Related Experiment Video
Updated: May 26, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
1,1'-Binaphthyl-2,2'-diyl benzyl-phos-phoramidate
Ravikumar R Gowda1, Venkatachalam Ramkumar, Debashis Chakraborty
1Department of Chemistry, IIT Madras, Chennai, TamilNadu, India.
This study details the crystal structure of a novel phosphorus-containing compound. Analysis reveals a distorted tetrahedral geometry around the phosphorus atom and specific hydrogen bonding interactions in the crystal lattice.
Area of Science:
- Crystallography
- Inorganic Chemistry
- Supramolecular Chemistry
Background:
- Understanding the three-dimensional arrangement of atoms in novel chemical compounds is crucial for predicting their properties and reactivity.
- Phosphorus-nitrogen-oxygen containing compounds are of interest due to their diverse applications.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(27)H(20)NO(3)P.
- To analyze the coordination geometry around the phosphorus atom and intermolecular interactions within the crystal.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of bond angles, dihedral angles, and hydrogen bonding patterns was performed.
Main Results:
- The phosphorus atom displays a distorted tetrahedral geometry with a specific O-P-O angle of 102.82(6)°.
- A dihedral angle of 59.00(2)° was observed between the naphthyl ring systems.
- Inversion dimers linked by N-H⋯O hydrogen bonds were identified, forming R(2)(2)(8) loops.
Conclusions:
- The study provides precise structural data for the title compound.
- The observed hydrogen bonding network influences the supramolecular arrangement in the solid state.
Related Concept Videos
Nomenclature of Aromatic Compounds with Multiple Substituents
For disubstituted benzene derivatives, with two groups attached to the benzene ring, three constitutional isomers are possible. For example, consider dimethyl benzene, often called xylene, where the second methyl group can be substituted at the second, third, or fourth carbon. The relative position of the substituents is represented by prefixes ortho, meta, or...
ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH3
Hydrolysis of Chlorobenzene to Phenol: Dow Process
Phosphodiester Linkages
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
