Does stoichiometry matter? Cocrystals of aliphatic dicarboxylic acids with isonicotinamide: odd–even alternation in melting points

This study outlines the synthesis of four cocrystals of aliphatic dicarboxylic acids {pimelic acid to sebacic acid (HOOC–(CH2)n–COOH, n = 5, 6, 7 and 8)} and isonicotinamide in a ratio of 1 : 2.

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Multi-Component Crystals of 2,2′-Bipyridine with Aliphatic Dicarboxylic Acids: Melting Point-Structure Relations

Crystals ◽

10.3390/cryst11101151 ◽

2021 ◽

Vol 11 (10) ◽

pp. 1151

Author(s):

Vhukhudo Nethanani ◽

Eustina Batisai

Keyword(s):

Melting Point ◽

Dicarboxylic Acids ◽

Conformation Analysis ◽

Solvent Evaporation Method ◽

X Ray Diffraction ◽

Melting Points ◽

Scanning Calorimetry ◽

X Ray ◽

Aliphatic Dicarboxylic Acids ◽

The Relationship

The aim of the study was to investigate the relationship between the melting point and the supramolecular structure of three multi-component crystals of aliphatic dicarboxylic acids with 2,2′-bipyridine and to investigate the conformations of 2,2′-bipyridine in published multi-component crystals. The crystals were prepared using the solvent evaporation method and were characterized using single-crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), and differential scanning calorimetry (DSC). The crystal structures were further analyzed using CrystalExplorer, and the results were correlated with the melting points. The results of the conformation analysis of the reported multi-component crystals of 2,2′-bipyridine are also presented.

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Effect of Calcium Salts of Aliphatic Dicarboxylic Acids on the Formation of β Crystalline Form in Isotactic Poly(Propylene)

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.391-392.875 ◽

2011 ◽

Vol 391-392 ◽

pp. 875-882 ◽

Cited By ~ 1

Author(s):

Qiang Dou

Keyword(s):

Succinic Acid ◽

Adipic Acid ◽

Glutaric Acid ◽

Dicarboxylic Acids ◽

Crystalline Form ◽

Pimelic Acid ◽

Suberic Acid ◽

Calcium Salts ◽

Aliphatic Dicarboxylic Acids ◽

Poly Propylene

The effects of calcium salts of aliphatic dicarboxylic acids on the polymorphism of iPP have been investigated by means of WAXD, DSC and PLM. It is found that β crystalline form content and nucleation ability of the nucleated iPP are dependent on the carboatomic numbers of the acids. Calcium salts of malonic acid, glutaric acid, pimelic acid and suberic acid are good β nucleators. Calcium salts of succinic acid and adipic acid are α nucleators. Calcium salts of acids with carboatomic numbers of 5 to 8 are good nucleators. The β spherulite size is the smallest in iPP doped with calcium pimelate.

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Growth of a Wild Strain and of a Pimelic Acid-utilizing Mutant of Pseudomonas azelaica on Aliphatic Dicarboxylic Acids

Journal of General Microbiology ◽

10.1099/00221287-84-1-79 ◽

1974 ◽

Vol 84 (1) ◽

pp. 79-84

Author(s):

L. JANOTA-BASSALIK ◽

B. BOHDANOWICZ-STRUCINSKA

Keyword(s):

Wild Strain ◽

Dicarboxylic Acids ◽

Pimelic Acid ◽

Aliphatic Dicarboxylic Acids

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CO-ORDINATION COMPLEXES OF TITANIUM (IV) HALIDES: II. PREPARATION AND INFRARED SPECTRA OF THE COMPLEXES OF TITANIUM TETRACHLORIDE WITH DIESTERS OF α,ω-DICARBOXYLIC ACIDS AND COMPARISON WITH ANALOGOUS COMPLEXES OF ZIRCONIUM TETRACHLORIDE AND TIN TETRACHLORIDE

Canadian Journal of Chemistry ◽

10.1139/v61-312 ◽

1961 ◽

Vol 39 (11) ◽

pp. 2343-2352 ◽

Cited By ~ 12

Author(s):

Ernest Rivet ◽

Real Aubin ◽

Roland Rivest

Keyword(s):

Molecular Weight ◽

Infrared Spectra ◽

Titanium Tetrachloride ◽

Complex Molecule ◽

Dicarboxylic Acids ◽

The Other ◽

Zirconium Tetrachloride ◽

Melting Points ◽

Zirconium Complexes ◽

Tin Tetrachloride

Co-ordination complexes between diesters of α,ω-dicarboxylic acids and titanium tetrachloride, tin tetrachloride, and zirconium tetrachloride have been prepared. The analytical results, the infrared spectra, the melting points, and the molecular-weight determinations indicate that for the titanium and zirconium complexes, two types of complexes are obtained, one having a general formula MX4•1 diester in which chelate rings from five to nine atoms are formed and the other one, 2MX4•1 diester in which there are two 4-membered rings per complex molecule. With tin tetrachloride only one type of complex is formed, which has two tin tetrachlorides and two diesters per complex molecule.

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