O Structures

Margaritondo G (ed) 1988 E/eofro/r/o Structure of Semiconductor Heterojunctions (MWan Kluwer)... 

Jordan, R.S., Pabo, C.O. Structure of the X complex at 2.S A resolution details of the repressor-operator interactions. Science 242 893-899, 1988. 

Systems 2 and 3 are cross-conjugated, but 5 is not, and it might have been expected that a-substituted compounds would be more prone to exist in the aromatic form 1 than the -compounds to exist as 4. From the limited evidence available, the reverse appears to be the case. When the hetero atom is not a very strong electron donor, i.e., Z — S or O, structure 3 would be expected to be relatively more stable than 2, and this is supported by the evidence available. When Z = NR, the difference in the stabilities of 2 and 3 could be smaller. 

The octahedron is classified into the c/o o-structure by Wade [3,4]. Closo-structures with n skeletal atoms are stable when they have 4n-i- 2 valence electrons. Wade s rules predict that the 26 (= 4 x 6 + 2) valence electrons could stabilize the regular octahedrons since n is 6 for the octahedron. This prediction is contained in our 6N + 14 (N= 2) valence electron rule. Our rule also predicts the stability of octahedral metal clusters with the other numbers (14 and 20) of valence electrons. 

The displacement of a ligand L from the phosphorus atom of a phosphoranyl radical can easily occur via a-scission of the L-P bond (Scheme 23). The fragmentation is a regiospecific process, i.e., the leaving group must be apical (Scheme 23) and it occurs via an intermediate o" structure (Fig. 5). 

For W(100)/O, Benninghoven et al. (14) made some conclusions concerning the different stages of the reaction based on the behavior of the O ", W+, WO+, O, WOj and WOj SIMS intensities as a function of exposure. They concluded that atdissociative adsorption occurred and was characterized by W+ and O emission. Between 1 and lOL, WOj emission was observed and considered to be representative of a "monomolecular W-O structure on the surface. Above lOL, WO emission was observed and it was suggested that 3D oxidation was occurring. 

The signal for C-3 in 54 belongs to a typical —O—CH—O— structure while that in 55 belongs to a normal —OCH2— type. 

Vaughey J.T, Johnson C. S, Kropf A. J, Benedek R, Thackeray M. M, Tostmann H., Sarakonsri T., Hackney S., Fransson L., Edstrom K., Thomas J.O., Structural and mechanistic features of intermetallic materials for lithium batteries, J. Power Sources,... 

Veith, M., and Recktenwald, O. Structure and Reactivity of Monomeric, Molecular Tin(II)... 

An organic compound that contains the bivalent -O-O- structure and which may be considered to be a structural derivative of hydrogen peroxide where one or both of the hydrogen atoms has been replaced by an organic radical. 

L.V. Radushkevich, V.M. Lukyanovich, O structure ugleroda, obrazujucegosja pri ter-miceskom razlozenii okisi ugleroda na zelaznom kontakte (in Russian), Zum. Fisic. Chim. 26 (1952) 88-95. 

Beckmann, O. Structural changes of KMnFj at low temperatures. Acta Cryst. 13, 506 (1960). 

Flutamides Electron-withdrawing groups on the benzene ring (e.g., F, Cl, N02, CN), Ph-N-C-O structure... 

Saint Girons, I. Gilles, A.-M. Margarita, D. Michelson, S. Monnot, M. Fermandjian, S. Danchin, A. Barzu, O. Structural and catalytic characteristics of Escherichia coli adenylate kinase. J. Biol. Ghent., 262, 622-629 (1987)... 

Briozzo, P. Golinelli-Pimpaneau, B. Gilles, A.M. Gaucher, J.R Burlacu-Miron, S. Sakamoto, H. Janin, J. Barzu, O. Structures of Escherichia coli CMP kinase alone and in complex with CDP a new fold of the nucleoside monophosphate binding domain and insights into cytosine nucleotide specificity. Structure, 6, 1517-1527 (1998)... 

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