Geoffroy

Ger. Weisse Masse, white mass later Wisuth and Bisemutum) In early times bismuth was confused with tin and lead. Claude Geoffroy the Younger showed it to be distinct from lead in 1753. 

It is noteworthy that the above rule connects two quite different values, because the temperature dependence of is governed by the rate constant of incoherent processes, while A characterizes coherent tunneling. In actual fact, A is not measured directly, but it is calculated from the barrier height, extracted from the Arrhenius dependence k T). This dependence should level off to a low-temperature plateau at 7 < This non-Arrhenius behavior of has actually been observed by Punnkinen [1980] in methane crystals (see fig. 1). A similar dependence, also depicted in fig. 1, has been observed by Geoffroy et al. [1979] for the radical... 

M. Frank-Neumann, P. Geoffroy, and J. J. Lohmann, Tetrahedron Lett. 24,1775(1983). 

Photochemistry of transition metal hydride complexes. G. L. Geoffroy, Prog. Inorg. Chem., 1980, 27, 123-151 (58). 

For a review on metal-ketene complexes see Geoffroy GL, Bassner SL (1988) Adv Organomet Chem 28 1... 

Hydride Complexes of Ruthenium, Rhodium, and Iridium G. L. Geoffroy and J. R. Lehman Structures and Physical Properties of Polynuclear Carboxylates Janet Catterick and Peter Thornton... 

Rosa P, Gouverd C, Bernardinelli G, Berclaz T, Geoffroy M (2003) J Phys Chem A... 

Dutan C,Shah SK, Smith RC, Choua S, Berclaz T,Geoffroy M, Protasiewicz JD (2003) In-org Chem 42 6241... 

Loss S, Magistrate A, Cataldo L, Hoffmann S, Geoffroy M, ROthlisberger U, Griitzmacher H (2001) Angew Chem Int Ed 40 723... 

Sarret G, L Avoscan, M Carriere, R Collins, N Geoffroy, F Carrot, 1 Coves, B Gouget (2005) Chemical forms of selenium in the metal-resistant bacterium Ralstonia metallireducens CH34 exposed to selenite and selenate. AppZ Environ Microbiol 71 231-2337. 

Viriot ML, Carre MC, Geoffroy-Chapotot C, Brembilla A, Muller S, Stoltz J-F (1998) Molecular rotors as fluorescent probes for biological studies. Clin Hemorheol Mictocirc 19 151-160... 

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