An oxalate nitrate is a chemical compound or salt that contains oxalate and nitrate anions (NO3- and C2O42-). These are mixed anion compounds. Some have third anions. Oxalate acts as a ligand, which normally complexes two metal atoms.

Naming

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An oxalate nitrate compound may also be called a nitrate oxalate. In chemical formulae, oxalate may be indicated by "ox". As a ligand oxalate is termed "oxalato", and nitrate, "nitrato".

Production

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Most oxalate nitrates are formed by crystallisation from water solutions. One issue is the insolubility of metal oxalates.

Properties

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On heating, oxalate nitrates lose NO2, NO, CO, and CO2 and form metal carbonates or oxides.

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Related to these are the oxalate phosphates and oxalate perchlorates.

List

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name formula ratio

C2O4:NO3

mw system space group unit cell Å volume density properties references
phen = 1,10-phenanthroline [Cr(phen)2(C2O4)]NO3·H2C2O4·H2O monoclinic Cc a=15.856 b=14.353 c=13.141 β=106.517° Z=4 2867 1.553 orange [1]
bpy = 2,2′-bipyridine [Cr(bpy)2(C2O4)]NO3·1/2H2C2O4·4H2O monoclinic P21/c a=10.5565 b=17.1770 c=14.8525 β=99.272° Z=4 2658.00 1.578 orange [1]
fac-triammin-aquo-oxalato-cobalt(III)-nitrate monohydrate, fac-[Co(NH3)3(C2O4)(H2O)]NO3·H2O monoclinic P21/n a=7.853 b=10.000 c=13.192 β=105.06° [2]
[Co(NH3)4(C2O4)]NO3·H2O P212121 a=7.944 b=9.90 c=12.700 Z=4 999.15 1.968
Oxalato di(1,10-phenanthroline-N,N′) cobalt(III) nitrate 3.88 hydrate [Co(C12H8N2)2(C2O4)]NO3·3.88H2O 639.14 orthorhombic Ibca a = 15.492 b = 17.938 c = 19.635 Z = 8 5457 1.556 pink [3]
ept = N-(2-aminoethyl)-1,3-diaminopropane [(Ni(ept)H2O)2ox](NO3)2 [4]
Ni2en4(C2O4)(NO3)2 [5]
bpy = 2,2′-bipyridine [{Ni(bpy)2}2(μ-C2O4)](NO3)2·H2C2O4 1044.23 triclinic P1 a 9.2921 b 12.8702 c 18.9812 α 84.660° β 75.969° γ 85.056° Z=2 2187.9 1.585 violet [6]
m-xpt = bis(pyridyltriazole) ligand [Ni2(m-xpt)2(C2O4)](NO3)2 [7]
dien = diethylenetriamine (H3dien)[Ni(NO3)(C2O4)2].2H2O monoclinic P21/c a=10.218 b=11.074 c=14.897 β=103.988° blue [8]
bpt = pyridyltriazole ligand Cu2(bpt)2(NO3)2(DMF)2(C2O4) [7]
[(Cu(ept))2ox](NO3)2·H2O [4]
Diethylenetriammonium nitrato-bis(oxalato)cuprate (II) dihydrate (H3dien)[Cu(NO3)(C2O4)2].2H2O monoclinic P21/c a = 10.1054 b = 11.0825 c = 14.8238 β = 103.516° Z = 4 1614.2 [9]
dien=diethylenetriamine [Cu2(C2O4)(dien)2](NO3)3 monoclinic P2/c a = 23.7888(10), b = 6.7055(3), c = 12.7842(6) and β = 95.534 [10]
Sparteine copper(II) nitrate oxalate Cu2(C15H26N2)2(NO3)2(C2O4) 1:2 light green [11]
di-2-pyridylamine Cu2(dpyam)2(μ-C2O4)(NO3)2(DMF)2 triclinic P1 a=8.353 b=9.100 c=12.245 α=72.035° β=75.228° γ=78.552° [12]
2-oxalato)-bis(di-2-pyridylamine)-bis(N,N',-dimethylformamide)-di-copper(ii) iodide nitrate [Cu2(dpyam)2(μ-C2O4)(DMF)2](I)1.6(NO3)0.4 triclinic P1 a=8.4616 b=8.9112 c=12.3824 α=71.913° β=76.329° γ=80.225° [13]
Cu2(dpyam)2(C2O4)(NO3)2((CH3)2SO)2] [14]
Cu2(bpy)2(C2O4)(NO3)2(H2O)2 [14]
meprizole=(4-methoxy-2-(5-methoxy-3-methylo-pyrazol-1-yl)-6-methylpyrmadine) [Cu2(mepirizole)2(C2O4)(NO3)2(H2O)]2[Cu2(mepirizole)2(C2O4)(NO3)2] monoclinic P21/c a=20.073 b=13.842 c=11.451 β=119.09° Z=4 [15]
Cu2(histamine)2(C2O4)(H2O)2(NO3)2 triclinic P1 a=7.579 b=8.133 c=9.161 α=77.06° β=89.23° γ=82.54° Z=1 545.6 [16]
[Cu2(bpy)2(C2O4)(H2O)2][Cu(bpy)(C2O4)](NO3)2 [17]
trimeen = N,N,N'-trimethylethylenediamine [(Cu(trimeen)H2O)2ox](NO3)2 ·2H2O [18]
Pz2CPh2 = diphenyldipyrazolylmethane Cu2(Pz2CPh2)2(NO3)2(μ-C2O4) triclinic P1 a = 8.863 b = 10.241 c = 11.43 α = 98.98° β = 110.45° γ = 103.66° Z=2 [19]
Pz3m2CPh2 = diphenylbis(3-methylpyrazolyl)methane [Cu2(Pz3m2CPh2)2(H2O)2(μ-C2O4)](NO3)2·H2O monoclinic C2/c a = 23.459 b = 8.8568 c = 21.782 β = 100.889° Z=4 [19]
phen = 1,10-phenanthroline; (μ2-Oxalato-O,O',O'',O''')-diaqua-bis(1,10-phenanthroline)-di-copper(ii) dinitrate [Cu2(ox)(phen)2(H2O)2](NO3)2 monoclinic P21/n a=7.128 b=11.715 c=16.529 β=91.80° [20]
4,4’-bipyridine; 1,10-phenanthroline; [Cu2(ox)(4,4’-bpy)(phen)2](NO3)2 855.72 monoclinic C2/c a=23.144 b=10.6601 c=13.4363 β=93.123° Z=4 3310.4 green [21]
Bipy = 2,2′-bipyridine; Cu2(Bipy)2(H2O)2(C2O4)(NO3)2 [22]
μ-oxalato-κ4O1,O2:O1′,O2′-bis(aqua(nitrato-κO){[1-(2-pyridyl-κN)ethylidene]hydrazine-κN}copper(II)) μ-oxalato-κ4O1,O2:O1′,O2′-bis((methanol-κO)(nitrato-κO){[1-(2-pyridyl-κN)ethylidene]hydrazine-κN}copper(II)) [Cu2(C2O4)(NO3)2(C7H9N3)2(H2O)2][Cu2(C2O4)(NO3)2(C7H9N3)2(CH4O)2] triclinic P1 a = 9.8358 b = 12.377 c = 12.714 α = 103.704° β = 112.573° γ = 107.821° Z = 1 1245.15 [23]
2-oxalato)-bis(dimethylsulfoxido)-bis(di-2-pyridylamine)-dinitrato-di-copper(ii) [Cu2(dpyam)2(C2O4)(NO3)2((CH3)2SO)2 triclinic P1 a 8.7190 b 8.9680 c 11.421 α 68.58° β 77.79° γ 80.58° [24]
2-Oxalato-O,O',O'',O''')-diaqua-bis(2,3-bis(2-pyridyl)pyrazine)-di-copper(ii) dinitrate tetrahydrate [Cu2(dpp)2(H2O)2(NO3)2(ox)]·4H2O monoclinic P21/c a=9.704b=7.2598 c=25.865 β=97.395° [25]
L=4,4′-methylenebis(1-(2-pyridyl)-3,5-dimethylpyrazole;

2-4,4'-Methylenebis(1-(2-pyridyl)-3,5-dimethylpyrazole))-bis(nitrato-O)-di-copper acetonitrile solvate

CuL(C2O4)(NO3) monoclinic P2/n a=8.5679 b=9.3862 c=20.5910 β=101.038° [26]
bis(μ2-oxalato)-tetrakis(2,2'-bipyridine)-(oxalato)-di-copper(ii)-chromium(iii) nitrate monohydrate [{Cu(μ-C2O4)(bpy)2}2Cr(C2O4)]NO3·H2O monoclinic C2/c a=6.428 b=17.162 c=16.749 β=110.721° [27]
bis(tris(2,2'-bipyridine)-copper(ii)) tris(oxalato)-chromium(iii) nitrate nonahydrate [Cu(bpy)3]2[Cr(C2O4)3]NO3·9H2O monoclinic P21/c a=31.314 b=13.536 c=22.202 β=132.01° [27]
2-Oxalato)-tetrakis(μ2-N,N'-propane-1,3-bis(3-methoxysalicylideneiminato))-diaqua-bis(nitrato-O)-tetra-copper(ii)-di-neodymium(iii) dinitrate hexahydrate [{(LCuII(ONO2))(LCuII(H2O))NdIII}2(μ-C2O4)](NO3)2 · 6H2O monoclinic P21 a=16.982 b=15.241 c=17.368 β=96.71° [28]
(H3O,N2H5)5{[Ce(H2O)][Ce(NO3)]2(C2O4)6}.6H2O tetragonal P43212 a=11.6521 c=27.9597 [29]
(H3O,N2H5)2{Nd(C2O4)2NO3} monoclinic P21/c a=9.296 b=17.214 c=9.214 β=116.586 [29]
(H3O,N2H5)2(NO3)2{Eu2(H2O)6(C2O4)3} monoclinic P21/n a=8.0806 b=18.986 c=17.318 β=99.331° [29]
melaminium [C3H7N6]6[Dy(C2O4)4][NO3] triclinic P1 a=9.777 b=10.676 c=25.083 α=97.18° β=79.81° γ=86.52° 2570 [30]
melaminium [C3H7N6]6[Ho(C2O4)4][NO3] triclinic P1 a=9.760 b=10.660 c=25.051 α=87.24° β=87.24° γ=79.96° 2559 [30]
(N2H5){Er(C2O4)2}.2H2O tetragonal P43212 a=11.3348 c=9.2646
melaminium [C3H7N6]6[Yb(C2O4)4][NO3] triclinic P1 a=9.7297 b=10.5937 c=24.9904 α=87.271° β=80.123° γ=86.955° 2532.15 [30]
lead nitrate oxalate Pb2(NO3)2(C2O4)⋅2H2O monoclinic P21/c a=10.623 b=7.9559 c=6.1932 β=104.49° Z=4 [31][32]
(OPb2)2(C2O4)(NO3)2 monoclinic P21/c a=11.8682 b=5.2501 c=9.0989 β=96.741° [33]
μ-Oxalato-κ4O1,O2:O1′,O2′-bis[aqua(2,2′-bipyridine-κN)(nitrato-κ2O,O′)lead(II)] Pb2(C2O4)(NO3)2(C10H8N2)2(H2O)2 monoclinic P21/c a=9.579 b=20.633 c=6.765 β=91.687° Z=2 1336.5 [34]
bipy = 2,2′-bipyridine; (μ2-oxalato)-bis(2,2'-bipyridine)-dinitrato-diaqua-di-lead Pb2(ox)(bipy)2(NO3)2(H2O)2 monoclinic P21/c a=9.5444 b=20.5956 c=6.7449 β=91.819° [35]
phen = 1,10-phenanthroline {Pb(phen)2}2Cr(ox)2(phen)][Cr(ox)2(phen)](NO3)2 triclinic P1 a 13.311 b 18.861 c 19.500 α 115.14° β 107.54° γ 96.28° [36]
AgPb(C2O4)(NO3) heat decompose to Ag and PbCO3 [37]
tetraethyldiglycolamide [Th(TEDGA)2(C2O4)][NO3]2[H2C2O4].6H2O 1128.86 tetragonal P42212 a=18.714 c=12.9212 Z=4 4525.2 1.657 @100K Th is 10 coordinate [38]
tetraethyldiglycolamide [Th2(C2O4)3(TEDGA)4][NO3][HC2O4][H2C2O4]4.7H2O 2340.47 triclinic P1 a=15.6611 b=17.9082 c=18.1814 α=89.896° β=65.549° γ=87.623° Z=2 4637.2 1.676 @100K is 10 coordinate, bicapped square antiprism [38]
diammonium oxalatotetranitratouranylate (NH4)2[{UO2(NO3)2}24-C2O4)] · 2H2O 1:4 monoclinic P21/c a = 8.650 b = 11.700 c = 20.213 β = 93.92° Z = 4 2040.9 [39]
Aqua-(2,2'-bipyridine)-bis(nitrato)-(μ2-oxalato)-dioxo-uranium(vi)-copper(ii) UO2Cu(C2O4)(NO3)2(bipy)(H2O) triclinic P1 a 7.7582 b 11.0274 c 12.181 α 66.717° β 85.541° γ 87.653° [40]
2-2,2'-bipyrimidine)-bis(μ2-oxalato)-bis(μ2-hydroxo)-tetraoxo-bis(nitrato)-di-copper-di-uranium [(UO2)2Cu2(C2O4)2(bipym)3(OH)2]·2NO3 triclinic P1 a 9.9169 b 10.9294 c 11.1783 α 103.449° β 110.754° γ 110.069° [40]
[C6H14N]4[UO2(C2O4)2(HC2O4)]NO3·2H2O 1033.86 monoclinic P21/c a=11.9358 b=18.7279 c=19.1956 β=102.210° Z=4 4193.8 1.637 [41]
[C8H18N][UO2(C2O4)(NO3)] monoclinic P21/c a=11.3688 b=11.0238 c=13.4478 β=11.465° Z=4 1557.5 2.338 [41]

References

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