Infrared Spectra of Phosphorus Compounds

A spectra-structure correlation chart for phosphorus compounds is presented, and the existing evidence for these correlations is summarized



Powdered phosphate salts absorb in a number of discrete regions which are characteristic of the type of anion present The use of this data for qualitative identification is discussed, and examples are given of the use of the pressed disc technique for quantitative work

Infra‐red analysis of phosphorus compounds

Vibrational assignment and rotational isomerism in some simple organic phosphates

Reactions of the tertiary phosphines R3P (R = Me, Bu, Oct, Cy, Ph) with 35% aqueous H2O2 gives the corresponding oxides as the H2O2 adducts R3PO·(H2O2)x (x = 0.5–1.0). Air oxidation leads to a mixture of products due to the insertion of oxygen into one or more P–C bonds. 31P NMR spectroscopy in solution and in the solid state, as well as IR spectroscopy reveal distinct features of the phosphine oxides as compared to their H2O2 adducts. The single crystal X-ray analyses of Bu3PO and [Cy3PO·(H2O2)]2 show a PO stacking motif for the phosphine oxide and a cyclic structure, in which the six oxygen atoms exhibit a chair conformation for the dimeric H2O2 adduct. Different methods for the decomposition of the bound H2O2 and the removal of the ensuing strongly adsorbed H2O are evaluated. Treating R3PO·(H2O2)x with molecular sieves destroys the bound H2O2 safely under mild conditions (room temperature, toluene) within one hour and quantitatively removes the adsorbed H2O from the hygroscopic phosphine oxides within four hours. At 60 °C the entire decomposition/drying process is complete within one hour.

https://www.chem.tamu.edu/rgroup/bluemel/pdf/67%20PDF.pdf

Synthesis, purification, and characterization of phosphine oxides and their hydrogen peroxide adducts.

Es werden die Kraftkonstanten und Bindungsgrade einer Reihe von Nichtmetall-Oxyden und -Oxyhalogeniden berechnet



Da der Bindungsgrad mit der Multiplizitat einer Bindung gleichbedeutend ist, konnen fur die fraglichen Molekeln genaue Strukturformeln angegeben werden Fur die Kohlenstoff- und Stickstoffoxyde stimmen die Ergebnisse im wesentlichen mit den bisherigen Anschauungen uberein



Dagegen werden in den Oxyden und Oxyhalogeniden von Schwefel und Phosphor uberall Doppelbindungen nachgewiesen Damit ist das Oktettprinzip fur diese Verbindungen nicht masgebend; in der hochsten Wertigkeitsstufe wird ein Elektronendodezett angestrebt



In den Sulfoxyden und Phosphinoxyden sowie den Phosphorthiohalogeniden sind keine reinen Doppelbindungen vorhanden; hier zeigen sich Ubergangsformen zur semipolaren Bindung

Kraftkonstante und Strukturchemie. IV. Struktur der Nichtmetall-Oxyde und -Oxyhalogenide

The infrared absorption spectrum of solid trimethylphosphine oxide has been obtained over the range 450 to 5000 cm−1. A vibrational assignment is proposed for nearly all the bands observed in the infrared spectrum as well as for the Raman frequencies observed in aqueous solution. It is shown that the fundamental frequencies of the skeletal vibrations are compatible with reasonable values of the force constants for phosphorus‐oxygen and phosphorus‐carbon bonds.

The Infrared and Raman Spectra of Trimethylphosphine Oxide

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

D. C. Smith

Author Tools

Chat about Author

Papers

The Infrared and Raman Spectra of Trimethylphosphine Oxide