Synthesis and structural characterisation of lithium and sodium 2,6-dibenzylphenolate complexes

Cole, Marcus L.; Junk, Peter Courtney; Proctor, Kathryn Marie; Scott, Janet L.; Strauss, Chris

doi:10.1039/b602706g

Cited by 21 publications

(16 citation statements)

References 64 publications

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“…The O–Na–O angles within the Na 4 O 4 cube are between 88.79(8) and 95.45(8)° (Table 5). The overall molecular structure of 8 is quite comparable with those reported for [Na( μ 3 ‐Ombp)(DME)] 4 23 and [Na(OC 6 H 4 Me‐4)(dme)] 4 24. In contrast to cage compound 8 , in these latter compounds each metal atom is ligated to a solvent molecule.…”

Section: Resultssupporting

confidence: 74%

“…Additional intramolecular bonding as in 8 is also observed in the structures of [Na 4 (salphen) 2 (dme) 2 ] and [Na 4 (salen) 2 (dme) 2 ] 26, where only two of the alkali metals are bonded to the Schiff base, whereas the other two complete their coordination sphere with the oxygen atom of a dme donor. The Na–OC(C 4 H 5 S) 3 bond lengths lie in the range found for [Na(OC 6 H 4 Me‐4)(dme)] 4 [2.314(0) Å] 24 and [Na( μ 3 ‐Ombp)(DME)] 4 (2.33 Å) 23, although the O–Na–O and Na–O–Na angles are different. These variations of the angles can be explained by the steric difference of the ligands and solvents ligated to the sodium atoms.…”

Section: Resultsmentioning

confidence: 59%

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Syntheses, Crystal Structures, and Physico‐Chemical Studies of Sodium and Potassium Alcoholates Bearing Thienyl Substituents and their Derived Luminescent Samarium(III) Alkoxides

Veith

Belot

Hüch

et al. 2010

Zeitschrift anorg allge chemie

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The synthesis, structural characterisation, electrochemistry, and luminescence properties of a series of alkali metal alcoholates and samarium(III) alkoxides with thiophene-based OR substituents are presented. The alkali metal alcoholates 7-15 were obtained by deprotonation of the carbinol with NaH or KH. Their molecular structures consist of tetranuclear alkali metal alcoholates with a distorted cubane-like M 4 O 4 core (Xray structure analyses). Each alkali metal is surrounded by three carbinolate ligands and (depending on the derivative) by additional tetrahydrofuran molecules. The mononuclear samarium alkoxides {Sm[OC(C 4 H 3 S) 3 ] 3 (thf) 3 }·thf (16) and {Sm[OC(C 16 H 13 S)] 3 (thf) 3 }·thf (17) were synthesised by the salt metathesis reactions between {[KOC(C 4 H 3 S) 3 ] 4 (thf) 2 }·thf (7), [NaOC(C 4 H 3 S) 3 ] 4 (thf) 2 (8) or * Prof. Dr. Dr. h. c. M. Veith E-Mail: Michael.Veith@inm-gmbh.de [a] www.zaac.wiley-vch.de 2263 [NaOC(C 4 H 3 S) 3 ] 4 (thf) 2 (8): All NaH had reacted. The solvent was evaporated; a solid was obtained, from which colorless crystals could be obtained in thf at 5°C. Yield 15 %, 243 mg. 1 H NMR (thf/C 6 D 6 ): δ = 6.9 (dd, 3 J H5-H4 = 4.9 Hz and 4 J H5-H3 = 1.2 Hz, 12H, 5-H), 6.8 (dd, 3 J H3-H4 = 3.4 Hz and 4 J H3-H5 = 1.2 Hz, 12H, 3-H), 6.7 (dd, 3 J H4-H3 = 3.7 Hz and 3 J H4-H5 = 4.9 Hz, 12H, 4-H). C 60 H 52 O 6 S 12 Na 4 : calcd. C 53.50; H 3.86 %; found C 52.24; H 3.56 %. [NaOC(C 14 H 11 S 2 )] 4 (thf) 2 (10): The unreacted NaH was filtered. The solvent was slowly evaporated, a light-brown solid precipitated, which was separated from the liquid residue. The isolated yield is 32 % (529 mg). 1 H NMR (thf/C 6 D 6 ): δ = 7.6 (dd, 3 J H5-H4 = 6.6 Hz and 4 J H5-H3 = 1.3 Hz, 8H, 5-H Th), 7.0 (m, 28 H, 4-H, Ph), 6.7 (dd, 3 J H4-H3 = 4.0 Hz, 8 H, 3-H Th). C 68 H 60 O 6 S 8 Na 4 : calcd. C 61.81; H 4.54 %; found C 60.61; H 4.39 %.[NaOC(C 17 H 15 S)] 4 (thf) 2 (13): The suspension turned into a solution.The solvent was slowly evaporated, a white solid precipitated, which

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Section: Resultssupporting

confidence: 74%

Section: Resultsmentioning

confidence: 59%

Syntheses, Crystal Structures, and Physico‐Chemical Studies of Sodium and Potassium Alcoholates Bearing Thienyl Substituents and their Derived Luminescent Samarium(III) Alkoxides

Veith

Belot

Hüch

et al. 2010

Zeitschrift anorg allge chemie

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“…This is also characteristic of related compounds. [18][19][20] The distance between the sodium atoms in dimer 2 is 2.7371(17) Å. This value slightly exceed the Na…Na distances in the complexes where sodium atoms are connected only due to two μ 2 -OPhbridging fragments (2.955-3.326 Å).…”

Section: Resultsmentioning

confidence: 90%

“…These values slightly exceed the Na-O distances in the complexes where sodium atoms are connected only due to μ 2 -OPh-bridging fragments with various substituents in the aromatic ring (2.2016(17)-2.2847(10) Å). [16][17][18] Due to the coordination nature of Na-μ 2 -N and Na-O(DME) interactions, corresponding distances in 2 vary over a wider range. This is also characteristic of related compounds.…”

Section: Resultsmentioning

confidence: 99%

“…This value slightly exceed the Na…Na distances in the complexes where sodium atoms are connected only due to two μ 2 -OPhbridging fragments (2.955-3.326 Å). [16][17][18] It is interesting to note that the uncoordinated DME molecules in crystal of 2 are oriented by oxygen atoms to hydrogen atoms of the AcrBr ligand. The distances between the oxygen and hydrogen atoms are 2.663 and 2.670 Å.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis, Structure and Luminescent Properties of Rare‐Earth‐Metal Oxyacridinates

et al. 2021

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Complexes of Sc, La, Sm, Gd, Tb and Yb with 1,3-di-tert-butyl-7methylacridin-4-olate (Acr Me ) and 1,3-di-tert-butyl-7-bromoacridin-4-olate (Acr Br ) ligands were obtained by reactions of respective acridinols with cyclopentadienides or tris (trimethylsilyl)amides of rare earth metals or by metathesis of metal chlorides with Na(Acr R ). The Sc and La complexes with Acr Me ligands revealed photo-and electroluminescence of moderate intensity while the Sm, Gd, and Tb complexes, as well as all complexes with Akr Br ligands, turned out to be luminescent inactive. The La(Akr Br ) 3 and Yb(Acr Br ) 3 complexes showed photovoltaic properties. The best results of energy conversion were achieved on three-layer model devices containing a lanthanum complex as a photoactive material.

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Sodium Cation Migration Above the Diimine π‐System of Solvent Coordinated dpp‐BIAN Sodium Aluminum Complexes (dpp‐BIAN=1,2‐Bis[(2,6‐diisopropylphenyl)imino]acenaphthene)

Schumann

Hummert

Lukoyanov

et al. 2007

Chemistry A European J

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The reactions of the disodium salt of the 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (dpp-BIAN) ligand with one equivalent of Me2AlCl in diethyl ether, toluene, and benzene produced the complexes [Na(Et2O)2(dpp-BIAN)AlMe2] (1), [Na(eta6-C7H8)(dpp-BIAN)AlMe2] (2) and [Na(eta6-C6H6)(dpp-BIAN)AlMe2] (3), respectively. Recrystallization of 1 from hexane afforded solvent-free [{Na(dpp-BIAN)AlMe2}n] (4) or [Na(Et2O)(dpp-BIAN)AlMe2] (5) depending on the temperature of the solvent. The molecular structures of 1-5 have been determined by single-crystal X-ray diffraction. The sodium cation coordinates either one of the naphthalene rings (1) or the diimine part of the dpp-BIAN ligand (2-5). In the complexes 2 and 3, the sodium cation additionally coordinates the toluene (2) or benzene molecule (3) in an eta6-fashion.

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Synthesis and structural characterisation of lithium and sodium 2,6-dibenzylphenolate complexes

Cited by 21 publications

References 64 publications

Syntheses, Crystal Structures, and Physico‐Chemical Studies of Sodium and Potassium Alcoholates Bearing Thienyl Substituents and their Derived Luminescent Samarium(III) Alkoxides

Syntheses, Crystal Structures, and Physico‐Chemical Studies of Sodium and Potassium Alcoholates Bearing Thienyl Substituents and their Derived Luminescent Samarium(III) Alkoxides

Synthesis, Structure and Luminescent Properties of Rare‐Earth‐Metal Oxyacridinates

Sodium Cation Migration Above the Diimine π‐System of Solvent Coordinated dpp‐BIAN Sodium Aluminum Complexes (dpp‐BIAN=1,2‐Bis[(2,6‐diisopropylphenyl)imino]acenaphthene)

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