Related Experiment Video
Updated: Jun 1, 2026
Preparation of Contiguous Bisaziridines for Regioselective Ring-Opening Reactions
Published on: July 28, 2022
{2-[2-(Carb-oxy-meth-oxy)-phen-oxy]acetato}[2,2'-(o-phenyl-enedi-oxy)diacetic acid]sodium 4,4'-bipyridine hemisolvate
Liang Xu1, Li-Yan Gu, Yan-Yun Yang
1College of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, People's Republic of China.
Abstract:
In the title compound, [Na(C(10)H(9)O(6))(C(10)H(10)O(6))]·0.5C(10)H(8)N(2)·H(2)O, the Na atom is eight-coordinated in an distorted dicapped-octa-hedral geometry by eight O atoms from a 2-(2-carb-oxy-meth-oxy-phen-oxy)acetate (o-BDOAH) anion and a 2,2'-(o-phenyl-enedi-oxy)diacetic acid (o-BDOAH(2)) mol-ecule. The uncoordinated 4,4'-bipyridine mol-ecule is arranged around an inversion center and exhibits rotational disorder. A three-dimensional supra-molecular network is built up in the crystal through O-H⋯O and O-H⋯N hydrogen bonds between the uncoordinated water mol-ecule, the uncoordinated 4,4'-bipyridine mol-ecule and the sodium complex mol-ecule.
More Related Videos
Related Concept Videos
02:42Acidity of 1-Alkynes
The acidic strength of hydrocarbons follows the order: Alkynes > Alkenes > Alkanes. The strength of an acid is commonly expressed in units of pKa — the lower the pKa, the stronger the acid. Among the hydrocarbons, terminal alkynes have lower pKa values and are, therefore, more acidic. For example, the pKa values for ethane, ethene, and acetylene are 51, 44, and 25, respectively, as shown here.
01:28Structures of Carboxylic Acid Derivatives
Carboxylic acid derivatives contain an acyl group attached to a heteroatom such as chlorine, oxygen, or nitrogen. The carbonyl carbon and oxygen are both sp2-hybridized with an unhybridized p orbital.
The three sp2 orbitals of the carbonyl carbon form three σ bonds, one each with the carbonyl oxygen, the α carbon, and the heteroatom, whereas the other two sp2 orbitals of the carbonyl oxygen are occupied by the lone pairs. Further, the unhybridized p...
01:16Nomenclature of Carboxylic Acid Derivatives: Acid Halides, Esters, and Acid Anhydrides
The IUPAC and common names of acid halides are derived from the corresponding carboxylic acids, by changing “ic acid” to “yl halide.” For example, as shown below, the IUPAC name ethanoyl chloride is derived from ethanoic acid, and the common name, acetyl chloride, is obtained from acetic acid.
01:11Nomenclature of Carboxylic Acid Derivatives: Amides and Nitriles
The IUPAC and common names of amides are derived from the parent carboxylic acid, by replacing the suffix “oic acid” and “ic acid,” respectively, with “amide.” In the following example, the IUPAC name ethanamide is derived from ethanoic acid, and the common name, acetamide, is obtained from acetic acid.
01:22EDTA: Chemistry and Properties