scholarly journals Combined Electrostatics and Hydrogen Bonding Determine Intermolecular Interactions Between Polyphosphoinositides

2008 ◽  
Vol 130 (28) ◽  
pp. 9025-9030 ◽  
Author(s):  
Ilya Levental ◽  
Andrejs Ce̅bers ◽  
Paul A. Janmey
Keyword(s):  
Hydrogen Bonding ◽  
Intermolecular Interactions

Tris(biimidazolato)chromium(III) as a building block for hydrogen-bonded supramolecular assemblies

2006 ◽  
Vol 84 (7) ◽  
pp. 949-959 ◽  
Author(s):  
Letitia M Gruia ◽  
Fernande D Rochon ◽  
André L Beauchamp
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Porous Material ◽  
Intermolecular Interactions ◽  
Long Range ◽  
Building Block ◽  
Benzene Molecule ◽  
Methanol Solution ◽  
Solvent Molecules ◽  
Free Material

The trischelate [Cr(H2biim)3](NO3)3 complex of 2,2′-biimidazole (H2biim) was obtained by reacting CrCl3·3THF with [Ag(H2biim)](NO3) in methanol. In the solvent-free material, each ligand forms two N-H···O bonds to a nitrate ion and generates locally neutral [Cr(H2biim)3](NO3)3 units. A methanol solvate was also obtained in which intermolecular interactions involve optimal use of the hydrogen-bonding ability of the [Cr(H2biim)3]3+ cations, NO3– anions, and methanol molecules. In both cases, there is no long-range regular organization of the complex units. Deprotonation of [Cr(H2biim)3](NO3)3 with NaOCH3 yielded neutral Cr(Hbiim)3. Its powder pattern is similar to that of Ru(Hbiim)3, suggesting that it also consists of mutually perpendicular interlocked honeycomb sheets. Recrystallization by slow diffusion of diisopropyl ether into a methanol solution yielded a porous material of composition Cr(Hbiim)3·2.6C6H14O in which superposed honeycomb sheets create infinite channels (~13 Å diameter) filled with disordered solvent molecules. A totally different structure is adopted by the solvate Cr(Hbiim)3·C6H6·2H2O, where the benzene molecule is encapsulated in a cavity created by five complex molecules.Key words: chromium, biimidazole, supramolecular, crystal structure, hydrogen bonding.

scholarly journals Methyl 3-(4-hydroxyphenyl)propionate

IUCrData ◽  
2018 ◽  
Vol 3 (11) ◽  
Author(s):  
Moaz M. Abdou ◽  
Magdalini Matziari ◽  
Paul M. O'Neill ◽  
Eric Amigues ◽  
Ruixue Zhou ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Intermolecular Interactions ◽  
Title Compound ◽  
Phenyl Ring ◽  
Space Group ◽  
Compound C ◽  
Phenolic Group

The title compound, C10H12O3, crystallizes in the orthorhombicP212121space group. The structure contains a phenolic group with the OH being coplanar with the phenyl ring. The structure exhibits significant hydrogen bonding between the O—H group of one molecule and the CO group of an adjacent one. These O—H...O=C interactions form chains of molecules parallel to thebaxis. No π–π or C—H...π intermolecular interactions are observed.

Salt formation, hydrogen-bonding patterns and supramolecular architectures of acridine with salicylic and hippuric acid molecules

2021 ◽  
Vol 77 (12) ◽  
Author(s):  
Suresh Suganya ◽  
Kandasamy Saravanan ◽  
Ramakrishnan Jaganathan ◽  
Poomani Kumaradhas
Keyword(s):  
Hydrogen Bonding ◽  
Intermolecular Interactions ◽  
Hippuric Acid ◽  
Crystal Packing ◽  
Noncovalent Interactions ◽  
Salt Formation ◽  
Aminosalicylic Acid ◽  
Dispersion Interactions ◽  
Supramolecular Architectures ◽  
Quantitative Contributions

The intermolecular interactions and salt formation of acridine with 4-aminosalicylic acid, 5-chlorosalicylic acid and hippuric acid were investigated. The salts obtained were acridin-1-ium 4-aminosalicylate (4-amino-2-hydroxybenzoate), C13H10N+·C7H6NO3 − (I), acridin-1-ium 5-chlorosalicylate (5-chloro-2-hydroxybenzoate), C13H10N+·C7H4ClO3 − (II), and acridin-1-ium hippurate (2-benzamidoacetate) monohydrate, C13H10N+·C9H8NO3 −·H2O (III). Acridine is involved in strong intermolecular interactions with the hydroxy group of the three acids, enabling it to form supramolecular assemblies. Hirshfeld surfaces, fingerprint plots and enrichment ratios were generated and investigated, and the intermolecular interactions were analyzed, revealing their quantitative contributions in the crystal packing of salts I, II and III. A quantum theory of atoms in molecules (QTAIM) analysis shows the charge–density distribution of the intermolecular interactions. The isosurfaces of the noncovalent interactions were studied, which allows visualization of where the hydrogen-bonding and dispersion interactions contribute within the crystal.

A topological analysis of the interion interactions of tetraphenylphosphonium squarate

2006 ◽  
Vol 84 (5) ◽  
pp. 804-811 ◽  
Author(s):  
David Wolstenholme ◽  
Manuel AS Aquino ◽  
T Stanley Cameron ◽  
Joseph D Ferrara ◽  
Katherine N Robertson
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Electron Density ◽  
Intermolecular Interactions ◽  
Critical Points ◽  
Topological Analysis ◽  
Van Der Waals ◽  
Van Der Waals Interactions ◽  
Multipole Refinement ◽  
Diverse Interactions

The tetraphenylphosphonium squarate salt crystallizes with a number of diverse interactions, which all have the potential to be classified as hydrogen bonds. The squarate anions are found as dimers linked by O-H···O interactions. The multipole refinement of the tetraphenylphosphonium squarate was performed using the Hansen–Coppens model followed by topological analysis of its intermolecular interactions. A total of 28 interactions were found among the symmetry related molecules, which include a number of C-H···Cπ, C-H···O, and C-H···H-C interactions, along with the O-H···O interaction. With the criteria for hydrogen bonding proposed by Popelier and Koch, it is possible to determine which of these interactions are hydrogen bonds and which are van der Waals interactions. Both linear and exponentially dependent correlations can be seen for the properties of the bond critical points involving the intermolecular interactions that fulfill these criteria. All this leads to a better understanding of the role that hydrogen bonds play in the formation of small organic compounds.Key words: electron density, multiple refinement, hydrogen bonds.

Supramolecular structures of N 4-substituted 2,4-diamino-6-benzyloxy-5-nitrosopyrimidines

2003 ◽  
Vol 59 (2) ◽  
pp. 263-276 ◽  
Author(s):  
Manuel Melguizo ◽  
Antonio Quesada ◽  
John N. Low ◽  
Christopher Glidewell
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Intermolecular Interactions ◽  
Electronic Structures ◽  
Supramolecular Structure ◽  
Supramolecular Structures ◽  
Stacking Interactions ◽  
Molecular Electronic ◽  
Π Stacking

The molecular and supramolecular structures of eight N 4-substituted 2,4-diamino-6-benzyloxy-5-nitrosopyrimidines are discussed, along with one analogue containing no nitroso substituent. The nitroso derivatives all exhibit polarized molecular-electronic structures leading to extensive charge-assisted hydrogen bonding between the molecules. The intermolecular interactions include hard hydrogen bonds of N—H...O and N—H...N types, together with O—H...O and O—H...N types in the monohydrate of 2-amino-6-benzyloxy-4-piperidino-5-nitrosopyrimidine, soft hydrogen bonds of C—H...O, C—H...π(arene) and N—H...π(arene) types and aromatic π...π stacking interactions. The predominant supramolecular structure types take the form of chains and sheets, but no two of the structures determined here exhibit the same combination of hydrogen-bond types.

Dissecting intermolecular interactions in the condensed phase of ibuprofen and related compounds: the specific role and quantification of hydrogen bonding and dispersion forces

2020 ◽  
Vol 22 (9) ◽  
pp. 4896-4904 ◽  
Author(s):  
V. N. Emel’yanenko ◽  
P. Stange ◽  
J. Feder-Kubis ◽  
S. P. Verevkin ◽  
R. Ludwig
Keyword(s):  
Hydrogen Bonding ◽  
Infrared Spectroscopy ◽  
Quantum Chemistry ◽  
Intermolecular Interactions ◽  
Condensed Phase ◽  
Specific Role ◽  
Dispersion Interaction ◽  
Dispersion Forces ◽  
Related Compounds

Hydrogen bonding and dispersion interaction in liquid ibuprofen is analyzed by thermodynamic methods, infrared spectroscopy and quantum chemistry.

Directional Weak Intermolecular Interactions: σ-Hole Bonding

2010 ◽  
Vol 63 (12) ◽  
pp. 1598 ◽  
Author(s):  
Jane S. Murray ◽  
Kevin E. Riley ◽  
Peter Politzer ◽  
Timothy Clark
Keyword(s):  
Hydrogen Bonding ◽  
Intermolecular Interactions ◽  
Electrostatic Potential ◽  
Crystal Engineering ◽  
Molecular Electrostatic Potential ◽  
Weak Interactions ◽  
Halogen Bonding ◽  
Donor Atom ◽  
Weak Intermolecular Interactions ◽  
Special Case

The prototypical directional weak interactions, hydrogen bonding and σ-hole bonding (including the special case of halogen bonding) are reviewed in a united picture that depends on the anisotropic nature of the molecular electrostatic potential around the donor atom. Qualitative descriptions of the effects that lead to these anisotropic distributions are given and examples of the importance of σ-hole bonding in crystal engineering and biological systems are discussed.

Direct observation of intermolecular interactions mediated by hydrogen bonding

2014 ◽  
Vol 141 (3) ◽  
pp. 034502 ◽  
Author(s):  
Luigi De Marco ◽  
Martin Thämer ◽  
Mike Reppert ◽  
Andrei Tokmakoff
Keyword(s):  
Hydrogen Bonding ◽  
Intermolecular Interactions ◽  
Direct Observation

scholarly journals STRUCTURE AND THERMAL STABILITY OF THE BENZO-15-CROWN-5 WITH LANTHANUM (III) BROMIDE COMPLEX

2010 ◽  
Vol 4 (3) ◽  
pp. 139-144 ◽  
Author(s):  
Muhammad Idiris Saleh ◽  
Eny Kusrini ◽  
Abdulssalam Salhin ◽  
Rohana Adnan ◽  
Ismail Ab. Rahman ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Hydrogen Bonding ◽  
Intermolecular Interactions ◽  
Sandwich Complex ◽  
X Ray ◽  
Bond Lengths ◽  
Type C ◽  
Lanthanum Atom ◽  
Thermal Stability Of ◽  
Bromide Complex

The reaction of benzo-15-crown-5 (C14H20O5) ligand with La(NO3)3.7H2O in the presence of HBr has resulted in the production of an exotic sandwich complex, [LaC28H36Br4O10][3Br]. The crystal system is triclinic with space group P1, a = 12.5834(14) Å, b = 13.5816(16) Å, c = 13.8403(16) Å, a = 70.751(2)°, b = 66.773(2)° and g = 67.631(2)°. The cation comprises of the lanthanum atom coordinated to two crowns via three oxygen atoms from each crown in a η3-sandwich fashion. The two phenyl groups of the crown are brominated. The La-OLigand bond lengths are between 2.857(7) and 2.949(7) Å. The trianion [3Br]3- is linear with Br-Br bond lengths of 2.518(2) and 2.560(2) Å respectively. The molecule is stabilized by intermolecular interactions of the type C-H...Br to form dimers and are arranged parallel to bc face.  Keywords: lanthanum, benzo-15-crown-5, hydrogen bonding, bromination, x-ray structure

Sign in / Sign up

Export Citation Format

Share Document