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issue	1
is Is Part Of of	Fast and slow conformational fluctuations of RNA and DNA. Subnanosecond internal motion correlation times determined by phosphorus-31 NMR Mechanism of formation of Grignard reagents. Kinetics of reaction of alkyl halides in diethyl ether with magnesium Reaction of ozonide with antimony pentachloride or chlorosulfuric acid. Participation of antimony pentachloride-complexed or protonated carbonyl oxide Oxygen exchange as a function of epimerization of 15(R)- and 15(S)-methylprostaglandin E2. Evidence for asymmetric carbonium ion intermediates Structural dependence of oxygen-18 isotope shifts in carbon-13 NMR spectra Disproportionation of trimethylsilyl radicals to a sila olefin in the liquid phase Mechanism of formation of Grignard reagents. Kinetics of reaction of substituted aryl bromides with magnesium and with tri-n-butyltin hydride in ethereal solvents Intramolecular electrostatic and general acid catalysis in the hydrolysis of O,S-thioacetals Chemiluminescence of dimethyldioxetanone. Unimolecular generation of excited singlet and triplet acetone. Chemically initiated electron-exchange luminescence, the primary light generating reaction A stereoselective total synthesis of the Prelog-Djerassi lactone Disproportionation of trimethylsilyl at 25.degree.C. Mercury photosensitization of trimethylsilane Mechanisms of photooxygenation. 2. Formation of 1,2-dioxetanes via 9,10-dicyanoanthracene-sensitized electron-transfer processes Proton nuclear magnetic resonance characterization of the electronic structure of horseradish peroxidase compound I Selective transamination and optical induction by a .beta.-cyclodextrin-pyridoxamine artificial enzyme A copper(I)-bicarbonato complex. A water-stable reversible carbon dioxide carrier Nuclear spin-spin coupling via nonbonded interactions. 2. .gamma.-Substituent effects for vicinal coupling constants involving carbon-13 Organized monolayers by adsorption. 1. Formation and structure of oleophobic mixed monolayers on solid surfaces Interactions of gallium(III) with bleomycin antibiotics Stabilities of carbonium ions in solution. 10. A thermochemical comparison of the relative stabilities of long-lived 2-norbornyl and butyl cations in sulfuryl chloride fluoride/antimony pentafluoride Picosecond laser photophysics. Group 3A phthalocyanines Absence of stereoelectronic control in the photochemistry of two diastereomeric .beta.,.gamma.-epoxy ketones Cyclic peroxides. 92. Oxygen atom transfer by furan endoperoxides Photochemistry of ketones in solution. 57. Synthesis and photochemistry of a constrained 2-cyclohexenone Magnetic exchange in transition metal complexes. 12. Calculation of cluster exchange coupling constants with the X.alpha.-scattered wave method Triligating 11-membered rings containing tert-phosphino sites. Synthesis and structure Laser-stimulated chemical reaction of iodine + acetylene Mechanism of hydrolysis of allenyl acetates Direct formation of the steroid nucleus by a biomimetic cyclization A fixed-geometry study of the SH2 reaction on the peroxide bond Masthead Helium (HeI) and (HeII) photoelectron spectra of alloxazines and isoalloxazines Studies of solution character by molecular spectroscopy. 8. Ion sites in solutions of sodium tetracarbonylcobaltate in several solvents doped with cryptand C221 An experimental study of nucleophilic addition to formaldehyde in the gas phase Conditions favoring retention of configuration in SN2 reactions. A perturbational study Mechanism of formation of Grignard reagents. The rate of reaction of cyclopentyl bromide with magnesium is transport limited in diethyl ether Proton NMR assignment of the C-5' protons of B12 coenzyme and the synthesis of B12 coenzyme chirally labeled in the C-5' position Kinetic isotope-effect probes of transition-state structure. Vibrational analysis of model transition states for carbonyl addition Polarity of chemical bonds via hyperpolarizabilities. Determination of the direction of the phosphorus-hydrogen bond dipole of lithium dihydrogen phosphite from measurements of nonlinear optical coefficients Studies on organic fluorine compounds. 28. Synthesis and some reactions of tetrakis(trifluoromethyl)-1,4-diphosphabenzene Rediscovery of the gas-phase chemistry of difluorosilylene generated by thermal reduction Perfluorocyclopentadienone Vibrational spectra and a potential function for the monofluorocyclopropenyl-d0 and -d2 cations Spin inversion in triplet Diels-Alder reactions Transition metal hydrides as electron donors. Formation, detection, and dimerization of transient, paramagnetic radical cations from the electrochemical oxidation of tungstenocene hydrides and the crystal structure of the binuclear (Cp2W)2H3+ product Natural abundance carbon-13 NMR spectroscopy of double-stranded DNA Book Reviews Spectroscopic studies of stellacyanin, plastocyanin, and azurin. Electronic structure of the blue copper sites Reaction of 1,1-dichloro-2,2-difluoroethylene with alkyl Grignard reagents. Evidence for radical reaction involving .beta.-hydrogen atom abstraction from Grignard reagents. Implication regarding the mechanism of reduction by Grignard reagents Reactivity in methyl transfer reactions. 4. Powerful methylating agents with neutral nucleophiles Propellanes. 13. Magnitude of the norcaradiene-cycloheptatriene energy difference Lifetime of chlorophyll a radical cation in water-containing acetonitrile Phenyl participation in the cleavage of .beta.-phenethyl-palladium bonds by cupric chloride Synthesis of a nitrogen derivative of closo-2,4-dicarbaheptaborane Sensitivity enhancement in nitrogen-15 NMR: polarization transfer using the INEPT pulse sequence A study of the conformation of 2-dialkylamino-1,3-dimethyl-1,3,2-diazaphospholanes by dynamic carbon-13 NMR and nitrogen-15 NMR Solid-state photooligomerization of an extended chiral bifunctional monomer, (+)-2,4:3,5-di-O-methylene-D-mannitol 1,6-di-trans-cinnamate Organic photochemistry. 44. Intramolecular aryl-assisted photolytic cleavage of 2-benzonorbornenyl derivatives. A high excited-state exo/endo reactivity ratio and a novel Wagner-Meerwein rearrangement Two-dimensional correlated nuclear magnetic resonance of spin-coupled boron-11-proton systems Theoretical calculations of the aqueous medium effects on the basicities of primary amines A UV photoelectron spectroscopic investigation of the bonding in some tri-, tetra-, and pentacoordinated dialkylamino compounds of chromium, molybdenum, niobium, and tantalum Decomposition of azocumene on silica surfaces Asymmetric synthesis in a confined vortex: gravitational fields can cause asymmetric synthesis Hydration behavior of chlorophyll a: a field desorption mass spectral study Electron-transfer photooxidation. 3. Detection of radical-ion intermediates in the cyanoaromatic-sensitized photooxidation of trans- and cis-stilbene Initiation of acetylene polymerization by metal carbenes Carbon-13 nuclear magnetic resonance spectroscopy of naturally occurring substances. 68. An unusual solvent dependence of the carbon-13 nuclear magnetic resonance spectral features of some glycosides as studied by relaxation-time measurements Solution characterization of "intermediate-spin" iron(III) porphyrins by NMR spectroscopy A spectrophotometric method for studying the rates of reaction of disulfides with protein thiol groups applied to bovine serum albumin Electron-beam-induced Wolff rearrangement Oxygen-17 NMR studies of carbonic anhydrase The perpendicular conformation of 2-hydroxythiophenol. Intramolecular hydrogen bonding to a specific lone pair The methylmercury heavy atom effect. Phosphorescence polarization and triplet spin sublevel radiative activities of the methylmercury(II)-benzimidazole and methylmercury(II)-tryptophan complexes Mechanisms of photooxygenation. 1. Substituent effects on the [2 + 2] cycloaddition of singlet oxygen to vinyl ethers Effect of A(1,3) strain on the stereochemical course of N-acyliminium ion cyclizations Nucleo- and electrophilicity of (C5H5)2Mn2(CO)4(.mu.-.eta.1-CCH2). New paths to carbyne and allene ligands Photochemical Wagner-Meerwein rearrangement of 2-diphenylmethylenefenchane Analysis and optimization of gas-phase reactions. 13. Silatoluene Paramagnetic organometallic molecules. 9. Metal-metal interaction in X2Co2(CO)6. Analysis of the ESR spectra of [RC2R']Co2(CO)6-.cntdot. Porphyrins. 39. Ammine and nitridoosmium porphyrins. Ligand effects on the electronic structure of osmium octaethylporphyrins Gas-phase nitrosation of benzene. Implications for solution electrophilic aromatic substitution reactions Nucleophilic attacks on carbon-carbon double bonds. 26. Stereoconvergence in nucleophilic vinylic substitution of an activated nitro olefin Photocalorimetric studies of singlet oxygen reactions Molecular structure of 1,8-bis(trimethylelement)naphthalenes Dynamic features of the ethylenediaminetetraacetate complexes of calcium, strontium, barium, and cobalt(II) in aqueous solutions studied by the ultrasonic absorption method Acetylene and ethylene complexes of copper and silver atoms. Matrix isolation ESR study Disproportionation and hydrogen abstraction reactions of trimethylsilyl radicals Stereochemically nonrigid silanes, germanes, and stannanes. 7. Mechanism of metallotropic shifts in fluxional monohaptocyclopentadienyl metal derivatives A convenient synthesis of cyclopentanones via rhodium(I)-catalyzed intramolecular hydroacylation of unsaturated aldehydes Kinetic applications of electron paramagnetic resonance spectroscopy. 35. The search for a dialkylaminyl rearrangement. Ring opening of N-cyclobutyl-N-n-propylaminyl Preferential anion binding to the lactim tautomers of 2-hydroxypyridines Coupling of nonvicinal glycols by low-valent titanium Criteria for establishing the existence of nuclear spin isotope effects Nuclear spin-spin coupling via nonbonded interactions. 1. Conformational and substituent effects on vicinal carbon-13-proton and carbon-13-carbon-13 coupling constants Relative rates and kinetic isotope effects of reactions in solution

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