Carbon dioxide fixaion by lathanide complexes

Bochkarev, M. N.; Федорова, Э. А.; Rad'kov, Yu.F.; Khorshev, S. Ya.; Kalinina, G. S.; Razuvaev, G. A.

doi:10.1016/s0022-328x(00)99264-7

Cited by 31 publications

(12 citation statements)

References 4 publications

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“…Again, no direct metal–metal bond was proven. Reactivity studies showed that the DME adducts treated with excess [Ln{N(SiMe 3 ) 2 } 3 ] yield commutation products,41 whereas reaction with CO 2 leads to (partly reversible) carbon dioxide fixation 42. When Lappert and Power43 published a report on the ligand behavior of bis(trimethylsilyl)amides of divalent Group 14 elements towards various transition metals, they also claimed a scandium adduct formulated as [Cp 2 Sc(Me){Sn(N(SiMe 3 ) 2 ) 2 }].…”

Section: Known Compoundsmentioning

confidence: 99%

f‐Element–Metal Bonding and the Use of the Bond Polarity To Build Molecular Intermetalloids

Oelkers

Butovskii

Kempe

2012

Chemistry A European J

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Metal-metal bonding in heterobimetallic complexes is of fundamental interest due to its implications to both bonding theory and new reactivities. In this Concept, structurally authenticated molecular compounds with direct bonds between rare-earth metals or actinoids and transition or main group metals are summarized. Special attention is given to the use of bond polarity as a tool for designing molecular intermetalloids incorporating rare-earth atoms and transition metals.

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Section: Known Compoundsmentioning

confidence: 99%

f‐Element–Metal Bonding and the Use of the Bond Polarity To Build Molecular Intermetalloids

Oelkers

Butovskii

Kempe

2012

Chemistry A European J

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“…The IR spectra of the products differ significantly from the results reported for carboxylation reactions in solution or in sealed ampules. [35,41] The cerium precursor Ce-BTMSA is activated with CO 2 in the first step. According to the results of the elemental analysis two molecules of CO 2 are absorbed by one molecule of Ce-BTMSA.…”

Section: Resultsmentioning

confidence: 99%

Carbon Dioxide Fixation by Organolanthanides and Thermal Degradation into Amorphous and Higher Condensed Ln/O/C/N Solids

et al. 2006

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Ammine[tris(cyclopentadienyl)]‐, amido[bis(cyclopentadienyl)]lanthanides, and tris[bis(trimethylsilylamido)]cerium have been studied with respect to CO2 absorption under various reaction conditions. Subsequent thermal treatment of these complexes under gaseous and supercritical CO2 yielded new higher condensed lanthanide Ln/O/C/N solids. IR spectroscopic studies of the CO2‐activated species reveal the formation of various oxonitridocarbonates, in particular carbamates (O2CNH2–), imidocarbonates (O2CNH2–), isocyanates (OCN–), and carbonates (CO32–), which function as multidentate linkers between the lanthanide ions. Thereby, inorganic polymers are formed, which represent single‐source precursors for application in various deposition methods and can therefore be utilized as pre‐organized reagents in solid‐state chemistry. In this context, we report on the structural characterization of one of the molecular precursors [Cp3YbNH3] [reticular pseudomerohedral twin, P21/c, a = 826.8(2), b = 1103.8(2), c = 1482.0(3) pm, β = 101.60(3)°, Z = 4, V = 1309.0(5)·106 pm3]. Crystals of [Cp3YbNH3] appear red, orange, yellow, and dark green depending on the orientation under plane‐polarized light (pleochroism).(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)

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“…The phosphonate, pivalate, and carbonate oxygen atoms are intensively coordinated to the edges and the vertexes of the three μ3-OH centered triangles, for example, six oxygen atoms of the two carbonates bind to three vertexes and three edges of the three μ3-OH centered triangles. The carbonates must arise from the atmospheric CO2 fixation [54][55][56][57]. Two different geometries are adopted by the Gd(III) ions in the cluster: whilst Gd2, Gd3 Gd5, Gd6, Gd8, Gd9, and Gd10 exhibit a triangular dodecahedron (D2d) and a Continuous Shape Measure value (CShM) of 1.750, 2.422, 0.804, 2.505, 0.715, 3.236, and 2.316 respectively; Gd1, Gd4, and Gd7 adopt a less regular coordination (muffin, Cs, with a CShM value of 2.776, 1.238 and 1.569) [58].…”

Section: Description Of the Structuresmentioning

confidence: 99%

Synthesis, Crystal Structures, and Magnetic Properties of Lanthanide (III) Amino-Phosphonate Complexes

Zangana

2018

Magnetochemistry

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Both compounds have been characterized with elemental analysis, single-crystal X-ray diffraction methods, and magnetic measurements. The molecular structure of compounds 1 and 2 reveal two highly unsymmetrical complexes comprising ten lanthanide metal centers, where the lanthanide metal ion centers in the cages are linked through pivalate units and further interconnected by CPO 3 tetrahedra to build the crystal structure. The magnetic behavior of 1 and 2 was investigated between ambient temperature and ca. 2 K, the magnetic measurements for compound 1 suggests antiferromagnetic interactions between the Gd(III) metal ion centers at low temperatures. The large number of isotropic Gd(III) ions comprising 1 makes it a candidate for magnetocaloric applications, thus the magnetocaloric properties of this molecular cage were investigated indirectly through isothermal magnetisation curves. The magnetic entropy change was found to be 34.5 J kg −1 K −1 , making 1 a plausible candidate in magnetic cooling applications.

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Carbon dioxide fixaion by lathanide complexes

Cited by 31 publications

References 4 publications

f‐Element–Metal Bonding and the Use of the Bond Polarity To Build Molecular Intermetalloids

f‐Element–Metal Bonding and the Use of the Bond Polarity To Build Molecular Intermetalloids

Carbon Dioxide Fixation by Organolanthanides and Thermal Degradation into Amorphous and Higher Condensed Ln/O/C/N Solids

Synthesis, Crystal Structures, and Magnetic Properties of Lanthanide (III) Amino-Phosphonate Complexes

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