Energy Conversion and Storage Materials of Shanxi Provence, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China
| | - Hongfei Wang
- Key Laboratory of Energy Conversion and Storage Materials of Shanxi Provence, Institute of Molecular Science, Shanxi University, Taiyuan 030006, China.
| | - Jianping Wang
- Molecular Reaction Dynamics Laboratory, Beijing National Laboratory for Molecular Sciences, Beijing 100190, China; Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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19
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Abstract
The coordination chemistry of metal nitrosyls has expanded rapidly in the past decades due to major advances of nitric oxide and its metal compounds in biology. This review article highlights advances made in the area of multinuclear metal nitrosyl complexes, including Roussin's salts and their ester derivatives from 2003 to present. The review article focuses on isolated multinuclear metal nitrosyl complexes and is organized into different sections by the number of metal centers and bridging ligands.
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20
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Hockley R, Irshad H, Sheriff TS, Motevalli M, Marinakis S. Crystal structure of bromido-nitro-syl-bis(tri-phenyl-phosphane-κP)nickel(II). Acta Crystallogr E Crystallogr Commun 2015; 71:m87-8. [PMID: 26029415 PMCID: PMC4438846 DOI: 10.1107/s2056989015004703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 03/07/2015] [Indexed: 11/23/2022]
Abstract
The asymmetric unit of the title complex, [NiBr(NO){P(C6H5)3}2], comprises two independent mol-ecules each with a similar configuration. The Ni(II) cation is coordinated by one bromide anion, one nitrosyl anion and two tri-phenyl-phosphane mol-ecules in a distorted BrNP2 tetra-hedral coordination geometry. The coordination of the nitrosyl group is non-linear, the Ni-N-O angles being 150.2 (5) and 151.2 (5)° in the two independent mol-ecules. In the crystal, mol-ecules are linked by weak C-H⋯Br hydrogen bonds and weak C-H⋯π inter-actions into a three-dimensional supra-molecular architecture.
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Affiliation(s)
- Rose Hockley
- Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London E1 4NS, England
| | - Hira Irshad
- Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London E1 4NS, England
| | - Tippu S. Sheriff
- Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London E1 4NS, England
| | - Majid Motevalli
- Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London E1 4NS, England
| | - Sarantos Marinakis
- Department of Chemistry and Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, Joseph Priestley Building, Mile End Road, London E1 4NS, England
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21
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Di Fiore A, Vergara A, Caterino M, Alterio V, Monti SM, Ombouma J, Dumy P, Vullo D, Supuran CT, Winum JY, De Simone G. Hydroxylamine-O-sulfonamide is a versatile lead compound for the development of carbonic anhydrase inhibitors. Chem Commun (Camb) 2015; 51:11519-22. [DOI: 10.1039/c5cc03711e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxylamine-O-sulfonamide has been investigated as CA inhibitor by means of kinetic and structural studies clarifying its mechanism of action.
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Affiliation(s)
- Anna Di Fiore
- Istituto di Biostrutture e Bioimmagini-CNR
- 80134 Napoli
- Italy
| | - Alessandro Vergara
- Istituto di Biostrutture e Bioimmagini-CNR
- 80134 Napoli
- Italy
- Department of Chemical Sciences
- Napoli
| | | | | | | | - Joanna Ombouma
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS
- ENSCM
- Université de Montpellier
- Bâtiment de Recherche Max Mousseron
- Ecole Nationale Supérieure de Chimie de Montpellier
| | - Pascal Dumy
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS
- ENSCM
- Université de Montpellier
- Bâtiment de Recherche Max Mousseron
- Ecole Nationale Supérieure de Chimie de Montpellier
| | - Daniela Vullo
- Università degli Studi di Firenze
- Polo Scientifico
- Laboratorio di Chimica Bioinorganica
- Florence
- Italy
| | - Claudiu T. Supuran
- Università degli Studi di Firenze
- Polo Scientifico
- Laboratorio di Chimica Bioinorganica
- Florence
- Italy
| | - Jean-Yves Winum
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS
- ENSCM
- Université de Montpellier
- Bâtiment de Recherche Max Mousseron
- Ecole Nationale Supérieure de Chimie de Montpellier
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22
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Andriani KF, Caramori GF, Muñoz-Castro A, Doro FG. The influence of L ligands on the {RuNO}6/7 bonding situation in cis-[Ru(NO)(NO2)L1–4]q complexes: a theoretical insight. RSC Adv 2015. [DOI: 10.1039/c5ra10888h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The nature of the Ru–NO interaction before and after reduction of cis-[Ru(NO)(NO2)L1–4]q complexes is modulated by the coordination environment of the metallic center, resulting in more labile on complexes with weak π-acceptor ligands.
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Affiliation(s)
- K. F. Andriani
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Campus Universitário
- Florianópolis
- Brazil
| | - G. F. Caramori
- Departamento de Química
- Universidade Federal de Santa Catarina – UFSC
- Campus Universitário
- Florianópolis
- Brazil
| | - A. Muñoz-Castro
- Facultad de Ingenieria
- Universidad Autonoma de Chile
- Santiago
- Chile
| | - F. G. Doro
- Departamento de Química Geral e Inorgânica
- Universidade Federal da Bahia – UFBA
- Salvador
- Brazil
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23
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Wang J, Yang F, Zhao Y, Yu P, Qiao X, Wang J, Wang H. Photoisomerization and structural dynamics of two nitrosylruthenium complexes: a joint study by NMR and nonlinear IR spectroscopies. Phys Chem Chem Phys 2014; 16:24045-54. [PMID: 25285659 DOI: 10.1039/c4cp02298j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, the photoisomerization and structural dynamics of two isomeric nitrosylruthenium(ii) complexes [Ru(OAc)(2cqn)2NO] (H2cqn = 2-chloro-8-quinolinol) in CDCl3 and DMSO are examined using NMR and IR spectroscopic methods. The two N atoms in the 2cqn ligand are in trans position in the synthesized cis-1 isomer, while they are in cis position in the cis-2 isomer. Kinetics monitored by NMR spectroscopy shows that the rate constant of photoisomerization from cis-2 to cis-1 isomer depends on the wavelength of irradiation and solvent polarity; it proceeds faster on irradiating near the absorption peak in the UV-Vis region, and also in more polar solvents (DMSO). Density functional theory computation indicates that the peculiarity of [Ru(ii)-NO(+)] group affects the structure and reactivity of the nitrosylruthenium complexes. Using the nitrosyl stretching (νNO) to be vibrational probe, the structural dynamics and structural distributions of the cis-1 and cis-2 isomers are examined by steady-state linear infrared and ultrafast two-dimensional infrared (2D IR) spectroscopies. The structural and photochemical aspects of the observed spectroscopic parameters are discussed in terms of solute-solvent interactions for the two nitrosylruthenium complexes.
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Affiliation(s)
- Jianru Wang
- State Key Lab of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China.
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24
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Shiotari A, Mitsui T, Okuyama H, Hatta S, Aruga T, Koitaya T, Yoshinobu J. Configuration change of NO on Cu(110) as a function of temperature. J Chem Phys 2014; 140:214706. [PMID: 24908034 DOI: 10.1063/1.4881262] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The bonding structure of nitric oxide (NO) on Cu(110) is studied by means of scanning tunneling microscopy, reflection absorption infrared spectroscopy, and electron energy loss spectroscopy at 6-160 K. At low temperatures, the NO molecule adsorbs at the short bridge site via the N end in an upright configuration. At around 50 K, this turns into a flat configuration, in which both the N and O atoms interact with the surface. The flat configuration is characterized by the low-frequency N-O stretching mode at 855 cm(-1). The flat-lying NO flips back and forth when the temperature increases to ~80 K, and eventually dissociates at ~160 K. We propose a potential energy diagram for the conversion of NO on the surface.
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Affiliation(s)
- A Shiotari
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - T Mitsui
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - H Okuyama
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - S Hatta
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - T Aruga
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - T Koitaya
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - J Yoshinobu
- The Institute for Solid State Physics, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
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25
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Alvarez MA, García ME, García-Vivó D, Melón S, Ruiz MA, Toyos A. Reactions of the unsaturated ditungsten complexes [W2Cp2(μ-PPh2)2(CO)x] (x = 1, 2) with nitric oxide: stereoselective carbonyl displacement and oxygen-transfer reactions of a nitrite ligand. Inorg Chem 2014; 53:4739-50. [PMID: 24739068 DOI: 10.1021/ic500498k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The dicarbonyl complex trans-[W2Cp2(μ-PPh2)2(CO)2] (Cp = η(5)-C5H5) reacted rapidly with NO (5% in N2) at 273 K to give selectively cis-[W2Cp2(μ-PPh2)2(NO)2]. In contrast, the analogous reactions of monocarbonyl [W2Cp2(μ-PPh2)2(μ-CO)] yielded either trans-[W2Cp2(μ-PPh2)2(NO)2] or the nitrito complex [W2Cp2(μ-PPh2)2(ONO)(CO)(NO)] (W-W = 2.9797(4) Å), depending on experimental conditions, with the latter presumably arising from reaction with trace amounts of oxygen in the medium. The stereoselectivity of the above reactions can be rationalized by assuming the participation of 33-electron [W2Cp2(μ-PPh2)2(CO)(NO)] intermediates which rapidly add a second molecule of NO via η(2)-C5H5 intermediates to eventually yield the corresponding dinitrosyls with inversion of the stereochemistry at the dimetal center, as supported by density functional theory (DFT) calculations. The nitrito complex was thermally unstable and evolved through oxygen transfer either to the carbonyl ligand, to yield the above dinitrosyls with release of CO2, or to the phosphide ligand, to give the phosphinito derivative cis-[W2Cp2(μ-OPPh2)(μ-PPh2)(NO)2], depending on experimental conditions. According to DFT calculations, the first process would involve transient dissociation/recombination of the nitrite ligand followed by coupling to carbonyl to give an intermediate with a chelate W{C,N-C(O)ON(O)} ring. Indeed, the nitrite ligand could be easily removed upon reaction of the nitrito complex with Na(BAr'4), but immediate decomposition also took place to render the electron-precise dicarbonyl [W2Cp2(μ-PPh2)2(CO)2(NO)]BAr'4 (W-W = 2.9663(3) Å) as the unique product (Ar' = 3,5-C6H3(CF3)2). Attempts to decarbonylate the latter complex photochemically yielded instead the oxo derivatives cis- and trans-[W2Cp2(μ-PPh2)2(O)(NO)]BAr'4 as the only isolable products (W-W = 2.980(2) and 3.0077(3) Å, respectively).
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Affiliation(s)
- M Angeles Alvarez
- Departamento de Química Orgánica e Inorgánica/IUQOEM, Universidad de Oviedo , E-33071 Oviedo, Spain
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26
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Broclawik E, Stępniewski A, Radoń M. Nitric oxide as a non-innocent ligand in (bio-)inorganic complexes: spin and electron transfer in Fe(II)-NO bond. J Inorg Biochem 2014; 136:147-53. [PMID: 24495545 DOI: 10.1016/j.jinorgbio.2014.01.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 01/10/2014] [Accepted: 01/10/2014] [Indexed: 11/27/2022]
Abstract
The nature of electron density transfer upon bond formation between NO ligand and Fe(II) center is analyzed on the basis of DFT calculation for two {Fe-NO}(7) complexes with entirely diverse geometric and electronic structures: Fe(II)P(NH3)NO (with bent Fe-N-O unit) and [Fe(II)(H2O)5(NO)](2+) (with linear Fe-N-O structure). Proper identification of an electronic status of the fragments, "prepared" to make a bond, was found necessary to get meaningful resolution of charge and spin transfer processes from a spin-resolved analysis of natural orbitals for chemical valence. The Fe(II)P(NH3)NO adduct (built of NO(0) (S=1/2) and Fe(II)P(NH3) (S=0) fragments) showed a strong π*-backdonation competing with spin transfer via a σ-donation, yielding significant red-shift of the NO stretching frequency. [Fe(II)(H2O)5(NO)](2+) (built of NO(0) (S=1/2) antiferromagnetically coupled to Fe(II)(H2O)5 (S=2) fragment) gave no noticeable charge or spin transfer between fragments; a slight blue-shift of the NO stretching frequency could be related to a residual π-donation due to weak π-bonding.
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Affiliation(s)
- Ewa Broclawik
- Jerzy Haber Institute of Catalysis PAS, ul. Niezapominajek 8, 30-239 Krakow, Poland.
| | - Adam Stępniewski
- Jerzy Haber Institute of Catalysis PAS, ul. Niezapominajek 8, 30-239 Krakow, Poland
| | - Mariusz Radoń
- Faculty of Chemistry, Jagiellonian University, ul. Ingardena 3, 30-060 Krakow, Poland
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27
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Historical Introduction to Nitrosyl Complexes. NITROSYL COMPLEXES IN INORGANIC CHEMISTRY, BIOCHEMISTRY AND MEDICINE I 2014. [DOI: 10.1007/430_2013_116] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Andriani KF, Caramori GF, Doro FG, Parreira RLT. Ru–NO and Ru–NO2bonding linkage isomerism in cis-[Ru(NO)(NO)(bpy)2]2+/+complexes – a theoretical insight. Dalton Trans 2014; 43:8792-804. [DOI: 10.1039/c4dt00016a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Calculated energy profile (kcal mol−1) for linkage isomers relative to the ground state structure (GS)1aprior the monoelectronic reduction.
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Affiliation(s)
- Karla Furtado Andriani
- Departamento de Química
- Universidade Federal de Santa Catarina
- Campi Universitário Trindade
- 88040-900 Florianópolis, Brazil
| | - Giovanni Finoto Caramori
- Departamento de Química
- Universidade Federal de Santa Catarina
- Campi Universitário Trindade
- 88040-900 Florianópolis, Brazil
| | - Fábio Gorzoni Doro
- Departamento de Química Geral e Inorgânica
- Universidade Federal da Bahia – UFBA
- Salvador, Brazil
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Jiang Y, Huang W, Schmalle HW, Blacque O, Fox T, Berke H. Structural Evidence for Lewis Acid Triggered Nitrosyl Bending in Rhenium(–I) Chloro Catalysts for Alkene Hydrogenation Reactions. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yanfeng Jiang
- Anorganisch‐chemisches Institut, Universität Zürich, Winterthurerstr. 190, 8037 Zürich, Switzerland, http://www.aci.uzh.ch/research‐groups/emeriti/berke‐group/
| | - Wenjing Huang
- Anorganisch‐chemisches Institut, Universität Zürich, Winterthurerstr. 190, 8037 Zürich, Switzerland, http://www.aci.uzh.ch/research‐groups/emeriti/berke‐group/
| | - Helmut W. Schmalle
- Anorganisch‐chemisches Institut, Universität Zürich, Winterthurerstr. 190, 8037 Zürich, Switzerland, http://www.aci.uzh.ch/research‐groups/emeriti/berke‐group/
| | - Olivier Blacque
- Anorganisch‐chemisches Institut, Universität Zürich, Winterthurerstr. 190, 8037 Zürich, Switzerland, http://www.aci.uzh.ch/research‐groups/emeriti/berke‐group/
| | - Thomas Fox
- Anorganisch‐chemisches Institut, Universität Zürich, Winterthurerstr. 190, 8037 Zürich, Switzerland, http://www.aci.uzh.ch/research‐groups/emeriti/berke‐group/
| | - Heinz Berke
- Anorganisch‐chemisches Institut, Universität Zürich, Winterthurerstr. 190, 8037 Zürich, Switzerland, http://www.aci.uzh.ch/research‐groups/emeriti/berke‐group/
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Singh P, Saltsman I, Mahammed A, Goldberg I, Tumanskii B, Gross Z. Iron complexes of tris(4-nitrophenyl)corrole, with emphasis on the (nitrosyl)iron complex. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424612500605] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The iron complexes of 5,10,15-tris(4-nitrophenyl)corrole have been prepared and characterized by various spectroscopic techniques. The (nitrosyl)iron complex is diamagnetic and its X-ray structure reveals an almost perfectly linear Fe–N–O bond. EPR spectroscopy in conjunction with 15N labelling were used to deduce the redox centre of the one-electron reduction and oxidation products of the (nitrosyl)iron corrole.
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Affiliation(s)
- Pinky Singh
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Irena Saltsman
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Atif Mahammed
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Israel Goldberg
- School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Boris Tumanskii
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
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