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issue	11
is Is Part Of of	Magnetic resonance studies. II. Investigation of phosphonium salts containing unsaturated groups by carbon-13 and phosphorus-31 nuclear magnetic resonance The +E collision induced mass spectra from negative ions Photodetachment of electrons from phenoxides and thiophenoxide Chemical consequences of orbital interactions. II. Ethylene and butadiene bridged polycyclic hydrocarbons containing three- and four-membered rings Selective population transfer (SPT) in silicon-29 Fourier transform nuclear magnetic resonance spectroscopy Helium(I) photoelectron spectrum of p-quinodimethane Chemistry of heterocyclic compounds. 20. Multidentate chelating agents. Pyridine macrocyclic ether synthesis Exciplex quenching. Geometric and electronic requirements Nucleotide chemistry. XX. Phosphite coupling procedure for generating internucleotide links Structural effects on photophysical properties in saturated amines. IV. Intramolecular excimer formation High pressure studies. XVII. Thermal decomposition of cyclic azo compounds Nuclear magnetic resonance relaxation in frozen lysozyme solutions Mechanism of the olefin metathesis reaction Optically active amines. XVIII. Spectral observations on optically active N-substituted pyrroles Porphyrins. XXXI. Chemical properties and electronic spectra of d0 transition-metal complexes Role of water in the hydrolysis of tetrahydroborate(1-) ion Mechanism of the reaction of dithiols with flavins Chemically significant interactions between ruthenium ions in oxo-bridged complexes of ruthenium(III) Reactions of metal carbonyl anions with methyl organometallic compounds Reactions of metals with vitamins. I. Crystal and molecular structure of thiaminium tetrachlorocadmate monohydrate Route to prostaglandins via a general synthesis of 4-hydroxycyclopentenones Electrochemical scrutiny of organometallic iron complexes and hexamethylbenzene in a room temperature molten salt Conformational equilibrium trapping by high-vacuum cryogenic deposition Magnetic resonance studies. I. Investigation of phosphorus compounds by carbon-13 and phosphorus-31 nuclear magnetic resonance for phosphonium salts containing saturated groups Acidities of carbon acids. V. Correlation of acidities in dimethyl sulfoxide with gas-phase acidities Base catalyzed rearrangement of bispropargyl sulfides, ethers, and amines. Synthesis of novel heterocyclic systems Protonation reactions of electron adducts of acrylamide derivatives. Pulse radiolytic-kinetic spectrophotometric study X-ray structure determination of the 1:1 charge transfer complex of naphthalene and tetrachlorophthalic anhydride at -153.deg. Consecutive 3,5 shifts in pyridine 1-oxide rearrangements. One-step furopyridine synthesis Homoallyl interaction between the nitrogen lone pair and the nonadjacent .pi. bond. Proton and carbon-13 nuclear magnetic resonance contact shifts and orientation of the lone pair electrons in 2-azabicyclo[2.2.2]oct-5-enes Chemical evolution. XXVI. Photochemistry of methane, nitrogen, and water mixtures as a model for the atmosphere of the primitive earth Reactions of coupled three-membered rings. VII. Does the photochemical bicyclopropenyl rearrangement involve a prismane intermediate .sigma.- vs. .pi.-Bonded organoactinides. Synthesis and structural analysis of tris(.eta.5-cyclopentadienyl)-.eta.1-2-methylallyluranium(IV) Composition of lithium aluminum hydride, lithium borohydride, and their alkoxy derivatives in ether solvents as determined by molecular association and conductance studies AAl2 Hydrolysis of 2,6-dimethylbenzimidate esters in sulfuric acid solutions Comparative study of the structure and conformation in aqueous solution of the antileukemic agent 6-thiopurine ribonucleoside 5'-phosphate to that of common purine 5'-nucleotides Three phase test for reaction intermediates. Evidence for monomeric metaphosphate Reactions of coupled three-membered rings. VIII. Bicyclopropenyl Cope rearrangement Solvation energies of aliphatic ammonium ions in water and fluorosulfuric acid Optical spectra and the free-volume model for the transport behavior of glass-forming melts Intramolecular metalation with methylmanganese and methylrhenium carbonyl complexes. V. Synthesis and pathways of formation of secondary metalation products derived from tetracarbonylmethyltriphenylphosphinemanganese and -rhenium derivatives Elimination mechanisms. Deuteroxide/hydroxide isotope effects as a measure of proton transfer in the transition states for E2 elimination of 2-(p-trimethylammoniophenyl)ethyl 'Onium ions and halides. Mapping of the reaction-coordinate motion Ortho neighboring-group participation of amides in photolytic hydration of triple bonds Composition of Grignard compounds. X. NMR, ir, and molecular association studies of some methylmagnesium alkoxides in diethyl ether, tetrahydrofuran, and benzene Highly activated cyclopropane for homoconjugate reactions Stereospecific acid-catalyzed rearrangement of 1,6-dimethylpentacyclo[6.4.0.02,7.03,10.06,9]dodecane-5,12-dione to a bisnordiadamantane Influence of solvent on the motion of molecules immobilized on polystyrene matrices and on glass surfaces Hydrolysis of N,N-disubstituted imidate esters Homospecific and heterospecific dimerization of nitroso compounds. Controversy surrounding the nature of the 2-chloronitrosocyclohexane dimer obtained by addition of nitrosyl chloride to cyclohexene Photoinduced CIDNP at low radiation levels. Proton CIDNP from laser irradiation of di-tert-butyl ketone Nuclear magnetic resonance of photoexcited triplet states. I. Measurement of the rate of degenerate singlet-triplet exchange for anthracene in solution New peripheral metal complexes related to chlorophyll Chemistry of dicarbonyl .eta.5-cyclopentadienyliron complexes. General syntheses of monosubstituted .eta.2-olefin complexes and of 1-substituted .eta.1-allyl complexes. Conformational effects on the course of deprotonation of (.eta.2-olefin) cations Quaternary ammonium enolates as synthetic intermediates. Regiospecific alkylation reaction of ketones Phosphine chemistry of iron(0) and -(II) Intramolecular metalation with methylmanganese and methylrhenium carbonyl complexes. IV. Primary metalation products derived from the thermolysis of tetracarbonylmethyltriphenylphosphinemanganese and related derivatives Copper(II) chelation by Dopa, epinephrine, and other catechols Stable carbocations. CLXXXVI. Relation of carbon-13 NMR shifts to the effect of methyl substitution on electronic charge distribution at trigonal carbons Electron spin resonance study of the 1-norbornyl radical General method for the synthesis of 1,3-dienes. Simple syntheses of .beta.- and trans-.alpha.-farnescene from farnesol Abnormal regioselectivity in the photochemical cycloaddition of singlet trans-stilbene with conjugated dienes Substituent control of regiospecific pathways in di-.pi.-methane photorearrangements which utilize benzo-vinyl bonding schemes Electronic structure of the Criegee intermediate. Ramifications for the mechanism of ozonolysis Methylthiotrimethylsilane. Versatile reagent for thioketalization under neutral conditions Generation of a silicenium ion in solution Protecting group for the carbon-carbon double bond Activation of molecular hydrogen by a transition metal carbonyl radical species Solvent effects on the fluorescence of 1-(dimethylamino)-5-naphthalenesulfonic acid and related compounds Electron spin resonance study of liquids during photolysis. XIX. Aliphatic dipeptides Unusual mechanism for 1,3-hydrogen migration in the photochemistry of 4-methyl-1,1,4-triphenyl-1-pentene Spectroscopic detection of the twist-boat conformation of cyclohexane. Direct measurement of the free energy difference between the chair and the twist-boat Solvent dependence of the thallium-205(I) nuclear magnetic resonance chemical shift Electrogenerated chemiluminescence. XXII. Generation of exciplexes in the radical ion reaction Kinetics of deprotonation of organic free radicals in water. Reaction of glycolate (HOCHCO2-), (HOCHCONH2), and (HOCCH3CONH2) with various bases Nucleic base-metal ion interactions. Acidity of the N(1) or N(3) proton in binary and ternary complexes of manganese(2+), nickel(2+), and zinc(2+) ions with the 5'-triphosphates of inosine, guanosine, uridine, and thymidine Fourier transform difference spectra method. Application to structural elucidation of andranginine, a novel indole alkaloid Book Reviews Redox potentials of free radicals. III. Reevaluation of the method Determination of the SiPc-O-SiMe bond angle common to the shift reagent compounds (CH3)3SiO(PcSiO)xSi(CH3)3(X = 1-5) by an induced shift technique and determination of the structure of PcSi[OSi(CH3)3]2 by x-ray crystallography Spectroscopic investigations of decacarbonylditungstate(2-) and hydrogen decacarbonylditungstate(1-) Determination of triplet-energy levels in azomethine dyes by energy-transfer measurements General synthetic method for non-K-region arene oxides Manganese(II) porphyrins. Synthesis, structures, and preference for five-coordination Organoselenium chemistry. .alpha.-Lithio selenoxides and selenides. Preparation and further transformation to olefins, dienes, and allylic alcohols Masthead Excimer fluorescence of trans-stilbene and diphenylacetylene Azetidinone antibiotics. XII. Chemical transformations of penicillins and cephalosporins. Mechanism and stereochemistry of the interconversions of penam and cepham systems .alpha.-Substituted sulfoxides. IV. Phenyl diazomethyl sulfoxide (phenylsulfinyldiazomethane) and phenylsulfinyl carbene, a highly stereoselective cyclopropanating agent Biogenetic-type syntheses of polycyclic polyketide metabolites using partially protected .beta.-hexa- and .beta.-heptaketones. 6-Hydroxymusizin, barakol, emodin, and eleutherinol Raman spectra of alkali metal-iodine matrix reaction products. Resonance Raman spectrum of the iodine molecular anion, I2- Stereochemistry of complex inorganic compounds. XXXV. Complex containing a ligand that spans trans positions Energy barrier to symmetry-forbidden 1,3-hydrogen shifts in simple oxonium ions. Metastable peaks from fast dissociations

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