Research Guides: Chemistry & Biochemistry: Spectra

Visible Spectrum of Sunlight

Figure 2.5.7 The Visible Spectrum of Sunlight The characteristic dark lines are mostly due to the absorption of light by elements that are present in the cooler outer part of the sun’s atmosphere; specific elements are indicated by the labels. The lines at 628 and 687 nm, however, are due to the absorption of light by oxygen molecules in Earth’s atmosphere.

Source: Course LibreTexts - General Chemistry for Engineering - Unit 1. Atomic Structure, Chapter 2.5 Atomic Spectra and Models of the Atom

Online Resources for Spectral Data

KnowItAll Academic Edition - Free Chemistry Software
Free spectra software package by BIO RAD for students. Draw 3D, structures, import spectra for lab reports, interpret IR/Raman spectra, process IR/NMR/Raman spectra, and access Sadtler Spectroscopy Handbooks online.
NIST Chemistry WebBook
NIST Standard Reference Database Number 69 - National Institute of Standards and Technology, U.S. Department of Commerce.
NMRShiftDB2
NMR database (web database) for organic structures and their nuclear magnetic resonance (nmr) spectra. It allows for spectrum prediction (13C, 1H and other nuclei) as well as for searching spectra, structures and other properties. Last not least, it features peer-reviewed submission of datasets by its users. The nmrshiftdb2 software is open source, the data is published under an open content license. 2010-2017
Spectra & Spectral Data Web Sources | University of Texas Libraries
Any resource with an open lock icon is open access and free to you.
Spectral Database for Organic Compounds - SDBS
A free site organized by National Institute of Advanced Industrial Science and Technology (AIST), Japan.
WebSpectra - Problems in NMR and IR Spectroscopy | UCLA
An electronic workbook of spectroscopy problems and answers. "This site was established to provide chemistry students with a library of spectroscopy problems. Interpretation of spectra is a technique that requires practice - this site provides 1H NMR and 13C NMR, DEPT, COSY and IR spectra of various compounds for students to interpret."

Spectral Data eBooks

Structure Determination of Organic Compounds: Tables of Spectral Data

An eBook to aid with interpreting molecular spectra for elucidating and confirming the structure of organic compounds.

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Visible Spectrum of Sunlight

Online Resources for Spectral Data

Spectral Data eBooks

Structure Determination of Organic Compounds: Tables of Spectral Data

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