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issue	17
is Is Part Of of	The microwave spectrum, structure, and internal motion of the cyclopropane-water complex Experimental evidence by EXAFS of the second hydration shell in dilute solutions of chromium(III) ion A rational synthesis of organometallic bridging sulfur dimers and their conversion into homo- and heterometallic cubane complexes. Evidence for a mechanism involving dimerization of doubly unsaturated dinuclear intermediates Photoinduced electron transfer in multimetal complexes. Observations on electronically forbidden back electron transfers Haloalkanes as ligands. Spectroscopic and energetic studies of CpMn(CO)2XR Theoretical studies of heteroatom-directed carbometalation. Addition of methylcopper, dimethylcopper anion, and methyllithium to substituted acetylenes Addition and cycloaddition reactions of the chiral and highly nucleophilic alkynyl manganese complex [(.eta.5-C5H4Me)(CO)(PPh3)MnC.tplbond.CMe]- Relationships in the rotational barriers of all Group 14 ethane congeners H3X-YH3 (X, Y = C, Si, Ge, Sn, Pb). Comparisons of ab initio pseudopotential and all-electron results The ab initio calculations on the lower excited states of short-chain polyenals Synthesis, experimental, and ab initio theoretical vibrational circular dichroism, and absolute configurations of substituted oxiranes Tetraphenylbutadiene disodium dimethoxyethane: solvent-shared and solvent-separated ion triples within a single crystal Enantiospecific total synthesis of the ajmaline related alkaloids (-)-suaveoline, (-)-raumacline, and (-)-Nb-methylraumacline Push-pull porphyrins as nonlinear optical materials Contribution of physical blocking and electronic effect to establishment of strong metal-support interaction in rhodium/titanium dioxide catalysts Comparison of gas-phase proton and ammonium ion affinities of crown ethers and related acyclic analogs Simulation of the solvation free energies for methane, ethane, and propane and corresponding amino acid dipeptides: a critical test of the bond-PMF correction, a new set of hydrocarbon parameters, and the gas phase-water hydrophobicity scale Structural modeling of small molecules by NMR: solution-state structure of 12,13-diepimeric coenzyme F430 and comparison with the x-ray structure of the pentamethyl ester derivative Sub-picosecond .DELTA.S = 2 intersystem crossing in low-spin ferrous complexes Studies of complex enzymic pyridine nucleotide-dependent transformations: structure and cofactor binding correlation in CDP-D-glucose oxidoreductase The question of metal-metal bonding in edge-sharing bioctahedral molybdenum(III) complexes. Variable temperature proton NMR study of Mo2Cl6(PMexEt3-x)4 (x = 0-3) and the mechanism of the face-sharing to edge-sharing transformation Molecular shape dependent model of self-diffusion in, and the viscosity of, large molecule liquid systems. 2. Viscosity, temperature, and pressure relationships for model liquid hydrocarbons The puckering inversion barrier and vibrational spectrum of cyclopentene. A scaled quantum mechanical force field algorithm Luminescent ligand-to-metal charge-transfer excited states based on pentamethylcyclopentadienyl complexes of tantalum Triplet photochemistry of acyl and imino cyclopropenes. 164. A rearrangement to afford furans and pyrroles: reaction and mechanisms Mechanistic study of the rhodium(I)-catalyzed hydroboration reaction Arylsilsesquioxane gels and related materials. New hybrids of organic and inorganic networks Fluorine-19 NMR evidence for restricted rotation of the retinyl chromophore in doubly labeled visual pigment analogs 1,2,3,4-Tetramethyl-5-(trifluoromethyl)cyclopentadienide: a unique ligand with the steric properties of pentamethylcyclopentadienide and the electronic properties of cyclopentadienide Rhodium(I)- and iridium(I)-catalyzed hydroboration reactions: scope and synthetic applications Chemistry of organosilicon compounds. 292. An NMR study of the formation of silyloxonium ions by using tetrakis[3,5-bis(trifluoromethyl)phenyl]borate as counteranion The S32+ dication: the first 16-valence-electron triatomic with an equilateral triangle triplet ground state? Theoretical study on mechanism and selectivity of electrophilic aromatic nitration Electron transfer and bond breaking. Examples of passage from a sequential to a concerted mechanism in the electrochemical reductive cleavage of arylmethyl halides New synthesis of methano-bridged annulenes: access to highly substituted derivatives Response of the double-layer capacitance of a high-temperature superconductor/fluid electrolyte interface to the onset of superconductivity Organometallic nitrosyl chemistry. 52. A unique .mu.-.eta.1:.eta.2-NO ligand in a bimetallic alkylidene nitrosyl complex of molybdenum Use of intermolecular hydrogen bonding for the induction of liquid crystallinity in the side chain of polysiloxanes One-electron activation and coupling of ethene by rhodium(II) porphyrins: observation of an .eta.2-ethene-metalloradical complex Electrochemical probes of protein folding Bicyclo[2.2.2]octane-capped porphyrins. 1. Synthesis, characterization, and solution three-dimensional structure Carbon-13 NMR study of acetylene cyclotrimerization on platinum/alumina catalysts Book Reviews Chiral siderophore analogs: enterobactin The mechanism of the zirconium-catalyzed carbomagnesiation reaction. Efficient and selective catalytic carbomagnesiation with higher alkyls of magnesium Intracluster ion-molecule reactions within ethylene-methanol heteroclusters Flavin-6-carboxylic acids as novel and simple flavoenzyme models. Nonenzymatic stabilization of the flavin semiquinone radical and the 4a-hydroperoxyflavin by intramolecular hydrogen bonding Acylation reactions mediated by tantalum carboxylates Isomerization of (.pi.-allyl)palladium complexes via nucleophilic displacement by palladium(0). A common mechanism in palladium(0)-catalyzed allylic substitution Solution conformation of a G.cntdot.TA [guanosine.cntdot.thymidine-5'-adenylic acid] triple in an intramolecular pyrimidine.cntdot.purine.cntdot.pyrimidine DNA triplex Masthead Tripodal peptides with chiral conformations stabilized by interstrand hydrogen bonds Recognition of axial ligands by a zinc porphyrin host on the basis of nonpolar interligand interaction Is 2,3,5,6-tetrakis(methylene)bicyclo[2.2.0]hexane the product of photolyzing 7-oxa[2.2.1]hericene? Driving-force effects on the rates of bimolecular electron-transfer reactions Lariat-type B12 model complexes. 1. New pendant methylpyridyl Costa-type organocobalt complexes provide insight into the role of the axial ligand in butterfly bending and redox properties Solid-state NMR studies of the molecular motion in the kaolinite: DMSO intercalate Measurement of long-range 13C-13C J couplings in a 20-kDa protein-peptide complex A broad-substrate analog reaction system of the molybdenum oxotransferases Synthesis and characterization of a diplatinum(III)-tetrakis(.alpha.-dioximato) complex containing an unsupported metal-metal bond Proton shifts in gaseous arenium ions and their role in the gas-phase aromatic substitution by free Me3C+ and Me3Si+ [tert-butyl and trimethylsilyl] cations Mixed-valence lanthanum titanium (III/IV) oxosilicate La4Ti9Si4O30. A novel perrierite-related compound, La4Ti(Si2O7)2(TiO2)4m (m = 2), with a quasi-two-dimensional rutile-based structure Polymorphism in the heavier analogs of the ethyl cation Selective examination of heme protein azide ligand-distal globin interactions by vibrational circular dichroism Rhodium geminal dicarbonyl on TiO2(110) Rapid detection of iron-57 NMR chemical shifts of model hemes: an approximate correlation between iron-57 and phosphorus-31 chemical shifts of iron(II) porphyrins bound to phosphine axial ligands Organic photochemistry. 97. Antenna-initiated photochemistry in polyfunctional steroids. Photoepimerization of 3.alpha.-(dimethylphenylsiloxy)-5.alpha.-androstane-6,17-dione and its 3.beta. isomer by through-bond exchange energy transfer Adsorption and decomposition of acetylene on silicon(100)-(2.times.1) Receptor for a phosphonic acid monoester: salt formation stabilized by three hydrogen-bonding interactions

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