Bond Energies, Valence State Energies And Resonance¹,²

One of 300 reports in the series: UCRL (Series) available on this site.
Thumbnail image of item number 1 in: 'Bond Energies, Valence State Energies And Resonance¹,²'.
Thumbnail image of item number 2 in: 'Bond Energies, Valence State Energies And Resonance¹,²'.
Thumbnail image of item number 3 in: 'Bond Energies, Valence State Energies And Resonance¹,²'.
Thumbnail image of item number 4 in: 'Bond Energies, Valence State Energies And Resonance¹,²'.
Showing 1-4 of 54 pages in this report.

PDF Version Also Available for Download.

Description

Previous attempts to interpret chemical structure in terms of x-electron resonance have been recently criticized. A reinterpretation of the lengths of the C-C bonds in terms of orbital radii has not revealed any effects of x-electron resonance in the ground states of classical molecules such as 1, 3-butadiene, methyl acetylene, etc. Even in a non-classical molecule such as benzene, resonance shortening of the CC bond is only in terms of the strengths of the hybrid orbitals. If the lengths and force constants of the C-C bonds vary with hybridization, so also must their bond energies. If resonance is not important … continued below

Physical Description

54 pages : graph, tables

Creation Information

Somayajulu, G. R. February 1961.

Context

This report is part of the collection entitled: TRAIL Microcard Collection and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Author

Sponsor

Publisher

Audiences

We've identified this report as a primary source within our collections. Researchers, educators, and students may find this report useful in their work.

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Titles

Description

Previous attempts to interpret chemical structure in terms of x-electron resonance have been recently criticized. A reinterpretation of the lengths of the C-C bonds in terms of orbital radii has not revealed any effects of x-electron resonance in the ground states of classical molecules such as 1, 3-butadiene, methyl acetylene, etc. Even in a non-classical molecule such as benzene, resonance shortening of the CC bond is only in terms of the strengths of the hybrid orbitals. If the lengths and force constants of the C-C bonds vary with hybridization, so also must their bond energies. If resonance is not important in classical molecules, the heat of atomization of a classical molecule must be given by the sum of either the energies of the bonds or the contributions of the atoms present in it. To test this theory, we have estimated the contributions of some standard carbon atoms, viz., primary, secondary, tertiary, quaternary, trigonal, and diagonal carbon atoms.

Physical Description

54 pages : graph, tables

Notes

Digitized from microopaque cards (2).

Includes bibliographic references

Subjects

Library of Congress Subject Headings

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • SuDoc Number: Y 3.At 7:22/UCRL-9590
  • Report No.: UCRL-9590
  • Accession or Local Control No: metadc1254655
  • Archival Resource Key: ark:/67531/metadc1254655

Collections

This report is part of the following collections of related materials.

TRAIL Microcard Collection

Imaged from microcard, these technical reports describe research performed for U.S. government agencies from the 1930s to the 1960s. The reports were provided by the Technical Report Archive and Image Library (TRAIL).

About | Browse this Collection

Technical Report Archive and Image Library

The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports. The mission of TRAIL is to ensure preservation, discoverability, and persistent open access to government technical publications regardless of form or format.

About | Browse this Collection

What responsibilities do I have when using this report?

Digital Files

When

Dates and time periods associated with this report.

Creation Date

  • February 1961

Added to The UNT Digital Library

  • Feb. 5, 2022, 9:49 a.m.

Description Last Updated

  • April 4, 2023, 3:43 p.m.

Usage Statistics

When was this report last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 1
More Statistics

Where

Geographical information about where this report originated or about its content.

Place Name

Publication Place

Map Information

  • map marker Place Name coordinates. (May be approximate.)
  • Repositioning map may be required for optimal printing.

Mapped Locations

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Bond Energies, Valence State Energies And Resonance¹,²'.
Thumbnail image of item number 2 in: 'Bond Energies, Valence State Energies And Resonance¹,²'.
Thumbnail image of item number 3 in: 'Bond Energies, Valence State Energies And Resonance¹,²'.
Thumbnail image of item number 4 in: 'Bond Energies, Valence State Energies And Resonance¹,²'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Somayajulu, G. R. Bond Energies, Valence State Energies And Resonance¹,², report, February 1961; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1254655/: accessed December 1, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

Back to Top of Screen