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Woodward's rules, named after Robert Burns Woodward and also known as Woodward–Fieser rules (for Louis Fieser) are several sets of empirically derived rules which attempt to predict the wavelength of the absorption maximum (λ max) in an ultraviolet–visible spectrum of a given compound.
Examining organic compounds, the relative intensity of the molecular ion peak diminishes with branching and with increasing mass in a homologous series. In the spectrum for toluene for example, the molecular ion peak is located at 92 m/z corresponding to its molecular mass .
Chemical shift δ is usually expressed in parts per million (ppm) by frequency, because it is calculated from [5] =, where ν sample is the absolute resonance frequency of the sample, and ν ref is the absolute resonance frequency of a standard reference compound, measured in the same applied magnetic field B 0.
NMR Spectroscopy in Inorganic Chemistry (2nd edition) Jonathan A. Iggo, Konstantin Luzyanin: 30 April 2020 84: Computers in Chemistry: Pete Biggs: 6 January 2000 85: Polymers: David J. Walton and Phillip Lorimer: 18 May 2000 86: From Molecules to Crystallizers: Roger J. Davey and John Garside: 11 May 2000 87: Foundations of Organic Chemistry ...
Joseph B. Lambert (born 1940) is an educator, organic chemist, archaeological chemist, and nuclear magnetic resonance spectroscopist. He grew up in the San Antonio, Texas, area and graduated from Alamo Heights High School in 1958.
William Kemp may refer to: William Kempe (died 1603), also spelled William Kemp, English actor and dancer, one of the original actors in William Shakespeare's plays; William D. Kemp (architect), architect; William E. Kemp (1889–1968), mayor of Kansas City, Missouri, U.S. William Herbert Kemp (1881–1957), British chemist and politician
Thomson's student Francis William Aston [6] continued the research at the Cavendish Laboratory in Cambridge, building the first full functional mass spectrometer that was reported in 1919. [7] He was able to identify isotopes of chlorine (35 and 37), bromine (79 and 81), and krypton (78, 80, 82, 83, 84 and 86), proving that these natural ...
Robert Burns Woodward ForMemRS HonFRSE (April 10, 1917 – July 8, 1979) was an American organic chemist.He is considered by many to be the preeminent synthetic organic chemist of the twentieth century, [3] having made many key contributions to the subject, especially in the synthesis of complex natural products and the determination of their molecular structure.