51
|
Golub IE, Filippov OA, Belkova NV, Epstein LM, Rossin A, Peruzzini M, Shubina ES. Two pathways of proton transfer reaction to (triphos)Cu(η(1)-BH4) via a dihydrogen bond [triphos = 1,1,1-tris(diphenylphosphinomethyl)ethane]. Dalton Trans 2018; 45:9127-35. [PMID: 27163554 DOI: 10.1039/c6dt01104g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction of the η(1)-tetrahydroborate copper(i) complex (triphos)Cu(η(1)-BH4) () with proton donors [CF3CH2OH (TFE), (CF3)2CHOH (HFIP), (CF3)3COH (PFTB), PhOH, p-NO2C6H4OH (PNP), p-NO2C6H4N[double bond, length as m-dash]NC6H4OH (PNAP), CF3OH] was a subject of a combined IR spectroscopic and theoretical investigation. Spectral (Δν) and thermodynamic (ΔH) parameters of dihydrogen bond (DHB) formation were determined experimentally. The terminal hydride ligand (characterized by the basicity factor Ej(BH) = 0.87 ± 0.01) is found to be a site of proton transfer which begins with nucleophilic substitution of BH4(-) by the alcohol oxygen atom on the copper center (BH pathway). The activation barrier computed for (CF3)2CHOH in CH2Cl2 - ΔG = 20.6 kcal mol(-1) - is in good agreement with the experimental value (ΔG = 20.0 kcal mol(-1)). An abnormal dependence of the reaction rate on the proton donor strength found experimentally in dichloromethane is explained computationally on the basis of the variation of the structural and energetic details of this process with the proton donor strength. In the second reaction mechanism found (CuH pathway), DHB complexes with the initial ROH coordination to the bridging hydride lead to B-Hbr bond cleavage with BH3 elimination. "Copper assistance" via the CuO interaction is not involved. This mechanism can be evoked to explain the occurrence of proton transfer in coordinating solvents.
Collapse
|
52
|
Mealli C, Ienco A, Peruzzini M, Manca G. The atomic level mechanism of white phosphorous demolition by di-iodine. Dalton Trans 2018; 47:394-408. [PMID: 29219161 DOI: 10.1039/c7dt04034b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A detailed mechanism of the I2-induced transformation of white phosphorus into PI3 emerges from a DFT analysis. This multi-step process implies that at any stage one P-P and two I-I bonds cleavages, associated with the formation of two P-I bonds plus an in situ generated brand new I2 molecule. Significant electron transfer between the atoms is observed at any step, but the reactions are better defined as concerted rather than redox. Along the steepest descent to the product, no significant barrier is encountered except for the very first P4 activation, which costs +14.6 kcal mol-1. At the atomic level, one first I2 molecule, a typical mild oxidant, is first involved in a linear halogen bonding interaction (XB) with one P donor, while its terminal I atom is engaged in an additional XB adduct with a second I2. Significant electron transfer through the combined diatomics allows the external I atom of the dangling I3 grouping to convey electrons into the σ* level of one P-P bond with its consequent cleavage. This implies at some point the appearance of a six-membered ring, which alternatively switches its bonding and no-bonding interactions. The final transformation of the P2I4 diphosphine into two PI3 phosphines is enlightening also for the specific role of the I substituents. In fact, it is proved that an organo-diphosphine analogue hardly undergoes the separation of two phosphines, as reported in the literature. This is attributable to the particularly high donor power of the carbo-substituted P atoms, which prevents the concertedness of the reaction but favors charge separation in an unreactive ion pair.
Collapse
|
53
|
Guerriero A, Peruzzini M, Gonsalvi L. Coordination chemistry of 1,3,5-triaza-7-phosphatricyclo[3.3.1.1]decane (PTA) and derivatives. Part III. Variations on a theme: Novel architectures, materials and applications. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.024] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
54
|
Fabrizi de Biani F, Corsini M, Ienco A, Peruzzini M, Zanobini F. More about the redox behavior of late transition metal triple-decker complexes with cyclo-triphosphorus. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
55
|
Servin P, Laurent R, Tristany M, Romerosa A, Peruzzini M, Garcia-Maroto F, Majoral JP, Caminade AM. Dual properties of water-soluble Ru-PTA complexes of dendrimers: Catalysis and interaction with DNA. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.04.044] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
56
|
Ienco A, Peruzzini M. Preface. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
57
|
Barzagli F, Giorgi C, Mani F, Peruzzini M. CO 2 capture by aqueous Na 2 CO 3 integrated with high-quality CaCO 3 formation and pure CO 2 release at room conditions. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.10.016] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
58
|
Scelta D, Baldassarre A, Serrano‐Ruiz M, Dziubek K, Cairns AB, Peruzzini M, Bini R, Ceppatelli M. Interlayer Bond Formation in Black Phosphorus at High Pressure. Angew Chem Int Ed Engl 2017; 56:14135-14140. [PMID: 28940812 PMCID: PMC5836885 DOI: 10.1002/anie.201708368] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Indexed: 11/10/2022]
Abstract
Black phosphorus was compressed at room temperature across the A17, A7 and simple-cubic phases up to 30 GPa, using a diamond anvil cell and He as pressure transmitting medium. Synchrotron X-ray diffraction showed the persistence of two previously unreported peaks related to the A7 structure in the pressure range of the simple-cubic phase. The Rietveld refinement of the data demonstrates the occurrence of a two-step mechanism for the A7 to simple-cubic phase transition, indicating the existence of an intermediate pseudo simple-cubic structure. From a chemical point of view this study represents a deep insight on the mechanism of interlayer bond formation during the transformation from the layered A7 to the non-layered simple-cubic phase of phosphorus, opening new perspectives for the design, synthesis and stabilization of phosphorene-based systems. As superconductivity is concerned, a new experimental evidence to explain the anomalous pressure behavior of Tc in phosphorus below 30 GPa is provided.
Collapse
|
59
|
Scelta D, Baldassarre A, Serrano-Ruiz M, Dziubek K, Cairns AB, Peruzzini M, Bini R, Ceppatelli M. Interlayer Bond Formation in Black Phosphorus at High Pressure. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708368] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
60
|
Golub IE, Filippov OA, Belkova NV, Gutsul EI, Epstein LM, Rossin A, Peruzzini M, Shubina ES. Competition between the Hydride Ligands of Two Types in Proton Transfer to [{κ3-P-CH3C(CH2CH2PPh2)3}RuH(η2-BH4)]. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700624] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
61
|
Bertini F, Glatz M, Gorgas N, Stöger B, Peruzzini M, Veiros LF, Kirchner K, Gonsalvi L. Carbon dioxide hydrogenation catalysed by well-defined Mn(i) PNP pincer hydride complexes. Chem Sci 2017; 8:5024-5029. [PMID: 28970889 PMCID: PMC5613213 DOI: 10.1039/c7sc00209b] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 04/28/2017] [Indexed: 12/22/2022] Open
Abstract
The catalytic reduction of carbon dioxide is of great interest for its potential as a hydrogen storage method and to use carbon dioxide as C-1 feedstock. In an effort to replace expensive noble metal-based catalysts with efficient and cheap earth-abundant counterparts, we report the first example of Mn(i)-catalysed hydrogenation of CO2 to HCOOH. The hydride Mn(i) catalyst [Mn(PNPNH-iPr)(H)(CO)2] showed higher stability and activity than its Fe(ii) analogue. TONs up to 10 000 and quantitative yields were obtained after 24 h using DBU as the base at 80 °C and 80 bar total pressure. At catalyst loadings as low as 0.002 mol%, TONs greater than 30 000 could be achieved in the presence of LiOTf as the co-catalyst, which are among the highest activities reported for base-metal catalysed CO2 hydrogenations to date.
Collapse
|
62
|
Todisco S, Luconi L, Giambastiani G, Rossin A, Peruzzini M, Golub IE, Filippov OA, Belkova NV, Shubina ES. Ammonia Borane Dehydrogenation Catalyzed by (κ4-EP3)Co(H) [EP3 = E(CH2CH2PPh2)3; E = N, P] and H2 Evolution from Their Interaction with NH Acids. Inorg Chem 2017; 56:4296-4307. [DOI: 10.1021/acs.inorgchem.6b02673] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
63
|
Caporali M, Serrano-Ruiz M, Telesio F, Heun S, Nicotra G, Spinella C, Peruzzini M. Decoration of exfoliated black phosphorus with nickel nanoparticles and its application in catalysis. Chem Commun (Camb) 2017; 53:10946-10949. [DOI: 10.1039/c7cc05906j] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new surface functionalization of exfoliated black phosphorus has been carried out with Ni nanoparticles. The nanohybrid catalyzed the semihydrogenation of phenylacetylene achieving high selectivity to styrene.
Collapse
|
64
|
Mellone I, Gorgas N, Bertini F, Peruzzini M, Kirchner K, Gonsalvi L. Selective Formic Acid Dehydrogenation Catalyzed by Fe-PNP Pincer Complexes Based on the 2,6-Diaminopyridine Scaffold. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00551] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
65
|
Ponikiewski Ł, Kruczyński T, Caporali M, Peruzzini M, Gudat D, Walaszkowska M, Pikies J. Reactions of the Lithiated Diphosphine
t
Bu
2
P–P(SiMe
3
)Li with [(η
6
‐C
6
H
6
)RuCl
2
]
2
in the Presence of Tertiary Phosphines. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
66
|
Barzagli F, Mani F, Peruzzini M. A Comparative Study of the CO2 Absorption in Some Solvent-Free Alkanolamines and in Aqueous Monoethanolamine (MEA). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:7239-7246. [PMID: 27294832 DOI: 10.1021/acs.est.6b00150] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The neat secondary amines 2-(methylamino)ethanol, 2-(ethylamino)ethanol, 2-(isopropylamino)ethanol, 2-(benzylamino)ethanol and 2-(butylamino)ethanol react with CO2 at 50-60 °C and room pressure yielding liquid carbonated species without their dilution with any additional solvent. These single-component absorbents have the theoretical CO2 capture capacity of 0.50 (mol CO2/mol amine) due to the formation of the corresponding amine carbamates and protonated amines that were identified by the (13)C NMR analysis. These single-component absorbents were used for CO2 capture (15% and 40% v/v in air) in two series of different procedures: (1) batch experiments aimed at investigating the efficiency and the rate of CO2 capture; (2) continuous cycles of absorption-desorption carried out in packed columns with absorption temperatures brought at 50-60 °C and desorption temperatures at 100-120 °C at room pressure. A number of different amines and experimental setups gave CO2 capture efficiency greater than 90%. For comparison purposes, 30 wt % aqueous MEA was used for CO2 capture under the same operational conditions described for the solvent-free amines. The potential advantages of solvent-free alkanolamines over aqueous MEA in the CO2 capture process were discussed.
Collapse
|
67
|
Staderini S, Tuci G, D'Angelantonio M, Manoli F, Manet I, Giambastiani G, Peruzzini M, Rossin A. Zinc Coordination Polymers Containing the m-(2-thiazolyl)benzoic Acid Spacer: Synthesis, Characterization and Luminescent Properties in Aqueous Solutions. ChemistrySelect 2016. [DOI: 10.1002/slct.201600331] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
68
|
Rossin A, Peruzzini M. Ammonia–Borane and Amine–Borane Dehydrogenation Mediated by Complex Metal Hydrides. Chem Rev 2016; 116:8848-72. [DOI: 10.1021/acs.chemrev.6b00043] [Citation(s) in RCA: 305] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
69
|
Bertini F, Gorgas N, Stöger B, Peruzzini M, Veiros LF, Kirchner K, Gonsalvi L. Efficient and Mild Carbon Dioxide Hydrogenation to Formate Catalyzed by Fe(II) Hydrido Carbonyl Complexes Bearing 2,6-(Diaminopyridyl)diphosphine Pincer Ligands. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00416] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
70
|
Barzagli F, Mani F, Peruzzini M. Carbon dioxide uptake as ammonia and amine carbamates and their efficient conversion into urea and 1,3-disubstituted ureas. J CO2 UTIL 2016. [DOI: 10.1016/j.jcou.2015.12.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
71
|
Osipova ES, Belkova NV, Epstein LM, Filippov OA, Kirkina VA, Titova EM, Rossin A, Peruzzini M, Shubina ES. Dihydrogen Bonding and Proton Transfer from MH and OH Acids to Group 10 Metal Hydrides [(tBuPCP)MH] [tBuPCP = κ3-2,6-(tBu2PCH2)2C6H3; M = Ni, Pd]. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
72
|
Serrano-Ruiz M, Caporali M, Ienco A, Piazza V, Heun S, Peruzzini M. The Role of Water in the Preparation and Stabilization of High-Quality Phosphorene Flakes. ADVANCED MATERIALS INTERFACES 2016; 3:1500441. [PMID: 27134812 PMCID: PMC4845640 DOI: 10.1002/admi.201500441] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 09/27/2015] [Indexed: 05/19/2023]
Abstract
The stability of phosphorene is shown to be degraded by water. However, the presence of a small amount of water allows the synthesis of high-quality material in liquid exfoliation of black phosphorus using dimethylsulfoxide as solvent. A phosphorus/water molar ratio between 1.5 and 14 maximizes the quality of the phosphorene flakes and their stability.
Collapse
|
73
|
Delgado Calvo F, Mirabello V, Caporali M, Oberhauser W, Raltchev K, Karaghiosoff K, Peruzzini M. A straightforward access to ruthenium-coordinated fluorophosphines from phosphorous oxyacids. Dalton Trans 2016; 45:2284-93. [DOI: 10.1039/c5dt04624f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
For the first time, it has been shown the deoxofluorination of metal-coordinated phosphorous oxyacids is feasible using a safe and environmentally friendly “F” source and affords fluorophosphines in a mild and selective way.
Collapse
|
74
|
Passaglia E, Cicogna F, Lorenzetti G, Legnaioli S, Caporali M, Serrano-Ruiz M, Ienco A, Peruzzini M. Novel polystyrene-based nanocomposites by phosphorene dispersion. RSC Adv 2016. [DOI: 10.1039/c6ra10133j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polystyrene-based phosphorene nanocomposites were prepared by a solvent blending procedure allowing the embedding of black phosphorus (BP) nanoflakes in the polymer matrix.
Collapse
|
75
|
Mellone I, Bertini F, Peruzzini M, Gonsalvi L. An active, stable and recyclable Ru(ii) tetraphosphine-based catalytic system for hydrogen production by selective formic acid dehydrogenation. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01219a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Efficient catalytic formic acid dehydrogenation was achieved with Ru(ii) complexes ofmeso-tetraphos-1 under batch and continuous feed conditions.
Collapse
|