N,N-Dialkylcarbamato complexes as precursors for the chemical implantation of metal cations on a silica support. Part 3 Palladium

Abis, Luigi; Dell’Amico, Daniela Belli; Busetto, C.; Calderazzo, Fausto; Garbassi, F.; Tomei, Alessandra

doi:10.1039/a804456b

Cited by 21 publications

(8 citation statements)

References 38 publications

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“…In addition, the grafted carbamato complex may undergo subsequent chemical modifications. For instance, noble metals such as Cu, Pd and Pt can be chemically or thermally reduced to give the respective silica-supported metal nanoparticles [361,362,365]. Another post-functionalization strategy entails the introduction of additional ligands by replacement of the residual carbamates, and for instance this method has been adopted to introduce chiral β-diketonates on lanthanide-grafted carbamates for chiroptical luminescence applications [153,363].…”

Section: Other Applicationsmentioning

confidence: 99%

Recent Advances in the Chemistry of Metal Carbamates

et al. 2020

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Following a related review dating back to 2003, the present review discusses in detail the various synthetic, structural and reactivity aspects of metal species containing one or more carbamato ligands, representing a large family of compounds across all the periodic table. A preliminary overview is provided on the reactivity of carbon dioxide with amines, and emphasis is given to recent findings concerning applications in various fields.

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Section: Other Applicationsmentioning

confidence: 99%

Recent Advances in the Chemistry of Metal Carbamates

et al. 2020

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“…(2)]. The structural observations made above, and the distances of Ln-N shown in Figure 3 for all of the complexes characterised, could give a reasonable explanation for this difference in the reactivity of 1-Sm, 1-Gd, 1-Dy, 1-Ho, 1-Er and 1-Yb towards pyrolysis to the amido derivatives.…”

Section: -Cyclopentadienyl)-a C H T U N G T R E N N U N G Ytterbiuma mentioning

confidence: 76%

“…A C H T U N G T R E N N U N G [Cp 2 LnNH 2 ] + CpH. The Gibbs free energy of this reaction was calculated at room temperature and at 300 8C (Table 8).…”

Section: A C H T U N G T R E N N U N Gmentioning

confidence: 99%

“…Although oxidic rare-earth materials are still dominant, [1][2][3][4][5][6][7] nitridic rare-earth compounds are gaining more and more importance as they often exhibit even better material properties. Advances in the fields of semi-and superconductivity, [8][9][10] heterogeneous and homogeneous catalysis, [11][12][13] and the development of novel phosphor materials for highly efficient white-light-emitting phosphor-converted diodes [14,15] are prominent examples that prove that nitride chemistry of the rare-earth elements is full of exciting reactions and useful applications.…”

Section: Introductionmentioning

confidence: 99%

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Nanocrystalline Lanthanide Nitride Materials Synthesised by Thermal Treatment of Amido and Ammine Metallocenes: X‐ray Studies and DFT Calculations

Baisch

Pagano

Zeuner

et al. 2006

Chemistry A European J

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The decomposition process of ammine lanthanide metallocenes was studied by X-ray diffractometry, spectroscopy and theoretical investigations. A series of ammine-tris(eta(5)-cyclopentadienyl)lanthanide(III) complexes 1-Ln (Lanthanide (Ln)=Sm, Gd, Dy, Ho, Er, Yb) was synthesised by the reaction of [Cp(3)Ln] complexes (Cp=cyclopentadienyl) with liquid ammonia at -78 degrees C and structurally characterised by X-ray diffraction methods, mass spectrometry and vibrational (IR, Raman) spectroscopy. Furthermore, amido-bis(eta(5)-cyclopentadienyl)lanthanide(III) complexes 2-Ln (Ln=Dy, Ho, Er, Yb) were synthesised by heating the respective ammine adduct 1-Ln in an inert gas atmosphere at temperatures of between 240 and 290 degrees C. X-ray diffraction studies, mass spectrometry and vibrational (IR, Raman) spectroscopy were carried out for several 2-Ln species and proved the formation of dimeric mu(2)-bridged compounds. Species 1-Ln are highly reactive coordination compounds and showed different behaviour regarding the decomposition to 2-Ln. The reaction of 1-Ln and 2-Ln with inorganic bases yielded lanthanide nitride LnN powders with an estimated crystallite size of between 40 and 90 nm at unprecedented low temperatures of 240 to 300 degrees C. Temperature-dependent X-ray powder diffraction and transmission electron microscopy (TEM) investigations were performed and showed that the decomposition reaction yielded nanocrystalline material. Structural optimisations were carried out for 1-Ln and 2-Ln by employing density functional (DFT) calculations. A good agreement was found between the observed and calculated structural parameters. Also, Gibbs free energies were calculated for 1-Ln, 2-Ln and the pyrolysis reaction to the nitride material, and were found to fit well with the expected ranges.

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“…It has been shown that cationic implantation onto silica can be effectively carried out with group‐four metals, niobium and tantalum, tin(IV), palladium(II), platinum(II), gold(I), copper(II) and lanthanides, by using N , N ‐dialkylcarbamato complexes of the general formula M(O 2 CNR 2 ) n as precursors.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Structural Characterization of Non‐Homoleptic Carbamato Complexes of V^V and W^VI and Their Facile Implantation onto Silica Surfaces

et al. 2018

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The vanadium(V) amido-carbamato derivatives VO(NR 2 )(O 2 CNR 2 ) 2 (R = Me, 1; Et, 2) are obtained by the reaction of VOCl 3 with preformed carbamato species (ammonium or sodium carbamates). The synthesis of an ionic ammonium chlorido-amide of W VI , 3, is performed using WOCl 4 and diethylamine as precursors. Moreover, the reactivity of 3 with CO 2 is investigated. Mixed W VI chlorido-carbamato compounds, 4 and 5, are obtained by the reaction of WOCl 4 with stoichiometric amounts of sodium diethylcarbamate. All of the products are [a]

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N,N-Dialkylcarbamato complexes as precursors for the chemical implantation of metal cations on a silica support. Part 3 Palladium

Cited by 21 publications

References 38 publications

Recent Advances in the Chemistry of Metal Carbamates

Recent Advances in the Chemistry of Metal Carbamates

Nanocrystalline Lanthanide Nitride Materials Synthesised by Thermal Treatment of Amido and Ammine Metallocenes: X‐ray Studies and DFT Calculations

Synthesis and Structural Characterization of Non‐Homoleptic Carbamato Complexes of V^V and W^VI and Their Facile Implantation onto Silica Surfaces

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N,N-Dialkylcarbamato complexes as precursors for the chemical implantation of metal cations on a silica support. Part 3 Palladium

Cited by 21 publications

References 38 publications

Recent Advances in the Chemistry of Metal Carbamates

Recent Advances in the Chemistry of Metal Carbamates

Nanocrystalline Lanthanide Nitride Materials Synthesised by Thermal Treatment of Amido and Ammine Metallocenes: X‐ray Studies and DFT Calculations

Synthesis and Structural Characterization of Non‐Homoleptic Carbamato Complexes of VV and WVI and Their Facile Implantation onto Silica Surfaces

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Synthesis and Structural Characterization of Non‐Homoleptic Carbamato Complexes of V^V and W^VI and Their Facile Implantation onto Silica Surfaces