Article on calculations predicting a large inverse H/D kinetic isotope effect on the rate of tunneling in the ring opening of cyclopropylcarbinyl radical.

Article on a proposed experimental test of the prediction of a triplet ground state for (CO)4.

Article discussing unusual electronic features and reactivity of the dipyridylazaallyl ligand and characterizations of (smif)2M [M = Fe, Co, Co+, Ni; smif = {(2-py)CH}2N and [(TMS)2NFe] 2(smif)2.

Article discussing the redox activation of alkene ligands in platinum complexes with non-innocent ligands.

Article discussing research on arylpalladium phosphonate complexes as reactive intermediates in phosphorus-carbon bond forming reactions.

Article discussing a computational study of coinage metal-ethylene complexes supported by tris(pyrazolyl)borates.

This article discusses six-, five-, and four-coordinate ruthenium(II) hydride complexes.

This article discusses group-transfer reactions of nickel-carbene and -nitrene complexes with organoazides and nitrous oxide that form new C=N, C=O, and N=N bonds.

Article discussing research on cobalt-dinitrogen complexes with weakened N-N bonds.

Article on a comparison of density functional theory with single- and multireference correlation consistent composite approaches (ccCA).

This article discusses the enthalpy of formation of the cyclohexadienyl radical and the C-H bond enthalpy of 1,4-cyclohexadiene.

Article discussing the performance of density functional theory for 3d transition metal-containing complexes and the utilization of the correlation consistent basis sets.

Article describing the discovery of platinum in Russia and the history of ruthenium. Tourist information regarding sites pertinent to this history are included.

Front cover of the Summer 2009 issue of The Hexagon, featuring a statue of Copernicus sitting on a block, wearing a flowing robe, and holding a compass up to a heliocentric model. The next page contains a table of contents, a staff list, and an editorial regarding the twentieth anniversary of the events at Tiananmen Square.

Article describing the history of iodine, including its discovery by Bernard Courtois while during the production of saltpeter. Tourist information regarding pertinent locations is included.

Article describing the history of the platinum metals, from its discovery in the New World and subsequent experiments in Europe. Tourist information is provided regarding areas pertinent to the history of platinum.

Front cover of volume 100, issue 1 of The Hexagon, featuring the multistory brick and stone church, Nikolaikirche. The church's first several floors are comprised of older stone work while the upper stories use newer red brick. People and vehicles are on the street near the church, and a row of buildings can be seen in the background to the left. The magazine's logo is printed over the church's bluish roof spires. The inside cover contains a table of contents, staff credits, and an editorial.

Front cover of the Winter 2009 issue of The Hexagon, featuring a man in a Berlin shirt riding a bicycle laden with large pretzels. A small dog on a leash follows alongside of him. The inside cover has a table of contents, a list of staff, and an editorial.

Article discussing research on the correlation and prediction of solute transfer to chloroalkanes from both water and the gas phase.

This article discusses the development of Abraham model correlations for solvation characteristics of linear alcohols.

Article on the solubility of 5-(2-chlorophenyl)-7-nitro-1, 3-dihydro-1, 4-benzodiazepin-2-one, 7-chloro-1-methyl-5-phenyl-3H-1, 4-benzodiazepin-2-one, and 6-(2,3-dichlorophenyl)-1, 2, 4,-triazine-3, 5-diamine in the mixtures of poly(ethylene glycol) 600, ethanol, and water at temperature of 298.2 K.

This article discusses partition coefficients of organic compounds in new imidazolium and tetralkylammonium based ionic liquids using inverse gas chromatography.

Article on 7-chloro-2-methylamino-5-phenyl-3H-1, 4-benzodiazepine-4-oxide, 7-chloro-1, 3-dihydro-1-methyl-5-phenyl-2H-1, 4-benzodiazepin-2-one, and 7-chloro-5-(2-chlorophenyl)-3-hydroxy-1, 3-dihydro-1, 4-benzodiazepin-2-one in (propane-1, 2-diol + water) at a temperature of 303.2 K.

Article on the effects of different concentrations of poly(vinyl pyrrolidone) on the solubility of lamotrigine and diazepam in ethanol and water mixtures at 298.2 K.