The frequency scale at the bottom of the chart is given in units of Reciprocal centimeters (cm-1) rather than Hz, because the numbers are more manageable.

Reciprocal centimeter

Reciprocal length or inverse length is a measurement used in several branches of science and mathematics. As the reciprocal of length, common units used for this measurement include the reciprocal metre or inverse metre (m

Quantities measured in reciprocal length include:

- absorption coefficient or attenuation coefficient, in materials science

- curvature of a line, in mathematics

- gain, in laser physics

- magnitude of vectors in reciprocal space, in crystallography

- more generally any spatial frequency e.g. in cycles per unit length

- optical power of a lens, in optics

- rotational constant of a rigid rotor, in quantum mechanics

- wavenumber, or magnitude of a wavevector, in spectroscopy

- density of a linear feature in hydrology and other fields; see kilometre per square kilometre

This is an excerpt from the article Reciprocal centimeter from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.

^{−1}), the reciprocal centimetre or inverse centimetre (cm^{−1}), and, in optics, the dioptre.Quantities measured in reciprocal length include:

- absorption coefficient or attenuation coefficient, in materials science

- curvature of a line, in mathematics

- gain, in laser physics

- magnitude of vectors in reciprocal space, in crystallography

- more generally any spatial frequency e.g. in cycles per unit length

- optical power of a lens, in optics

- rotational constant of a rigid rotor, in quantum mechanics

- wavenumber, or magnitude of a wavevector, in spectroscopy

- density of a linear feature in hydrology and other fields; see kilometre per square kilometre

This is an excerpt from the article Reciprocal centimeter from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.

The article Reciprocal centimeter at en.wikipedia.org was accessed 13 times in the last 30 days. (as of: 08/17/2014)

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Wavenumber - Wikipedia, the free encyclopedia

In the SI units, wavenumber is expressed in units of reciprocal meters (m−1), but
in spectroscopy it is usual to give wavenumbers in Reciprocal centimeters ...

en.wikipedia.org/wiki/Wavenumber

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Reciprocal length - Wikipedia, the free encyclopedia

As the reciprocal of length, common units used for this measurement include the
reciprocal metre or inverse metre (m−1), the reciprocal centimetre or inverse ...

en.wikipedia.org/wiki/Reciprocal_length

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CCCBDB What's a cm-1?

A Reciprocal centimeter (or wavenumber) is used as an energy unit. It is often
used for the energy of vibrational levels and transitions, and for electronic energy
...

cccbdb.nist.gov/wavenumber.asp

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Converting and dealing with inverse centimeters (cm-1), microns

Tutorial: inverse cm to microns showing how wavenumbers, wavelength and
frequency are related.

www.powerstream.com/inverse-cm.htm

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How It Looks From Here: How To Convert To and From Wavenumbers

Jul 9, 2010 ... This post addresses conversion to and from wavenumbers (cm-1) (also called Reciprocal centimeters, inverse centimeters or Kaisers).

how-it-looks.blogspot.com/2010/07/how-to-convert-to-and-from-wavenumbers.html

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Wavenumbers and Frequencies

The frequency ν in the SI system is measured in reciprocal seconds 1 s. − which
is called a ... centimeters as a measure of the frequency of radiation. This unit is ...

www.chemistry.msu.edu/faculty/harrison/cem483/wavenumbers.pdf

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Frequency in units of inverse length? - Physics Forums

You have a wavenumber of N/cm indicating the number of waves per unit ...
energy is proportional to reciprocal wavelength. Planck's constant ...

www.physicsforums.com/showthread.php?t=177300

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wave number (physics) -- Encyclopedia Britannica

... wavelength of 5.8 × 10 -5 cm; this wavelength corresponds to a frequency (ν) of ... reciprocal metres (1/m, or m -1) and reciprocal centimetres (1/cm, or cm -1).

www.britannica.com/EBchecked/topic/637882/wave-number

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Energy Unit Conversions - Newlight Photonics Inc.

Unit, Comments. Wavenumber(cm-1), A wavelength of energy that is also called
a Reciprocal centimeter. Wavenumbers are obtained when frequency is ...

www.newlightphotonics.com/energy-converter2.html

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Reciprocal centimeter - Medical Dictionary - The Free Dictionary

The number of waves per centimeter (cm-1), used to simplify the large and
unwieldy numbers heretofore used to designate frequency. See also: wave
number.

medical-dictionary.thefreedictionary.com/Reciprocal+centimeter

Search results for "Reciprocal centimeter"

Google: approx. 2.790.000

Reciprocal centimeter in science

Infrared Spectroscopy - Chemistry

[PDF]Infrared Spectroscopy: Theory - Organic Chemistry at CU Boulder

Online edition for students of organic chemistry lab courses at the University of
Colorado, Boulder, Dept of ... This is the region of wavelengths between 3 x 10–4
and 3 x 10–3 cm. ... rithm, to the base 10, of the reciprocal of the transmittance:.

Wavenumber - Wikipedia, the free encyclopedia

In the SI units, wavenumber is expressed in units of reciprocal meters (m−1), but
in spectroscopy it is usual to give wavenumbers in Reciprocal centimeters ...

Ponderal index - Wikipedia, the free encyclopedia

BMI in a 180 cm tall person ... grams, centimetres, 2.4 for 12 month old infant ...
The source quoted (Oregon State University) states that typical healthy PI values
...

Instructor's Manual - Conductivity - Grand Valley State University

Jan 10, 2013 ... The unit of measurement for conductivity is expressed in either microSiemens (
uS/cm) or micromhos (umho/cm) which is the reciprocal of the ...

College Directory : Education & Human Ecology

Education. 2005 Ph.D., Pennsylvania State University Human Development and
Family Studies ... Kotila, L. E., Schoppe-Sullivan, S. J., & Kamp Dush, C. M. (In
Press). ... Chaos as a social determinant of child health: Reciprocal associations?

Lisa Dawn Hamilton - Mount Allison University

In particular, I am interested in the reciprocal relationship between behavior,
adrenal and ... Rellini, A. H., Hamilton, L. D., Delville, Y., & Meston, C. M. (2009).

Wisconsin Legislature: 459.34(2)(cm)

... in audiology from a college or university approved by the examining board, ...
in those states or territories according to the terms of the reciprocal agreements.

Majors - University of California Education Abroad Program (UCEAP)

Some majors have restricted enrollment or are not open to Reciprocal Exchange
students. Before you choose your major, review the UC Undergraduate Majors ...

wave number: Definition from Answers.com

It has dimensions of reciprocal length, so its SI unit is m−1 and cgs unit cm−1 (in
this context .... Oxford Dictionary of Biochemistry Oxford University Press. Oxford ...

Books on the term Reciprocal centimeter

Optical Thin Films: User Handbook

A common unit for this scale is Reciprocal centimeters. The conversion factor
between micrometers and Reciprocal centimeters is 104. Because the dimensions
of these two units are the reciprocal of each other, it is a matter of dividing into ...

Chemical Physics: Electrons and Excitations

(2.16) n n If atomic units are used in Equation 2.16 and Ru is expressed in Reciprocal centimeter (cm") and the velocity of light c in cm/s, the fourth member
will be expressed in joule (J ) if h is expressed in Js. Equation 2.16 happens to be
the ...

Biochemical Calculations: How to Solve Mathematical Problems in General Biochemistry, 2nd Edition

Designed to supplement and complement any standard biochemistry text or lecture notes, this book helps provide a balanced picture of modern biochemistry by use of elementary mathematics in understanding properties and behavior of biological molecules. It provides a balanced picture of modern biochemistry by using elementary mathematics to explore t...

The Code of Federal Regulations of the United States of America

Note: The usual unit of wavenumber Is the Reciprocal centimeter, cm-1. The
wavenumber is the reciprocal of the wavelength, \. when X is expressed in
centimeters. Zero-filling means the addition of zero-valued points to the end of a
measured ...

Dictionary of Engineering (Second Edition)

Derived from the content of the respected McGraw-Hill Dictionary of Scientific and Technical Terms, Sixth Edition, each title provides thousands of definitions of words and phrases encountered in a specific discipline. All include: * Pronunciation guide for every term * Acronyms, cross-references, and abbreviations * Appendices with conversion tabl...

Fundamentals of Fourier Transform Infrared Spectroscopy

The wavenumber of a light wave is defined as the reciprocal of the wavelength,
or where W is wavenumber. If \ is measured in cm, then W is reported as cm"1,
sometimes called Reciprocal centimeters. W is really a measure of the number of
...

The Organic Chem Lab Survival Manual, A Student's Guide to Techniques

* Praised by students and faculty for its clarity, use of humor, and appropriate amount of detail.* Emphasis on safety in the lab encourages students to maintain safe practices.* Succinct coverage of information makes it ideal for quick reference in the lab.* Short sections with targeted information make information easier to find and comprehend.

Elements of Synchrotron Light: For Biology, Chemistry, and ...

The most frequently used unit is the 'Reciprocal centimeter' (cm- i l. A photon
energy expressed in electronvolts can be converted into a wavenumber
expressed in cm-1 by using the multiplication factor =8 x 1 0-*. As to the
conversion between ...

Chemical Technicians' Ready Reference Handbook, 5th Edition

THE DEFINITIVE CHEMICAL PROCESS INDUSTRY REFERENCE--FULLY REVISED Updated to reflect the latest developments in operational procedures for today's sophisticated chemical technologies, Chemical Technicians' Ready Reference Handbook, Fifth Edition, remains the undisputed classic in the field. Expanded to include coverage for process operato...

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Blog posts on the term

Reciprocal centimeter

Reciprocal centimeter

The Far-Infrared Spectroscopy of the Troposphere (FIRST) Instrument: New Technology for Measuring Earth’s Energy Balance and Climate Change” | Earthzine

M.G. Mlynczak1, R.P. Cageao1, H. Latvakoski2, D. Kratz1, D. Johnson1, J. Mast3 1 NASA Langley Research Center, Hampton, Va.; 2 Space Dynamics Laboratory,

www.earthzine.org/2013/12/16/energy-climate-change-entry-tops-2013-earth-science-technology-showcase/
Info Tech for You – Chemistry and IT

Biological and Chemical Information Technologies
Information Technology plays in important role in the workplace, regardless of the field. One very important type of technology in chemistry is infrared (IR) spectroscopy.

infotech4you.com/?p=119
How It Looks From Here: How To Convert To and From Wavenumbers

The question of how to convert from one set of units to another comes up from time-to-time, and I think it might be helpful to have a few short posts that simply address unit conversion. This post addresses conversion to and from wavenumbers (cm-1) (also called Reciprocal centimeters, inverse centimeters or Kaisers).

how-it-looks.blogspot.com/2010/07/how-to-convert-to-and-from-wavenumbers.html
JAMA Network | JAMA Dermatology | Hepatitis C Virus and Lichen Planus: A Reciprocal Association Determined by a Meta-analysis
jamanetwork.com/article.aspx?articleid=712170

ReactIR. Infrared spectroscopy revives in the age of NMR. | Lamentations on Chemistry

We have a brand new Mettler-Toledo ReactIR 15 sitting in my lab. It is rather simple to use- just dip the probe in your reaction mixture. It needs a little LN2 to chill the detector. The software is reasonable, bearing some resemblance to iControl of the RC1 sitting a few meters away. The instrument is used to follow the…

gaussling.wordpress.com/2012/05/02/reactir-infrared-spectroscopy-revives-in-the-age-of-nmr/
IR Spectrum: Infrared Spectroscopy

1. Introduction
As noted in a previous chapter, the light our eyes see is but a small part of a broad spectrum of electromagnetic radiation.

irspectrum.blogspot.com/2011/10/test-one.html
Synthesis and Antimicrobial Evaluation of a New Series of N-1,3-Benzothiazol-2-ylbenzamides

Journal of Chemistry is a peer-reviewed, open access journal that publishes original research articles as well as review articles in all areas of chemistry.

www.hindawi.com/journals/jchem/2013/181758/
SOLUTION: Suppose that the lenght of a rectangle is one and one-third times long as its width. The area of the rectangle is 48 square centimeters. Find the lenght and width of the rectangle
www.algebra.com/cgi-bin/jump-to-question.mpl?question=138179

Essential Optics Review for the Boards: 4

Simple Lens FormulaU + D = Vor100/u (cm) + D = 100/v (cm)Where:U = vergence of object at the lensu = object position = 100/U (cm)D = lens powerV = vergence of image raysv = image position = 100/V (cm)Vergence: The reciprocal of the distance from a reference point. U = 100/u, where u is measured in centimeters or U = 40/u where u is measured in inches.

www.medrounds.org/optics-review/2006/05/4.html
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