Complex with dihydrogen

THE REACTIVITY OF TRANSITION METAL COMPLEXES WITH DIHYDROGEN... 

I. Alkorta et al., Ab initio study of the structural, energetic, bonding, and IR spectroscopic properties of complexes with dihydrogen bonds. J. Phys. Chem. A 106, 9325-9330 (2002)... 

Triphenylphosphine oxide forms stable 1 1 complexes with alkyl hydroperoxides and a 2 1 crystalline complex with dihydrogen peroxide. Infrared and n.m.r. spectroscopic data is given for each complex formed. ... 

Fig. 19 DFT-optimized geometry changes of the o-bond metathesis of ruthenium(II)-formate complex with dihydrogen molecule. parenf/zeses are relative energies (in kcal/mol DFT) to 3b...

Bismuth tribromide may be prepared by dissolving Bi O in excess concentrated hydrobromic acid. The slurry formed is allowed to dry in air, then gendy heated in a stream of nitrogen to remove water, and finally distilled in a stream of dry nitrogen. Bismuth tribromide is soluble in aqueous solutions of KCl, HCl, KBr, and KI but is decomposed by water to form bismuth oxybromide [7787-57-7] BiOBr. It is soluble in acetone and ether, and practically insoluble in alcohol. It forms complexes with NH and dissolves in hydrobromic acid from which dihydrogen bismuth pentabromide tetrahydrate [66214-38-8] H2BiBr 4H2O, maybe crystallized at —lO C. 

The synthesis procedure consists in removing the ligands from an organometallic complex in the mildest possible conditions and with the minimum of potentially pollutant reactants. The ideal case is the reaction of an olefinic precursor with dihydrogen, which leads to the production of an alkane unable in these conditions to produce strong bonds with the growing metal surface [29]. Precursors of this type are for example Ni(CsHi2)2 [30] and... 

Fig. 2.6 Chiral functionalised NHC complexes as enantioselective hydrogenation catalysts with dihydrogen...

Platinum(II) Complexes with Hydrido and Dihydrogen Ligands 718... 

Another milestone in coordination chemistry dates from 1980, when the first complex containing dihydrogen was reported by G. J. Kubas. ft was found that hydrogen reacts with [W(CO)2(Pchx3)2]... 

As a second example of dihydrogen bonding, let us consider the borohydride anion (BH4-) in complexation with water (as analyzed by Jackson53),... 

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