scholarly journals Solid State Structure and Solution Thermodynamics of Three-Centered Hydrogen Bonds (O∙∙∙H∙∙∙O) Using N-(2-Benzoyl-phenyl) Oxalyl Derivatives as Model Compounds

Molecules ◽  
2014 ◽  
Vol 19 (9) ◽  
pp. 14446-14460 ◽  
Author(s):  
Carlos Gómez-Castro ◽  
Itzia Padilla-Martínez ◽  
Efrén García-Báez ◽  
José Castrejón-Flores ◽  
Ana Peraza-Campos ◽  
...  
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Solution Thermodynamics ◽  
State Structure ◽  
Model Compounds ◽  
Solid State Structure

Synthesis and Solid-State Structure of (4-Hydroxy-3,5-diiodophenyl)phosphine Oxides. Dimeric Motifs with the Assistance of O-H···O=P Hydrogen Bonds

2015 ◽  
Vol 19 (5) ◽  
pp. 469-474 ◽  
Author(s):  
Nicholas Bewick ◽  
Agata Arendt ◽  
Yan Li ◽  
S.awomir Szafert ◽  
Tadeusz Lis ◽  
...  
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Phosphine Oxides ◽  
State Structure ◽  
Solid State Structure

Notizen: Solid State Structure of N,N-Dibenzylhydroxylamine

1995 ◽  
Vol 50 (4) ◽  
pp. 699-701 ◽  
Author(s):  
Norbert W. Mitzel ◽  
Jürgen Riede ◽  
Klaus Angermaier ◽  
Hubert Schmidbaur
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Single Crystal ◽  
Unit Cell ◽  
Monoclinic Space Group ◽  
State Structure ◽  
X Ray Diffraction ◽  
Space Group ◽  
Solid State Structure ◽  
X Ray

The solid-state structure of N,N-dibenzylhydroxylamine (1) has been determined by single crystal X-ray diffraction. The compound crystallizes in the monoclinic space group P 21/n with four formula units in the unit cell. N,N-dibenzylhydroxylamine dimerizes to give N2O2H2 sixmembered rings as a result of the formation of two hydrogen bonds O - H ··· N in the solid state.

The interplay of hydrogen bonds in the solid state structure of NH-pyrazoles bearing cyano and amino substituents

2012 ◽  
Vol 1014 ◽  
pp. 63-69 ◽  
Author(s):  
Elena E. Emelina ◽  
Alexander A. Petrov ◽  
Alexandra O. Borissova ◽  
Dmitriy V. Filyukov ◽  
Mikhail Yu. Antipin
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
State Structure ◽  
Solid State Structure

scholarly journals 2,5-Dimethylbufotenine and 2,5-dimethylbufotenidine: novel derivatives of natural tryptamines found in Bufo alvarius toads

2021 ◽  
Vol 77 (2) ◽  
pp. 190-194
Author(s):  
Duyen N. K. Pham ◽  
Andrew R. Chadeayne ◽  
James A. Golen ◽  
David R. Manke
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
State Structure ◽  
Solid State Structure ◽  
Π Interactions ◽  
Iodide Anion ◽  
Derivatives Of

The solid-state structure of the bufotenine derivative bis(5-methoxy-2,N,N-trimethyltryptammonium) (5-MeO-2-Me-DMT) fumarate (systematic name: bis{[2-(5-methoxy-2-methyl-1H-indol-3-yl)ethyl]dimethylazanium} (2E)-but-2-enedioate), 2C14H21N2O+·C4H2O4 2−, the bufotenidine derivative 5-methoxy-2,N,N,N-tetramethyltryptammonium (5-MeO-2-Me-TMT) iodide {systematic name: [2-(5-methoxy-2-methyl-1H-indol-3-yl)ethyl]trimethylazanium iodide}, C15H23N2O+·I−, and the hydrate of the same {systematic name: [2-(5-methoxy-2-methyl-1H-indol-3-yl)ethyl]trimethylazanium iodide monohydrate}, C15H23N2O+·I−·H2O, are reported. The structure of 5-MeO-2-Me-DMT fumarate possesses one tryptammonium cation and a half of a fumarate dianion in the asymmetric unit, linked together by N—H...O hydrogen bonds in infinite two-dimensional networks parallel to the (101) plane. The structure of 5-MeO-2-Me-TMT iodide possesses one tryptammonium cation and one iodide anion in the asymmetric unit. The ions are linked via N—H...I hydrogen bonds, and indoles are coupled in dimers through π–π interactions. The hydrate of 5-MeO-2-Me-TMT iodide possesses one tryptammonium cation, one iodide anion and one water molecule in the asymmetric unit. It shows N—H...I and O—H...I hydrogen bonds that couple the tryptammonium cations into dimers.

Beeinflussen interne N-Donorliganden Hydrolyse-und Kondensationsreaktionen von Chlorsilanen? / Do Internal N-Donor Ligands Influence the Hydrolysis and Condensation Reactions of Chlorosilanes?

1993 ◽  
Vol 48 (11) ◽  
pp. 1625-1634 ◽  
Author(s):  
Norbert Auner ◽  
Reiner Probst ◽  
Claus-Rüdiger Heikenwälder ◽  
Eberhardt Herdtweck ◽  
Siegfried Gamper ◽  
...  
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Hydrogen Chloride ◽  
Monoclinic Space Group ◽  
State Structure ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
Solid State Structure ◽  
Silanol Groups ◽  
Compound C

The reaction of [C6H4CH2N(CH3)2]2SiCl2 (1) with hydrogen chloride gives the singly protonated adduct 2. Its solid state structure has been determined by single crystal X-ray diffraction. Centrosymmetric 2 is orthorhombic, space group Pbca, a = 1694.9(2), b = 1161.7(2), c = 2501.7(3) pm; Z = 8. Controlled hydrolysis of 1 leads to the 1,3-siloxanediol 4, probably via the precursors 3a-3c which could not be isolated. The hydrogen chloride formed during the hydrolysis protonates two of the dimethylamino groups, while the other two dimethylamino functions form hydrogen bonds to the silanol groups. Centrosymmetric 4: monoclinic, space group P21/c, a = 980.3(1), b = 933.9(1), c = 2177.5(2) pm, β = 99.94(1)°; Ζ = 4. If the hydrolysis is carried out in the presence of lithium naphthalenide, the metalated compound {[C6H4CH2N(CH3)2]2Si(OLi)OH}4•2 LiCl•2CHCl3 (5) is obtained. The solid state structure of 5 exhibits two cube-like subunits which are held together by nitrogen and oxygen lithium contacts, hydrogen bonds between silanol groups and nitrogen atoms, and which are linked by the four silicon centres. Tetrameric 5: monoclinic, space group C2/C or Cc; a = 1523.6(2), b = 2440.2(1), c = 2534.8(2) pm, β = 93.83(3)°; Ζ = 8. These results show that the intramolecular donor capabilities of the dimethylaminobenzyl ligand at silicon can stabilize 1,3-siloxanediol and SiOLi substructures. Compounds like 1 serve as model compounds for the controlled formation of precursors for silicone synthesis.

Finding a single-molecule receptor for citramalic acid through supramolecular chelation

2015 ◽  
Vol 93 (8) ◽  
pp. 822-825 ◽  
Author(s):  
Christer B. Aakeröy ◽  
Michelle Smith ◽  
John Desper
Keyword(s):  
Hydrogen Bond ◽  
Solid State ◽  
Hydrogen Bonds ◽  
Single Molecule ◽  
Conformational Flexibility ◽  
State Structure ◽  
Hydrogen Bond Acceptor ◽  
Solid State Structure ◽  
Face To Face ◽  
Hydrogen Bond Donors

We have demonstrated that the tritopic hydrogen-bond acceptor 1,3,5-(5,6-dimethylbenzimidazol-1-yl)-2,4,6-trimethylbenzene can act as a perfectly complementary receptor for citramalic acid. The solid-state structure of the cocrystal of the two components show that they form 1:1 pairs where each pair is held together by three near-linear O–H···N hydrogen bonds in a converging manner. The conformational flexibility of both species is apparently no hindrance to the formation of discrete dimeric “cups” wherein each species presents three hydrogen-bond donors/acceptors in a face-to-face orientation.

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