Related Experiment Video
Updated: Apr 5, 2026
08:46
Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
Published on: November 22, 2016
8.3K
Positively Charged Phosphorus as a Hydrogen Bond Acceptor
Anne S Hansen1, Lin Du1, Henrik G Kjaergaard1
1Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.
The Journal of Physical Chemistry Letters
|August 18, 2015
Summary
Phosphorus (P) can form hydrogen bonds, acting as an acceptor atom similar to oxygen and sulfur. This finding reveals new insights into the volatile biogeochemical phosphorus cycle.
Area of Science:
- Chemistry
- Biogeochemistry
Background:
- Phosphorus (P) is vital for all life.
- Atmospheric phosphine suggests a volatile biogeochemical P cycle.
Purpose of the Study:
- Investigate P's ability to form OH···P hydrogen bonds.
- Determine P's hydrogen bond accepting strength.
Main Methods:
- Matrix isolation spectroscopy to detect alcohol-trimethylphosphine complexes.
- Room-temperature gas-phase spectroscopy to observe OH-stretching vibrations.
- Quantum chemical calculations to analyze hydrogen bond properties.
Main Results:
- Successfully detected three bimolecular alcohol-trimethylphosphine complexes.
- Observed significant OH-stretching frequency red shifts.
- Calculations indicate P is a hydrogen bond acceptor comparable to O and S, but weaker than N.
- Electrostatic potentials reveal a negative potential area on P facilitating hydrogen bond formation.
Conclusions:
- Phosphorus acts as a hydrogen bond acceptor, contributing to understanding its biogeochemical cycling.
- The strength of P as a hydrogen bond acceptor is comparable to O and S.
- This research expands the known interactions involving phosphorus in chemical and biological systems.
More Related Videos
08:21Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method
Published on: May 18, 2018
15.3K
14:07Preparation and Use of Carbonyl-decorated Carbenes in the Activation of White Phosphorus
Published on: October 3, 2014
14.3K
Related Concept Videos
01:01Phosphodiester Linkages
114.4K
Overview
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...
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...
114.4K
01:04Hydrogen Bonds
16.3K
A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
16.3K
00:26Hydrogen Bonds
136.4K
Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
136.4K
02:28Electrophiles
13.7K
This lesson explains the definition, classification, and characteristic features of an electrophile that are key features of nucleophilic substitution reactions. An analysis of their charge and orbital picture helps understand their reactivity for seeking electrons. Electrophiles can be classified into positive and neutral species. Other classes include free radicals and polar functional groups.
While a positive electrophile, like a proton, reacts due to its vacant, low-energy 1s orbital, the...
While a positive electrophile, like a proton, reacts due to its vacant, low-energy 1s orbital, the...
13.7K
02:36Molecular Geometry and Dipole Moments
20.2K
The VSEPR theory can be used to determine the electron pair geometries and molecular structures as follows:
20.2K
01:22Phosphate Buffer
6.2K
The phosphate buffer system is a critical biological mechanism for maintaining pH stability in the body. This system operates primarily through two components: sodium dihydrogen phosphate (NaH2PO4), which acts as a weak acid, and sodium hydrogen phosphate (Na2HPO4), which serves as a weak base.
Sodium dihydrogen phosphate does not fully dissociate in neutral or acidic solutions. When a strong base, such as sodium hydroxide (NaOH), is introduced into the solution, sodium dihydrogen phosphate...
Sodium dihydrogen phosphate does not fully dissociate in neutral or acidic solutions. When a strong base, such as sodium hydroxide (NaOH), is introduced into the solution, sodium dihydrogen phosphate...
6.2K