Physical and Analytical Studies of Organoboranes

The heat of formation of 2,8,9-trioxa-5-aza-l-boratricyclo[3,3,3,0 ]undecane in the gas phase has been determined (191.5 0.4 kcalmol- ) as has the bond energy of the N B dative bond. A study describing the recrystallization of triarylboranes has appeared as has a report concerning the solvent isotope effect on the rate of methoxyl exchange between methyl borate and methanol. 2-[l-(o-dihydroxyborylphenyl)-2-phenylethyl]-2-imidazoline has been used for the selective determination of tartaric acid in aqueous solution and the absorption and emission properties of a series of phenyl-substituted dimesityl-boranes have been described. Synchronous spin- and stereo-isomerization of the complex cw-Fe(phen) a(NCBPh 3) 2 have been reported, The kinetics and mechanism of the protodeboronation of ferroceneboronic acid in moderately concentrated HaSO have been studied.  

Substituted benzeneboronic acids have been evaluated for the gas chromatographic determination of bifunctional compounds (e.g. pinacol, propane-1,3-diamine, butane-l,4-diol). Phenylboronic and diphenylborinic acid have 

Cyclic voltammetry studies of borabenzene cobalt complexes, (borinato)-cyclopentadienyliron, and bis(borinato) complexes of iron, chromium, and vanadium have appeared. The electrochemical behaviour and e.s.r. spectroscopy of heterocyclic organoboron compounds (60) have been studied.  

Microwave studies have been published for the molecules MeBS, PhBCl 2, MesNBMea, BFaCO, and EtBFg. Vibrational spectroscopy has been used to study EtBFa, B(C2F3)s, MeBFa, B-trimethylborazine, and the triphenylboron complexes of benzyl, butyl, and isobutyl amines.  

Gas phase electron diffraction studies have been used to determine the molecular structures of several tervalent boron compounds.  

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