简介：Fivenewchloranilato-bridgedbinuclearchromium(III)complexeshavebeensynthesizedandidentifiedas[Cr2(CA)L4]-(ClO4)4[Ldenotes5-methyl-1,10-phenanthroline(Me-phen);2,9-dimethyl-1,10-phenanthroline(Me2-phen);5-chloro-1,10-phenanthroline(Cl-phen);diaminoethane(en)or1,3-diaminopropane(pn)],whereCArepresentsthedianionofchloranilicacid.Basedonelementalanalyses,molarconductivityandmagneticmomentofroom-temperaturemeasurements,andIRandelectronicspectralstudies,itisproposedthatthesecomplexeshaveCA-bridgedstructuresandconsistoftwochromium(III)ions,eachinanoctahedralenvironment.Thecomplexes[Cr2(CA)(Me-phen)4](ClO4)4(1)and[Cr2(CA)(Me2-phen)4](ClO4)4(2)werefurthercharacterizedbyvariabletemperature(4.2-300K)magneticsusceptibilitymeasurementsandtheobserveddataweresuccessfullysimulatedbytheequationbasedonthespinHamiltonianoperator,,givingtheexchangeparameterJ=-7.8cm-1for(1)andJ=-6.5cm*1for(2).Thisresult

简介：Threenewcomplexes[Ni(H2L)][Fe(CN)5(NO)]2·6H2O(1),[Ni(H2L)][Fe(CN)5(NO)]2·4H2O(2)and[Cu(H2L)][Fe-(CN)5(NO)]2·4H2O(3)(L=3,10-bis(2-aminoethyl)-1,3,5,8,10,12-hexaazacyotetradecane)arepreparedandcharacter-izedbyIR,elementalanalysesandsingle-crystalX-rayanaly-ses,indicatingthattheyarethefirstexamplesoftrinurlearni-troprnsside-bridgedMFe2(M=CuandHi)complexes.Inthethreecomplexes,thecentralmetalatoms(M)areallsix-coor-dinatedbythenitrogenatomsfromthemacroeyclicligandandtwocyano-bridgesatthetrans-positionstoformdistortedocta-hedralconfigurations.TheaxialN—M—NlinkageisnearlyverticaltotheequatorialplanedefinedbyfourcoordinatingNatomsofmcroeyclicligand.TheC≡N—Nibondangleof172.6°incompleox1isapparentlylargerthanthoseincom-plexes2and3(152.57°and136.37°,respectively).Thethreecomplexesareallconnectedbyhydrogenbondsinto3Dnet-works.Thisstudyshowsthatthecyano-bridgedtrinuclearspeciescouldbegeneratedviathecontrolofthechargeofthebuildingblocks.