Nitration of 2,2'-Dinitro-4,4'-biphenyldicarboxylic Acid at High Concentration of Sulfuric and Nitric Acids.pdfVIP
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Nitration of 2,2'-Dinitro-4,4'-biphenyldicarboxylic Acid at High Concentration of Sulfuric and Nitric Acids.pdf
3O卷 6期 结 构 化 学 (JIEGOUHUAXUE) Vbl_3O.No.6
2011.6 Chinese Struct. Chem. 877~881
Nitrationof2,2-Dinitro-4,4-
biphenyldicarboxylicAcidatHigh
ConcentrationofSulfuricandNitricAcids~
、 URui..Fenga~ SHIHe.ringb ZHA rG Tong..Lai。
(CollegeofChemicalEngineering,InnerMongolia
UniversityofTechnology,Hohhot010051,China)
。(CollegeofScience,InnerMongoliaAgriculturalUniversiyt,Hohhot010018,China)
。(StateKeyLaboratoryofExplosionScienceandTechnoloyg,
BeijingInstituteofTechnology,aeijing100081,Chnia)
ABSTRACT Nitrationof4,4-biphenyldicarboxylicacid(BPDC)wasstudiedandanaromatic
carboxylicacidcontainingfournitrogroupswassynthesizedandcharacterizedthroughelemental
analysisandIR spectra.CrystalstructureofTNBPDC (TNBPDC =2,2,6,6-tetranirto-4,4-
biphenyldicarboxylieacid)wasdeterminedbyX--raysingle—crystaldiffraction.Thetitlecompound
(C2oH20,N6014,Mr=600.42)crystallizesintertagonal:,spacergoupI41/awitha=9.8774(1),b=
9.8774(0,.c=25.335(7)A, =2471.7(8)A,Z=4,/9,。=1.613g/cn:1j,F(O00)=1240,p(MoKa)=
0.142mn.~-, =294(2)K,htefnialR=0.0797andwR=0.2177ofr554observedreflectionswith,
20(0.Inthiscrystal,.thereexistanumberofI4.-bondswhichlinkthemoleculestoofmr a
three.·dimensionalinfinitenetworkstructure.Th ehtermaldecompositionofhtetitlecompoundhas
beencarriedoutthroughDSC andTG-DTG analysesataheatingrateof10 *C/rain.Theresults
indicatethatthecompoundhashighheat-r·esisatntstability.
Keywords:energeticcompounds,molecularstructure,,thermalstability
l INTRODUCTION decidedtodecorateBPDC bybringingmorenirto
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