Synthesis, crystal structures and IR spectra of isotypic pseudopolymorphs complexes of Zn(II) by indole-2-carboxylic acid and 2,9-dimethyl-1,10-phenanthroline with different solvates (DMA, DMF or DMSO)

2005 ◽  
Vol 741 (1-3) ◽  
pp. 45-52 ◽  
Author(s):  
Vincente Viossat ◽  
Pascale Lemoine ◽  
Elie Dayan ◽  
Nguyen-Huy Dung ◽  
Bernard Viossat
Keyword(s):  
Carboxylic Acid ◽  
Ir Spectra ◽  
Crystal Structures

Water-soluble copper(II) complexes with 4,5-dichloro-isothiazole-3-carboxylic acid and heterocyclic N-donor ligands: Synthesis, crystal structures, cytotoxicity, and DNA binding study

2020 ◽  
Vol 510 ◽  
pp. 119778 ◽  
Author(s):  
Julia A. Eremina ◽  
Elizaveta V. Lider ◽  
Taisiya S. Sukhikh ◽  
Lyubov S. Klyushova ◽  
Maria L. Perepechaeva ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Dna Binding ◽  
Crystal Structures ◽  
Water Soluble ◽  
Binding Study ◽  
Donor Ligands

ChemInform Abstract: FT IR Spectra and Molecular Orientation in Thin Langmuir-Blodgett Films of Dodecyloxyphenylpyrazine Carboxylic Acid and Its Barium Salt.

ChemInform ◽  
2010 ◽  
Vol 22 (7) ◽  
pp. no-no
Author(s):  
T. KAMATA ◽  
J. UMEMURA ◽  
T. TAKENAKA ◽  
K. TAKEHARA ◽  
K. ISOMURA ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Ir Spectra ◽  
Molecular Orientation ◽  
Barium Salt ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
Ft Ir

Hydrogen Bonds in "Carboxyoximes": the Case of Bomane Derivatives

2000 ◽  
Vol 55 (8) ◽  
pp. 677-684 ◽  
Author(s):  
Maciej Kubicki ◽  
Teresa Borowiak ◽  
Wiesław Z. Antkowiak
Keyword(s):  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Carboxylic Acids ◽  
Supramolecular Structures ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carboxylic Groups ◽  
Acid Function

Abstract The tendency of forming mixed carboxyl-to-oxime hydrogen bonds was tested on the series of bornane derivatives: one with the acid function only (bornane-2-endo-carboxylic acid), one with the oxime function (2,2′-diethylthiobomane-3-oxime), and one with both oxime and carboxylic functions (bornane-2-oxime-3-endo-carboxylic acid). The crystal structures of these compounds were determined by means of X-ray diffraction. In bornane-2-endo-carboxylic acid and 2,2′-diethylthiobornane-3-oxime 'homogenic' hydrogen bonds were found, and these hydrogen bonds close eight-and six-membered rings, respectively. By contrast, in bornane-2-oxime-3-endo-carboxylic acid 'heterogenic' hydrogen bonds between carboxylic and oxime bonds were found. This carboxylic-oxime, or 'carboxyoxime' system is almost always present in compounds which have both oxime and carboxylic groups; therefore it can be regarded as an element of supramolecular structures (synthon). The presence of such synthons can break the tendency of carboxylic acids and oximes towards crystallizing in centrosymmetric structures.

Preparations, IR spectra and crystal structures of cyano-bridged bimetallic complexes of zinc(II) and cadmium(II) with tetracyanopalladate(II)

2007 ◽  
Vol 60 (19) ◽  
pp. 2035-2044 ◽  
Author(s):  
Ahmet Karadağ ◽  
Ahmet Bulut ◽  
Ayşegül Şenocak ◽  
İbrahim Uçar ◽  
Orhan Büyükgüngör
Keyword(s):  
Ir Spectra ◽  
Crystal Structures ◽  
Bimetallic Complexes

scholarly journals Crystal structures of two 6-(2-hydroxybenzoyl)-5H-thiazolo[3,2-a]pyrimidin-5-ones

2015 ◽  
Vol 71 (7) ◽  
pp. 766-771
Author(s):  
Ligia R. Gomes ◽  
John Nicolson Low ◽  
Fernando Cagide ◽  
Fernanda Borges
Keyword(s):  
Hydrogen Bond ◽  
Carboxylic Acid ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Dihedral Angles ◽  
Stacking Interactions ◽  
Mechanism Of Formation ◽  
Π Stacking ◽  
Heterocyclic Moiety

The title compounds, 6-(2-hydroxybenzyl)-5H-thiazolo[3,2-a]pyrimidin-5-one, C13H8N2O3S, (1), and 6-(2-hydroxybenzyl)-3-methyl-5H-thiazolo[3,2-a]pyrimidin-5-one, C14H10N2O3S, (2), were synthesized when a chromone-3-carboxylic acid, activated with (benzotriazol-1-yloxy)tripyrrolidinylphosphonium hexafluoridophosphate (PyBOP), was reacted with a primary heteromamine. Instead of the expected amidation, the unusual title thiazolopyrimidine-5-one derivatives were obtained serendipitously and a mechanism of formation is proposed. Both compounds present an intramolecular O—H...O hydrogen bond, which generates anS(6) ring. The dihedral angles between the heterocyclic moiety and the 2-hydroxybenzoyl ring are 55.22 (5) and 46.83 (6)° for (1) and (2), respectively. In the crystals, the molecules are linked by weak C—H...O hydrogen bonds and π–π stacking interactions.

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