Restricted accessResearch articleFirst published online 2012-10
Mass Spectrometric Studies of Silver Complexes with a Pyridine Dicarboxamide Ligand: Interconversion of Ag(I) and Ag(III) Oxidation States in the Gas Phase
Electrospray ionization (ESI) enables the detection of highly unstable silver(III) complexes prepared in situ from the dicarboxamide ligand L (where L = N,N′-bis(2,6-diisopropylphenyl)-2,6-pyridinedicarboxamide) and Ag(CH3COO). The collision-induced dissociation of [AgIII(L–H)(CH3COO)]+ leads to the elimination of oxiranone. As well as the silver(III) complexes, various other silver(I) complexes generated in the positive as well as negative ionization mode were investigated.
LevasonW. and SpicerM.D., “The chemistry of copper and silver in their higher oxidation states”, Coord. Chem. Rev.76, 45 (1987). doi: 10.1016/0010-8545(87)85002–6
2.
BandopadhyayP.DharB.B.BhattacharyyaJ. and MukhopadhyayS., “Kinetics of oxidation of azide by [ethylene bis(biguanide)]silver(III) in aqueous acidic media”, Eur. J. Inorg. Chem.4308 (2003) and references therein. doi: 10.1002/ejic.200300300
3.
TegginamathV.HiremathC.V. and NandibewoorS.T., “Kinetics and mechanism of uncatalyzed and ruthenium(III) catalyzed oxidation of allyl alcohol by diperiodatoargentate(III) in aqueous alkaline medium”, J. Phys. Org. Chem.20, 55 (2007). doi: 10.1002/poc.1126
4.
KirschenbaumL.J.AmbrusJ.H. and AtkinsonG., “Kinetics of silver(III) complexation by periodate and tellurate ions”, Inorg. Chem.12, 2832 (1973). doi: 10.1021/ic50130a018
5.
MolodeS.J.ShettiN.P. and NandibewoorS.T., “Os(VIII)/Ru(III) catalyzed oxidation of L-valine by Ag(III) periodate complex in aqueous alkaline medium: A comparative kinetic study”, Catal. Lett.141, 1526 (2011). doi: 10.1007/s10562-011-0623-1
6.
DirkseT.P. and WiresB., “Closure to ‘discussion of’ the stability and solubility of AgO in alkaline solutions”, J. Electrochem. Soc.106, 284 (1959). doi: 10.1149/1.2427331
7.
StandkeB. and JansenM., “Ag3O4, the first silver(II,III) oxides”, Angew. Chem. Int. Ed.25, 77 (1986). doi: 10.1002/anie.198600771
8.
StandkeB. and JansenM., “Ag2O3, a novel binary oxide”, Angew. Chem. Int. Ed.24, 118 (1985). doi: 10.1002/anie.198501181
9.
RushJ.D. and KirschenbaumL.J., “Complexes of silver(III) with oxyanions”, Polyhedron4, 1573 (1985). doi: 10.1016/S0277–5387(00)87230–7
10.
McMillanJ.A., “Higher oxidation states of silver”, Chem. Rev.62, 65 (1962). doi: 10.1021/cr60215a004
11.
FuhrhopJ.H.KadishK.M. and DavisD.G., “Redox behavior of metallo octaethylporhyrins”, J. Am. Chem. Soc.95, 5140 (1973). doi: 10.1021/ja00797a008
12.
MuckeyM.A.SzczepuraL.F.FerrenceG.M. and LashT.D., “Silver(III) carboporphyrins: The first organometallic complexes of true carbaporphyrins”, Inorg. Chem.41, 4840 (2002). doi: 10.1021/ic020285b
BarefieldE.K. and MocellaM.T., “Complexes of silver(II) and silver(III) with macrocyclic tetraaza ligands”, Inorg. Chem.12, 2829 (1973). doi: 10.1021/ic50130a017
15.
PesaventoM.ProfumoA.SoldiT. and FabbrizziL., “Formation of a trivalent silver tetraaza macrocyclic complex in aqueous solution: Hydrolytic tendencies and interaction with the sulfate ion”, Inorg. Chem.24, 3873 (1985). doi: 10.1021/ic00217a033
16.
RayP., “A new type of complex silver compound with tervalent silver”, Nature151, 643 (1943). doi: 10.1038/151643a0
17.
DasA. and MukhopadhyayS., “Kinetics of oxidation of glyoxylic acid by [ethylene bis(biguanide)]silver(III) in aqueous media”Polyhedron23, 895 (2004). doi: 10.1016/j.poly.2003.12.006
18.
WarrenL.F. and BennettM.A., “Stabilization of high formal oxidation states of the first-row transition metal series by o-phenylenebis(dimethylphosphine)”, J. Am. Chem. Soc.96, 3340 (1974). doi: 10.1021/ja00817a065
19.
KirschenbaumL.J.PandaR.K.BorishE.T. and MentastiE., “Vicinal-dioximate complexes of silver(III)”, Inorg. Chem.28, 3623 (1989). doi: 10.1021/ic00318a003
20.
KirschenbaumL.J. and RushD.J., “Polypeptide complexes of silver(III)”, J. Am. Chem. Soc.106, 1003 (1984). doi: 10.1021/ja00316a032
21.
DonoghueP.J.TehranchiJ.CramerC.J.SarangiR.SolomonE.I. and TolmanW.B., “Rapid C–H bond activation by a monocopper(III)-hydroxide complex”, J. Am. Chem. Soc.133, 17602 (2011). doi: 10.1021/ja207882h
22.
RowlandJ.M.OlmsteadM.M. and MascharakP.K., “Unusual reactivity of methylene group adjacent to pyridine-2-carboxamido moiety in iron(III) and cobalt(III) complexes”, Inorg. Chem.41, 2754 (2002). doi: 10.1021/ic011197e
23.
GhoshK.Eroy-RevelesA.A.AvilaB.HolmanT.R.OlmsteadM.M. and MascharakP.K., “Reactions of NO with Mn(II) and Mn(III) centers coordinated to carboxamido nitrogen: Synthesis of a manganese nitrosyl with photo-labile NO”, Inorg. Chem.43, 2988 (2004). doi: 10.1021/ic030331n
24.
TintaruA.RoithovaJ.SchroderD.CharlesL.JusinskiI.GlasovacZ. and Eckert-MaksicM., “Generation and dissociation pathways of singly and doubly protonated bisguanidines in the gas phase”, J. Phys. Chem. A112, 12097 (2008). doi: 10.1021/jp805897f
25.
WasilkeJ.-C.WuG.BuX.KehrG. and ErkerG., “Ruthenium carbene complexes featuring a tridentate pincer-type ligand”, Organometallics24, 4289 (2005). doi: 10.1021/om0501780
ReveszA.MilkoP.ZabkaJ.SchroderD. and RoithovaJ., “Reduction from copper(II) to copper(I) upon collisional activation of (pyridine)2CuCl+”, J. Mass Spectrom.45, 1246 (2010). doi: 10.1002/jms.1793
28.
ZinsE.L.PepeC. and SchroderD., “Energy-dependent dissociation of benzylpyridinium ions in an ion-trap mass spectrometer”, J. Mass Spectrom.45, 1253 (2010). doi: 10.1002/jms.1847
