Silver coordination complexes of 2-(diphenylphosphinomethyl)aminopyridine with weakly interacting counterions

Penney, Marissa K.; Potter, Chelsea; Burroughs, Mark; Klausmeyer, Kevin K.

doi:10.1016/j.poly.2015.09.048

Cited by 6 publications

(8 citation statements)

References 44 publications

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“…These studies show that heptadentate N–P scaffold VI is an excellent scaffold for the stabilization of species with both U–M and RE–M bonds. Recently, both the groups of Cui and Lu utilized methylene connected N–CH 2 –P ligands to synthesize a series of complexes with RE–M bonds, which display short metal–metal distances and excellent catalytic reactivity in alkyne hydrogenation. ,, We try to use the 2-(diphenylphosphinomethyl)aminopyridine ligand VII to synthesize complexes with Ce–M bonds. Complex 4 supported by ligand VII was synthesized by amine elimination between Ce[N(TMS) 2 ] 3 and PyNHCH 2 PPh 2 (Scheme ) and was isolated as a yellow solid in 96% yield.…”

Section: Resultsmentioning

confidence: 99%

Heterometallic Clusters with Cerium–Transition-Metal Bonding Supported by Nitrogen–Phosphorus Ligands

Sun,

Shen,

Rajeshkumar

et al. 2023

Inorg. Chem.

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Ligands are known to play a crucial role in the construction of complexes with metal–metal bonds. Compared with metal–metal bonds involving d-block transition metals, knowledge of the metal–metal bonds involving f-block rare-earth metals still lags far behind. Herein, we report a series of complexes with cerium–transition-metal bonds, which are supported by two kinds of nitrogen–phosphorus ligands N[CH2CH2NHPiPr2]3 (VI) and PyNHCH2PPh2 (VII). The reactions of zerovalent group 10 metal precursors, Pd(PPh3)4 and Pt(PPh3)4, with the cerium complex supported by VI generate heterometallic clusters [N{CH2CH2NPiPr2}3Ce(μ-M)]2 (M = Pd, 2 and M = Pt, 3) featuring four Ce–M bonds; meanwhile, the bimetallic species [(PyNCH2PPh2)3Ce-M] (M = Ni, 5; M = Pd, 6; and M = Pt, 7) with a single Ce–M bond were isolated from the reactions of the cerium precursor 4 supported by VII with Ni(COD)2, Pd(PPh3)4, or Pt(PPh3)4, respectively. These complexes represent the first example of species with an RE–M bond between Ce and group 10 metals, and 2 and 3 contain the largest number of RE–M donor/acceptor interactions ever to have been observed in a molecule.

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Section: Resultsmentioning

confidence: 99%

Heterometallic Clusters with Cerium–Transition-Metal Bonding Supported by Nitrogen–Phosphorus Ligands

Sun,

Shen,

Rajeshkumar

et al. 2023

Inorg. Chem.

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“…In the compound, the C5-N9 (1.4137 Å) is typical single bond which is very close to the calculated values in all methods. The calculated bond length of C19-N20 and (1.3467 Å) is shorter than C24N55 (1.3698 Å)bond length, but significantly longer than the typical C=N double bond since the conjugation effects [52,53].…”

mentioning

confidence: 77%

Spectrometric measurements and DFT studies on new complex of copper (II) with 2-((E)-9-ethyl-3-(2-(6-(4-methylpyridin-2-yl)pyridin-3-yl)vinyl)-9H-carbazole

Zhang

Zhao

et al. 2016

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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The molecular structure of a new complex of copper (II) with (E)-9-ethyl-3-(2-(6-(4-methylpyridin-2-yl)pyridin-3-yl)vinyl)-9H-carbazole ([Cu2(emppc)2Cl2]Cl2) was optimized with B3LYP/LanL2DZ, PBE1PBE/LanL2DZ and M062X/LanL2DZ theoretical level. The ligand, (E)-9-ethyl-3-(2-(6-(4-methylpyridin-2-yl)pyridin-3-yl)vinyl)-9H-carbazole (emppc), binds to Cu(II) ions with a bi-dentate mode, two Cl(-) serve as bridging ligand, each Cu(II) ion has a highly distorted tetrahedron coordination geometry. With M062X/LanL2DZ theoretical level, the calculated interaction energies of Cu(II) with coordination atoms N are between 183.3-200.0kJmol(-1) for α spin and 319.4-324.9kJmol(-1) for β spin, and interaction energies of Cu(II) with coordination atoms Cl atom are 248.0-252.4kJmol(-1) for α spin and 332.6-333.6kJmol(-1) for β spin. The experimental Fourier transform infrared spectrum was assigned. The calculated IR based on B3LYP/LanL2DZ, PBE1PBE/LanL2DZ and M062X/LanL2DZ methods were performed and compared with experimental results. The UV-Vis experimental spectra of [Cu2(emppc)2Cl2]Cl2 was measured in methanol solution. The calculated electronic spectrum was performed with TD/M062X and PCM-TD/M062X methods with LanL2DZ basis set. The nature bond orbital analysis and temperature dependence of the thermodynamic properties were calculated with the same methods.

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“…The literature has provided limited examples of luminescent Ag(I) trigonal complexes. Most of them are bimetallic with a diphosphine bridge [21][22][23][24][25][26][27], while mononuclear ones are even rarer [28][29][30][31]. Durini et al recently reported several heteroleptic complexes of Ag(I) bearing the N^N ligand 2-(1-(pyridin-2-yl)imidazo [1,5-a]pyridin-3-yl) phenol and various monodentate phosphine ligands.…”

Section: Characterization With Nmr Spectroscopymentioning

confidence: 99%

“…1 H-NMR data (δ,ppm) for L/PPh 3 , and complex (E,E and E, Z isomers). Additional information concerning the Ag(I) coordination sphere and geometry was obtained through 31 P-NMR spectroscopy. The spectrum of 1, recorded in CDCl 3 , is shown in Figure 3.…”

Section: Characterization With Nmr Spectroscopymentioning

confidence: 99%

Solution-State Studies, X-ray Structure Determination and Luminescence Properties of an Ag(I) Heteroleptic Complex Containing 2,9-Bis(styryl)-1,10-phenanthroline Derivative and Triphenylphosphine

Glykos,

Plakatouras,

Malandrinos

2023

Inorganics

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A novel heteroleptic Ag(I) compound, formulated as [AgL(PPh3)]BF4 (1) (where L represents 2,9-bis((E)-4-methoxystyryl)-1,10-phenanthroline and PPh3 stands for triphenylphosphine), was successfully synthesized and thoroughly characterized. The compound’s stability in solution was confirmed through 1D and 2D nuclear magnetic resonance (NMR). The photo-irradiation of the complex in a CDCl3 solution, utilizing a common portable UV lamp emitting at λ = 365 nm, led to the partial transformation of the E,E-geometric isomer to E,Z, ultimately yielding a 1:1.4 molar ratio of isomers. Its molecular structure was determined via X-ray crystallography, while molecular packing was assessed using Hirshfeld calculations. The most notable interactions (51%) within the cationic inner sphere involved H···H bonds. The photophysical characteristics of the complex and L were evaluated both in the solid state and in solution (dichloromethane). Compound 1 is a weak emitter, with photoluminescence quantum yields of 8.6% and 4.3% in solution and the solid state, respectively.

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Silver coordination complexes of 2-(diphenylphosphinomethyl)aminopyridine with weakly interacting counterions

Cited by 6 publications

References 44 publications

Heterometallic Clusters with Cerium–Transition-Metal Bonding Supported by Nitrogen–Phosphorus Ligands

Heterometallic Clusters with Cerium–Transition-Metal Bonding Supported by Nitrogen–Phosphorus Ligands

Spectrometric measurements and DFT studies on new complex of copper (II) with 2-((E)-9-ethyl-3-(2-(6-(4-methylpyridin-2-yl)pyridin-3-yl)vinyl)-9H-carbazole

Solution-State Studies, X-ray Structure Determination and Luminescence Properties of an Ag(I) Heteroleptic Complex Containing 2,9-Bis(styryl)-1,10-phenanthroline Derivative and Triphenylphosphine

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