Preparation and Structure of Lithium Bis[cis-ethene-l,2-di(tbutylamido)]gallate(III) Tetrahydrofuran

2001 ◽  
Vol 56 (9) ◽  
pp. 937-939 ◽  
Author(s):  
Eva S. Schmidt ◽  
Norbert W. Mitzel ◽  
Hubert Schmidbaur
Keyword(s):  
Oxygen Atom ◽  
Lithium Atom ◽  
Solvent Molecule ◽  
Lithium Metal ◽  
Gallium Atom ◽  
Cyclic Imides ◽  
Gallium Trichloride ◽  
Diamide Ligands ◽  
By Products ◽  
Metallic Potassium

Abstract The dilithium diamide reagent obtained from N,N′-di(tbutyl)-1,4-diazabutadiene and two equivalents of lithium metal reacts with anhydrous gallium trichloride in tetrahydrofuran / hexane, followed by treatment with metallic potassium, to give the title compound in about 40% yield. Cyclic imides of gallium(III) and gallium(II) are by-products of this process. The structure of Li{[cis-C2H2(NtBu)2]2Ga} has been determined from single crystals containing one mole equivalent of tetrahydrofuran. The gallium atom is chelated by two diamide ligands. One of the five-membered chelate rings is planar while the second one is folded at its nitrogen atoms. The lithium atom is η4 -coordinated to the 1,4-diazabutene(2) unit of this ring and further to the oxygen atom of the solvent molecule.

Rational solvent molecule tuning for high-performance lithium metal battery electrolytes

Nature Energy ◽  
2022 ◽  
Author(s):  
Zhiao Yu ◽  
Paul E. Rudnicki ◽  
Zewen Zhang ◽  
Zhuojun Huang ◽  
Hasan Celik ◽  
...  
Keyword(s):  
High Performance ◽  
Solvent Molecule ◽  
Lithium Metal ◽  
Lithium Metal Battery

Solvent Molecule Cooperation Enhancing Lithium Metal Battery Performance at Both Electrodes

2020 ◽  
Vol 59 (20) ◽  
pp. 7797-7802 ◽  
Author(s):  
Yifang Zhang ◽  
Yiren Zhong ◽  
Zishan Wu ◽  
Bo Wang ◽  
Shuquan Liang ◽  
...  
Keyword(s):  
Solvent Molecule ◽  
Lithium Metal ◽  
Lithium Metal Battery

Synthesis and characterization of some new fluoroquinolone-barbiturate hybrid systems

2015 ◽  
Vol 70 (7) ◽  
pp. 513-517 ◽  
Author(s):  
Kamal Sweidan ◽  
Mustafa M. El-Abadelah ◽  
Salim F. Haddad ◽  
Wolfgang Voelter
Keyword(s):  
Oxygen Atom ◽  
Hybrid Systems ◽  
Solvent Molecule ◽  
Chloride Ion ◽  
Synthesis And Characterization ◽  
Methylene Carbon ◽  
Hybrid Molecules ◽  
Carbonyl Chloride

AbstractNew hybrid molecules containing fluoroquinolone-barbiturate moieties were synthesized via simple routes, followed by characterization using various spectroscopic approaches. The THF solvent molecule was incorporated into compounds 2 and 3 through its oxygen atom based on its nucleophilicity. Facile displacement of the chloride ion in 4-oxoquinoline-3-carbonyl chloride by the nucleophilic methylene carbon of 1,3-dialkylbarbiturate/thiobarbiturate afforded the respective hybrids 5 and 6.

scholarly journals 4-Phenyl-2,5,5a,6,7,8,9,9a-hexahydro-1H-1,5-benzodiazepine-2-thione ethanol monosolvate

IUCrData ◽  
2018 ◽  
Vol 3 (9) ◽  
Author(s):  
Wedad Al Garadi ◽  
Youssef Ramli ◽  
Lhoussaine El Ghayati ◽  
Mohamed El Hafi ◽  
Ahmed Moussaif ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Oxygen Atom ◽  
Title Compound ◽  
Solvent Molecule ◽  
Chair Conformation ◽  
Membered Ring ◽  
Envelope Conformation ◽  
Compound C

In the solvated title compound, C15H18N2S·C2H5OH, the seven-membered ring has a twisted envelope conformation and the cyclohexyl ring has a chair conformation. In the crystal, N—H...O and O—H...S hydrogen bonds as well as C—H...π(ring) interactions form helical chains in which the thione and solvent ethanol molecules alternate. These chains are formed into layers parallel to (101) by inversion-related pairs of N—H...S hydrogen bonds. The ethanol solvent molecule is disordered over two sets of sites [occupancy ratio 0.880 (8): 0.120 (8)] with the oxygen atom in common.

Synthese und Kristallstrukturen der 1,3,4-λ5σ4-Diazaphosphole / Syntheses and Crystal Structures of the 1,3,4-λ5σ4-Diazaphospholes

1993 ◽  
Vol 48 (6) ◽  
pp. 730-736 ◽  
Author(s):  
Gudrun Stieglitz ◽  
Bernhard Neumüller ◽  
Kurt Dehnicke
Keyword(s):  
Nitrogen Atom ◽  
Oxygen Atom ◽  
Crystal Structures ◽  
Structure Determination ◽  
Lithium Atom ◽  
Ion Pair ◽  
Space Group ◽  
X Ray ◽  
Lithium Complex ◽  
Moisture Sensitive

has been prepared by the reaction of Li(DME)[P(t-Bu)2] with benzonitrile in 1,2-dimethoxyethan solution. The compound forms violet, moisture sensitive crystals, which were characterized by an X-ray structure determination [Space group P21/n, Z = 4, 3282 observed unique reflections, R = 0.082. Lattice dimensions at -40°C: a = 851.0(5), b = 1238.0(3), c = 3029.2(4) pm, β = 90.53(4)°]. The compound forms an ion pair, in which the lithium atom is coordinated by two oxygen atoms of a chelating DME molecule, by an oxygen atom of a nonchelating DME molecule, and by the nitrogen atom of the planar diazaphosphole ring in 1-position. The phenyl groups are nearly coplanar with the diazaphosphole ring. is the product of the reaction of the lithium complex with methanol. It forms colourless crystals [Space group Ρ21/n, Ζ = 4, 2015 observed unique reflections, R = 0.068. Lattice dimensions at -80°C: a = 1458.3(2), b = 824.8(1), c = 1716.9(2) pm, β = 105.37(9)°]. The molecules have planar 5 H-diazaphosphole rings.

Solvent Molecule Cooperation Enhancing Lithium Metal Battery Performance at Both Electrodes

2020 ◽  
Vol 132 (20) ◽  
pp. 7871-7876 ◽  
Author(s):  
Yifang Zhang ◽  
Yiren Zhong ◽  
Zishan Wu ◽  
Bo Wang ◽  
Shuquan Liang ◽  
...  
Keyword(s):  
Solvent Molecule ◽  
Lithium Metal ◽  
Lithium Metal Battery

Investigation of the Thionation Reaction of Cyclic Imides

2001 ◽  
Vol 56 (10) ◽  
pp. 1035-1040 ◽  
Author(s):  
A. Orzeszko ◽  
J. K. Maurin ◽  
D. Melon-Ksyta
Keyword(s):  
Oxygen Atom ◽  
Carbonyl Group ◽  
Steric Hindrance ◽  
The Other ◽  
Carbonyl Groups ◽  
Other Hand ◽  
Cyclic Imides ◽  
Lawesson's Reagent ◽  
Main Effects ◽  
High Polarity

A series of monothioimides and dithioimides were synthesised using Lawesson’s reagent. It has been found that two main effects affect thionation reaction. The high polarity of carbonyl groups leads to good yields of mono- and dithioimides. On the other hand, steric hindrance in the vicinity of the carbonyl group strongly inhibits the replacement of the oxygen atom by sulfur.

scholarly journals (4-Carboxybenzyl)triphenylphosphonium hexafluoridophosphate tetrahydrofuran monosolvate

IUCrData ◽  
2019 ◽  
Vol 4 (11) ◽  
Author(s):  
Joseph R. Traver ◽  
Gary L. Guillet ◽  
Patrick C. Hillesheim
Keyword(s):  
Hydrogen Bonding ◽  
Carboxylic Acid ◽  
Oxygen Atom ◽  
Solvent Molecule ◽  
Acid Group ◽  
Asymmetric Unit ◽  
Carboxylic Acid Group ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Phenyl Rings

The title compound, C26H22O2P+·PF6 −·C4H7O, crystallizes as a cation-anion pair with a single solvent molecule in the asymmetric unit. Hydrogen bonding occurs between the carboxylic acid group on the cation and the oxygen atom of the solvent molecule. Longer hydrogen-bonding interactions are observed between fluorine atoms of the anion and H atoms on the phenyl rings of the cation.

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