A binary hydrogen bonding motif based on homochiral recognition: crystal structures and hydrogen bonding networks of meso-(R,S)-bis(trifluorolactate)s

2005 ◽  
pp. 3658 ◽  
Author(s):  
Satoshi Takahashi ◽  
Toshimasa Katagiri ◽  
Kenji Uneyama
Keyword(s):  
Hydrogen Bonding ◽  
Crystal Structures ◽  
Hydrogen Bonding Networks

The crystalline forms of nine hydrochloride salts of substituted tryptamines

2021 ◽  
Vol 77 (10) ◽  
pp. 615-620
Author(s):  
Duyen N. K. Pham ◽  
Zachary S. Belanger ◽  
Andrew R. Chadeayne ◽  
James A. Golen ◽  
David R. Manke
Keyword(s):  
Hydrogen Bonding ◽  
Crystal Structures ◽  
Two Dimensional ◽  
One Dimensional ◽  
Hydrogen Bonding Networks ◽  
Hydrogen Bonding Network ◽  
Crystalline Forms

The crystal structures of the hydrochloride salts of nine substituted tryptamines, namely, 1-methyltryptammonium chloride, C11H15N2 +·Cl−, (1), 2-methyl-1-phenyltryptammonium chloride, C17H19N2 +·Cl−, (2), 5-methoxytryptammonium chloride, C11H15N2O+·Cl−, (3), 5-bromotryptammonium chloride, C10H12BrN2 +·Cl−, (4), 5-chlorotryptammonium chloride, C10H12ClN2 +·Cl−, (5), 5-fluorotryptammonium chloride, C10H12FN2 +·Cl−, (6), 5-methyltryptammonium chloride, C11H15N2 +·Cl−, (7), 6-fluorotryptammonium chloride, C10H12FN2 +·Cl−, (8), and 7-methyltryptammonium chloride, C11H15N2 +·Cl−, (9), are reported. The seven tryptamines with N—H indoles, (3)–(9), show very similar structures, with N—H...Cl hydrogen-bonding networks forming two-dimensional sheets in the crystals. These sheets are combinations of R 4 2(8) and R 4 2(18) rings, and C 2 1(4) and C 2 1(9) chains. Substitution at the indole N atom reduces the dimensionality of the hydrogen-bonding network, with compounds (1) and (2) demonstrating one-dimensional chains that are a combination of different rings and parallel chains.

scholarly journals Hydrogen-bonding in mono-, di- and tetramethylammonium dihydrogenphosphites

2021 ◽  
Vol 236 (1-2) ◽  
pp. 33-41
Author(s):  
Matthias Kogler ◽  
Berthold Stöger
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
High Temperature ◽  
Low Temperature ◽  
Crystal Structures ◽  
Point Symmetry ◽  
Temperature Dependent ◽  
Threefold Axis ◽  
Quotient Graphs ◽  
Hydrogen Bonding Networks

Abstract The crystal structures of methylammonium and dimethylammonium dihydrogenphosphite (MA⋅H2PO3, I2/a and DMA⋅H2PO3, P 2 1 / c $P{2}_{1}/c$ ) are built of infinite chains of hydrogen bonded H 2 P O 3 − ${\mathrm{H}}_{\mathrm{2}}\mathrm{P}{\mathrm{O}}_{\mathrm{3}}^{-}$ anions. The chains are connected by the ammonium cations via hydrogen bonding to di- (DMA⋅H2PO3) and triperiodic (MA⋅H2PO3) networks. Tetramethylammonium dihydrogenphosphite monohydrate (TMA⋅H2PO3⋅H2O) features temperature dependent dimorphism. The crystal structure of the high-temperature (HT, cubic P213) and low-temperature (LT, orthorhombic P212121) phases were determined at 150 and 100 K, respectively. The hydrogen bonding network in the HT phase is disordered, with H 2 P O 3 − ${\mathrm{H}}_{\mathrm{2}}\mathrm{P}{\mathrm{O}}_{\mathrm{3}}^{-}$ and H2O being located on a threefold axis and is ordered in the LT phase. On cooling, the point symmetry is reduced by an index of 3. The lost symmetry is retained as twin operations, leading to threefold twinning by pseudo-merohedry. The hydrogen-bonding networks of the HT and LT phases can be represented by undirected and directed quotient graphs, respectively.

Polysulfonylamine, CXLII [1]. Ein supramolekulares Monomer-Dimer-Paar: Starke und schwache Wasserstoffbrücken in den Kristallstrukturen von Pyridinium-dimesylamid und 4,4´-Bipyridindiium-bis(dimesylamid) / Polysulfonylamines, CXLII [1]. A Supramolecular Monomer-Dimer Pair: Strong and Weak Hydrogen Bonding in the Crystal Structures of Pyridinium Dimesylamide and 4,4´-Bipyridinediium Bis(dimesylamide)

2001 ◽  
Vol 56 (10) ◽  
pp. 1041-1051 ◽  
Author(s):  
Oliver Moers ◽  
Ilona Lange ◽  
Karna Wijaya ◽  
Armand Blaschette ◽  
Peter G. Jones
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Low Temperature ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Strong Hydrogen Bond ◽  
Orthorhombic Space Group ◽  
X Ray ◽  
Normalized Parameters ◽  
Hydrogen Bonding Networks

In order to study packing arrangements and hydrogen bonding networks, low-temperature X-ray structures were determined for pyH+(MeSO2)2N- (M, orthorhombic, space group P212121, Z′ = 1) and 4,4′-bipyH22+ ·(MeSO2)2N- (D, monoclinic, C2/c, Z′ = 0.5). The structures consist of ionic formula entities assembled by N+-H···N- hydrogen bonds; the dication in D displays crystallographic C2 symmetry and has its two pyridyl moieties twisted by 43.9°. According to the packing architectures, D represents a supramolecular dimer of the monomeric congener M. In particular, the (MeSO2)2N- ions of the M structure are associated via short C(sp3) - H···O contacts to form a diamondoid network, whereas in D a topologically congruent framework is constructed from weakly hydrogen-bonded [(MeSO2)N-]2 nodes. Hexagonal channels in the anion substructures each include two adjacent stacks of monomeric pyH+ or “dimeric” 4,4-bipyH22+ cations that are linked to the channel walls by the strong hydrogen bond(s) and a set of short Car-H···O contacts. All C - H···O taken into consideration have normalized parameters d(H···O) ≤ 270 pm and θ(C - H···O) ≥ 115°.

scholarly journals Synthesis and crystal structures of three Schiff bases derived from 3-formylacetylacetone and o-, m- and p-aminobenzoic acid

2022 ◽  
Vol 78 (1) ◽  
Author(s):  
Jan Henrik Halz ◽  
Andreas Hentsch ◽  
Christoph Wagner ◽  
Kurt Merzweiler
Keyword(s):  
Hydrogen Bonding ◽  
Nitrogen Atom ◽  
Crystal Structures ◽  
Schiff Bases ◽  
Molecular Fragment ◽  
Supramolecular Structures ◽  
Hydrogen Bridge ◽  
Aminobenzoic Acid ◽  
Aminobenzoic Acids ◽  
Hydrogen Bonding Networks

Treatment of 3-formylacetylacetone with the isomeric o-, m- and p-aminobenzoic acids led to the formation of the corresponding Schiff bases, namely, 3-[(2-carboxyphenylamino)methylidene]pentane-2,4-dione, 1, 3-[(3-carboxyphenylamino)methylidene]pentane-2,4-dione, 2, and 3-[(4-carboxyphenylamino)methylidene]pentane-2,4-dione, 3, all C13H13NO4, that contain a planar amino-methylene-pentane-2,4-dione core with a strong intramolecular N—H...O hydrogen bridge. The carboxyphenyl groups attached to the nitrogen atom are almost coplanar to the central molecular fragment. Depending on the position of the carboxyl unit, different supramolecular structures with hydrogen-bonding networks are formed in the three title structures.

scholarly journals Supramolecular hydrogen-bonding patterns of co-crystals containing the active pharmaceutical ingredient (API) phloroglucinol andN-heterocycles

2016 ◽  
Vol 72 (3) ◽  
pp. 326-334 ◽  
Author(s):  
Aleksandar Cvetkovski ◽  
Valerio Bertolasi ◽  
Valeria Ferretti
Keyword(s):  
Hydrogen Bonding ◽  
Detailed Analysis ◽  
Crystal Structures ◽  
Intermolecular Interactions ◽  
Structural Characteristics ◽  
Active Pharmaceutical Ingredient ◽  
Structural Motifs ◽  
Size And Shape ◽  
Hydrogen Bonding Networks ◽  
Bonding Patterns

The active pharmaceutical ingredient phloroglucinol (PHL) has been taken as an illustrative molecule to explore the intermolecular interactions which can be established with other molecular entities to build PHL pharmaceutical co-crystals. The crystal structures of five newly synthesized co-crystals are reported, where PHL is crystallized withN-heterocycles, namely 2-hydroxy-6-methylpyridine (1), 2,4-dimethyl-6-hydroxypyrimidine (2), 4-phenylpyridine (3), 2-hydroxypyridine (4) and 2,3,5,6-tetramethylpyrazine (5). The structural characteristics of these co-crystals, as far as the hydrogen-bonding networks and the crystalline architectures are concerned, are strongly dependent on the chemical features of the coformer molecules, as well as on their size and shape. A detailed analysis of the intermolecular interactions established in all the PHL co-crystals of known structures has allowed the recognition of some regularities in the packing modes that can be useful in the design of new supramolecular adducts forming predictable structural motifs.

Inorganic anion-assisted supramolecular assemblies of bent dipyridines: effects of anionic geometries on hydrogen-bonding networks

2015 ◽  
Vol 2 (3) ◽  
pp. 263-272 ◽  
Author(s):  
Xue-Hua Ding ◽  
Shi Wang ◽  
Yong-Hua Li ◽  
Wei Huang
Keyword(s):  
Hydrogen Bonding ◽  
Crystal Structures ◽  
Supramolecular Assemblies ◽  
Inorganic Anion ◽  
Hydrogen Bonding Networks

Effects of inorganic anionic geometries on supramolecular assemblies and their crystal structures.

scholarly journals The crystal structures and mechanical properties of the uranyl carbonate minerals roubaultite, fontanite, sharpite, widenmannite, grimselite and čejkaite

2020 ◽  
Vol 7 (21) ◽  
pp. 4197-4221 ◽  
Author(s):  
Francisco Colmenero ◽  
Jakub Plášil ◽  
Jiří Sejkora
Keyword(s):  
Mechanical Properties ◽  
Hydrogen Bonding ◽  
Diffraction Pattern ◽  
Crystal Structures ◽  
First Principles ◽  
X Ray Diffraction ◽  
Carbonate Minerals ◽  
X Ray ◽  
Uranyl Carbonate

The structure, hydrogen bonding, X-ray diffraction pattern and mechanical properties of six important uranyl carbonate minerals, roubaultite, fontanite, sharpite, widenmannite, grimselite and čejkaite, are determined using first principles methods.

Cobalt(II) aldoxime complexes stabilised by halide hydrogen bonding: crystal structures of [Co{HONC(H)(Me)}4X2] (X = Cl or Br) and [Co{HONC(H)(Pr)}4Cl2]

2001 ◽  
pp. 197-201 ◽  
Author(s):  
Jean-Cyrille Hierso ◽  
Elisabeth Bouwman ◽  
Dianne D. Ellis ◽  
Mónica Pérez Cabero ◽  
Jan Reedijk ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Crystal Structures
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