Crystal Engineering of a New Layered Polyiodide Using 1,9-Diammoniononane as a Flexible Template Cation

2004 ◽  
Vol 59 (10) ◽  
pp. 1114-1117 ◽  
Author(s):  
Guido J. Reiß ◽  
Judith S. Engel
Keyword(s):  
Thermal Analysis ◽  
Hydrogen Bonding ◽  
Raman Spectrum ◽  
Solid State ◽  
Hydrogen Bonds ◽  
Crystal Engineering ◽  
Title Compound ◽  
State Structure ◽  
Cooperative Phenomenon ◽  
Weak Hydrogen Bonds

AbstractThe reaction of 1,9-diaminononane with hydroiodic acid in the presence of iodine gave a compound best described as 1,9-diammoniononane bis-triiodide iodine, (H3N-(CH2)9-NH3)[I3]2 · I2. The structure is built from two crystallographically independent I3− anions, which are connected via secondary I···I interactions to the iodine molecules, and the 1,9-diammonioalkane cations are connected via weak hydrogen bonds to neighbouring iodine atoms. By a cooperative phenomenon, the shape and the functionality of the cation lead to a solid state structure that includes a polyiodide substructure with the formula 2∞[I8]2− or 2∞[I3 · I2 · I3]2−, is best described as a brick-shaped layered array. Its rectangular pores fit excellently with the hydrogen bonding functionality as well as with the conformational needs of the 1,9-diammoniononane template. The Raman spectrum shows typical bands of coordinated triiodide anions and iodine molecules. The thermal analysis (DSC/TG) of the title compound indicates decomposition at temperatures above 210°C.

The Solution and Solid State Structure of L-Carnitine L-Tartrate

1998 ◽  
Vol 53 (8) ◽  
pp. 788-791 ◽  
Author(s):  
Hubert Schmidbaur ◽  
Annette Schier ◽  
Angela Bayler
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Aqueous Solutions ◽  
Tartaric Acid ◽  
Title Compound ◽  
State Structure ◽  
Hygroscopic Properties ◽  
Anions And Cations ◽  
Ionic Components ◽  
Tartrate Anion

Abstract L-Carnitine forms a salt-like 2:1 adduct with L-tartaric acid which crystallizes in the or-thorhombic space group P212121 with Z = 4 formula units in the unit cell. The lattice is composed of an L-tartrate dianion and two crystallographically independent L-carnitinium cations. The two cations show only very minor differences in their conformation. Anions and cations are arranged in separate stacks which are linked via hydrogen bonds. The tartrate anion and the carnitinium cations show standard geometries known from the structures of other salts of these ions, like the L-carnitine component of the R,L-carnitinium chloride or the dianion in alkali tartrates. The title compound has galenic advantages as an L-carnitine drug because of its non-hygroscopic properties. Aqueous solutions have been shown to contain solvated ionic components, i.e. L-tartrate and L-hydrogentartrate anions, L-tartaric acid (15:70:15) and carnitinium cations. The title compound can therefore be classified as a genuine L-carnitinium salt of L-tartaric acid.

Methyl 4-(3-methoxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate

2006 ◽  
Vol 62 (4) ◽  
pp. o1431-o1432 ◽  
Author(s):  
Bing-Jian Yang ◽  
Jian-Jun Li ◽  
Zhen-Hua Li ◽  
Ping Li ◽  
Wei-Ke Su
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Title Compound ◽  
Two Dimensional ◽  
State Structure ◽  
Solid State Structure ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network

The solid-state structure of the title compound, C14H16N2O4, is characterized by hydrogen-bonding interactions, linking the molecules into chains. Hydrogen-bonding interactions between neighbouring chains form a two-dimensional network.

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

2-Hydroxy-3-methoxybenzaldehyde (pyridinium-4-ylcarbonyl)hydrazone chloride hemihydrate

2006 ◽  
Vol 62 (5) ◽  
pp. o2043-o2044 ◽  
Author(s):  
Shao-Wen Chen ◽  
Han-Dong Yin ◽  
Da-Qi Wang ◽  
Xia Kong ◽  
Xiao-Fang Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Compound C

The crystal structure of the title compound, C14H14ClN3O3 +·Cl−·0.5H2O, exhibits O—H...O, C—H...O, C—H...Cl, N—H...Cl and O—H...Cl hydrogen bonds. The chloride anions participate in extensive hydrogen bonding with the aminium cations and link molecules through multiple N—H+...Cl− interactions.

scholarly journals 1,1′,3,3′-Tetramesitylquinobis(imidazole)-2,2′-dithione

IUCrData ◽  
2019 ◽  
Vol 4 (9) ◽  
Author(s):  
Jayaraman Selvakumar ◽  
Kuppuswamy Arumugam
Keyword(s):  
Crystal Structure ◽  
Molecular Weight ◽  
Solid State ◽  
Structural Analysis ◽  
Hydrogen Bonds ◽  
Cell Volume ◽  
Title Compound ◽  
Unit Cell Volume ◽  
Density Peaks ◽  
Solvent Molecules

The solid-state structural analysis of the title compound [systematic name: 5,11-disulfanylidene-4,6,10,12-tetrakis(2,4,6-trimethylphenyl)-4,6,10,12-tetraazatricyclo[7.3.0.03,7]dodeca-1(9),3(7)-diene-2,8-dione], C44H44N4O2S2 [+solvent], reveals that the molecule crystallizes in a highly symmetric cubic space group so that one quarter of the molecule is crystallographically unique, the molecule lying on special positions (two mirror planes, two twofold axes and a center of inversion). The crystal structure exhibits large cavities of 193 Å3 accounting for 7.3% of the total unit-cell volume. These cavities contain residual density peaks but it was not possible to unambiguously identify the solvent therein. The contribution of the disordered solvent molecules to the scattering was removed using a solvent mask and is not included in the reported molecular weight. No classical hydrogen bonds are observed between the main molecules.

scholarly journals 1,4a,7-Trimethyl-7-vinyl-1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydrophenanthrene-1-carboxylic acid

2009 ◽  
Vol 65 (6) ◽  
pp. o1429-o1429
Author(s):  
Zhen-Dong Zhao ◽  
Yu-Xiang Chen ◽  
Yu-Min Wang ◽  
Liang-Wu Bi
Keyword(s):  
Hydrogen Bonding ◽  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Molecular Conformation ◽  
Slash Pine ◽  
Carboxyl Groups ◽  
Isopimaric Acid ◽  
Hydrogen Bonding Interactions ◽  
Cyclohexene Ring

The title compound, also known as isopimaric acid, C20H30O2, was isolated from slash pine rosin. There are two unique molecules in the unit cell. The two cyclohexane rings have classical chair conformations. The cyclohexene ring represents a semi-chair. The molecular conformation is stabilized by weak intramolecular C—H...O hydrogen-bonding interactions. The molecules are dimerized through their carboxyl groups by O—H...O hydrogen bonds, formingR22(8) rings.

scholarly journals Crystal structure of 2-cyano-1-methylpyridinium tetrafluoroborate

2015 ◽  
Vol 71 (10) ◽  
pp. o697-o698 ◽  
Author(s):  
Francesca A. Vaccaro ◽  
Lynn V. Koplitz ◽  
Joel T. Mague
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Solid State ◽  
Three Dimensional ◽  
Asymmetric Unit ◽  
State Structure ◽  
Solid State Structure ◽  
Two Component

The asymmetric unit of the title salt, C7H7N2+·BF4−, comprises two independent but nearly identical formula units. The solid-state structure comprises corrugated layers of cations and anions, formed by C—H...F hydrogen bonding, that are approximately parallel to (010). Further C—H...F hydrogen bonding consolidates the three-dimensional architecture. The sample was refined as a two-component non-merohedral twin.

scholarly journals N,N-Dimethyl-2-[(1E)-({[(methylsulfanyl)methanethioyl]amino}imino)methyl]aniline

IUCrData ◽  
2018 ◽  
Vol 3 (3) ◽  
Author(s):  
Winaki P. Sohtun ◽  
Arunachalam Kannan ◽  
Saravanan Dhandayutham ◽  
Marappan Velusamy
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Tautomeric Form ◽  
Compound C

In the title compound, C11H15N3S2, the dithiocarbazate moiety is rotated by 18.73 (8)° with respect to the benzene ring. The dithiocarbazate group adopts anEconfiguration with respect to the C=N bond of the benzylidene group. Furthermore, in the solid state the compound exists in the thione tautomeric form. In the crystal, molecules are linked by pairs of weak N—H...S hydrogen bonds, forming inversion dimers which are arranged in layers parallel to (010).

scholarly journals catena-Poly[[[bis(acetonitrile-κN)(4,4′-dimethoxy-2,2′-bipyridine-κ2 N,N′)copper(II)]-μ-trifluoromethanesulfonato-κ2 O:O′] trifluoromethanesulfonate]

IUCrData ◽  
2020 ◽  
Vol 5 (10) ◽  
Author(s):  
Rafael A. Adrian ◽  
Diego R. Hernandez ◽  
Hadi D. Arman
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Metal Organic Frameworks ◽  
Starting Material ◽  
Compound A ◽  
Distorted Octahedral ◽  
Weak Hydrogen Bonds ◽  
Polymeric Chains ◽  
Metal Organic ◽  
Bipyridine Ligand

The central copper(II) atom of the title salt, {[Cu(CF3SO3)(CH3CN)2(C12H12N2O2)](CF3SO3)} n or [[Cu(CH3CN)2(diOMe-bpy)(CF3SO3)](CF3SO3)] n where diOMe-bpy is 4,4′-dimethoxy-2,2′-bipyridine, C12H12N2O2, is sixfold coordinated by the N atoms of the chelating bipyridine ligand, the N atoms of two acetonitrile molecules, and two trifluoromethanesulfonate O atoms in a tetragonally distorted octahedral shape. The formation of polymeric chains [Cu(CH3CN)2(diOMe-bpy)(CF3SO3)]+ n leaves voids for the non-coordinating trifluoromethanesulfonate anions that interact with the complex through weak hydrogen bonds. The presence of weakly coordinating ligands like acetonitrile and trifluoromethanesulfonate makes the title compound a convenient starting material for the synthesis of novel metal–organic frameworks.

Sign in / Sign up

Export Citation Format

Share Document