化工英文文献翻译
ThesynthesisofH2tsalamoisshowninScheme1.The
reactionofthethiosalicylaldehyde5b,12,13with1,2-bis(aminooxy)
ethane14affordedtheH2tsalamoin47%yieldascolorless
crystals.15H2tsalamoisremarkablystablebothinthesolid
stateandinsolution.The1HNMRspectrumofH2tsalamo
inCDCl3wasnotchangedevenafterseveraldays.15Thus,theoximeligandH2tsalamoismuchmorestablethanH2-
tsalen.However,H2tsalamoinhighlydilutedsolution
decomposedveryslowlyunderaerobicconditionsprobably
duetoautoxidation.Thus,H2tsalamoislessstablethanH2-
salamo.
H2tsalamoreactedwithnickel(II)acetateindichloromethane/
methanoltoaffordthecorrespondingnickel(II)
complexasdarkbrowncrystalsin67%yield.Elemental
analysisisconsistentwiththeformulaofthemononuclear
complex[Ni(tsalamo)].16Apeakatm/z)387.98[Ni-
(tsalamo)]+intheESI-massspectrum(FiguresS1andS2,
SupportingInformation)alsosupportsthemononuclear
structure.Furthermore,inthe1HNMRspectrumofthe
nickel(II)complexinCDCl3sixsharpsignalsappeared,
indicatingtheexclusiveformationofasymmetricaland
diamagneticcomplex.Intheelectronicabsorptionspectra,
d-dtransitionwasobservedat620nm()260)andan
LMCTbandwasobservedat382nm()6000)(Figure
1),whicharecharacteristicoflow-spinsquareplanarnickel-
(II)complexeswithN2S2coordinationspheres.17Thissimple
andeasypreparationofthemetalcomplexwithanN2S2
chelatecontrastswiththelaborioussynthesisusingthe
correspondingimineanalogueH2tsalen.4,6-10