Oxalate nitrate

An oxalate nitrate is a chemical compound or salt that contains oxalate and nitrate anions (NO₃^- and C₂O₄^2-). These are mixed anion compounds. Some have third anions. Oxalate acts as a ligand, which normally complexes two metal atoms.

Naming

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

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

Properties

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

Related

Related to these are the oxalate phosphates and oxalate perchlorates.

List

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]
(μ2-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]
(μ2-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]
(μ2-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; (μ2-4,4'-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]
(μ2-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}2(μ4-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]
(μ2-2,2'-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]

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