Nitrate nitrite

A nitrate nitrite, or nitrite nitrate, is a coordination complex or other chemical compound that contains both nitrite (NO−2) and nitrate (NO−3) anions. They are mixed-anion compounds, and they are mixed-valence compounds. Some have third anions. Many nitrite nitrate compounds are coordination complexes of cobalt. Such a substance was discovered by Wolcott Gibbs and Frederick Genth in 1857.^{[citation needed]}

Production

Mercury(II) nitrate and potassium nitrate in water solution produce the salt tripotassium tetranitratomercurate(II) nitrate K₃[Hg(NO₂)₄]NO₃.^[1]

Properties

On heating, nitrate nitrites lose NO₂ and NO and yield metal oxides.

Related

Other compounds having an element in two different anion states include the sulfate sulfites, the phosphate phosphites, arsenate arsenites and the selenate selenites.

List

name	formula	ratio NO3:NO2	mw	system	space group	unit cell Å	volume	density	properties	references
	[Cr(NH3)5(NO2)] ·(NO3)2									[2]
trans-dinitrotetraamminecobalt(III) nitrate monohydrate	[Co(NO2)2(NH3)4]NO3•H2O	1:2		orthorhombic	P212121	a=10.02, b=6.02, c=16.84, Z=4		1.84		[3]
cis-dinitrotetraamminecobalt(III) nitrate	[Co(NO2)2(NH3)4]NO3	1:2		orthorhombic	P212121	a=12.19, b=7.18, c=10.92, Z=4		1.95		[4]
	[cis-β-Co(trien)(NO2)2]NO3	1:2		monoclinic	P21/n	a = 7.604, b = 13.019, c = 14.472, β = 98.13°, Z = 4	1418.26	1.682	racemate	[5]
	[cis-α-Co(tren)(NO2)2]NO3•13H2O	1:2			P21/c					[6]
	trans-Co[(en2)(NO2)2]NO3	1:2								[7]
	trans-[Co(2,3,2-tet)(NO2)2]NO3	1:2	373.21		P21/n	a=8.490, b=8.884, c=18.580 and β=95.08°;, Z=4	1395.89	1.776		[8]
	trans-[Co(2,3,2-tet)(NO2)2]NO3		373.21		Pn	a=6.493, b=11.731, c=9.325 β=100.13°; M.W.=373.21, Z=2)=	699.21	1.773		[8]
	cis-[Co(Hao)2(NO2)2]NO3 (Hao = 3-amino-3-methyl-2-butanone oxime)			monoclinic	P21/n	a= 8.1 60, b= 17.250, c= 13.745, β= 104.77°				[9]
	[Co(pic)2(NO2)2]NO3.½H2O pic=2-picolylamine									[10]
	cis-[Co(phen)2(NO2)2]NO3 · 2 H2O phen=1,10-phenanthroline									[11]
Sparteine copper(II) nitrate nitrite	Cu(C15H26N2)(NO3)(NO2)	1:1							green	[12]
trans-diammine-cis-dinitratonitronitrosyl ruthenium(II)	RuNO(NH3)2(NO3)2(NO2)
bis(nitrotriamminepalladium(II)) tetraamminepalladium(II) tetranitrate	[Pd(NO2)(NH3)3]2[Pd(NH3)4](NO3)4	4:1	829.20	tetragonal	I42m	a=7.637 c=21.610 Z=2		2.18	bright yellow	[13]
bis(1,10-Phenanthroline)-(nitroso-O)-(nitrato-O,O')-cadmium(ii)	Cd(phen)2(NO3)(NO2)			monoclinic	P21/c	a 6.872 b 9.690 c 20.852 β 93.59°				[14]
catena-((μ2-Nitroso-O,O')-aqua-(nitrato-O,O')-(1,10-phenanthroline)-cadmium(ii))	[Cd(phen)(NO3)(NO2)(H2O)]n			monoclinic	Cc	a 11.703Å b 15.242 c 13.451 β 106.321°				[14]
	[NO2(NH3)2Pt(C5H4NO)2Pt(NH3)2NO2](NO3)2.H2O								yellow	[15]
	K3[Hg(NO2)4]NO3	1:4		orthorhombic	Pnma	a=12.12 b=10.58 c=9.28 Z=4		3.14	pale yellow	[1]
	Pb2(NO2)(NO3)(SeO3)	1:1		orthorhombic	Pmn21	a=5.529, b=10.357, c=6.811, Z=2	390		colourless	[16]
	K2Pb(NO2)3(NO3)	1:3	503.4	orthorhombic	Pbca	a = 6.766, b = 11.999, c = 26.61, Z = 8	2160	3.095	yellow orange	[17]
	[Pb3(OH)4Co(NO2)3](NO3)(NO2)·2H2O	1:4		orthorhombic	Pbca	a = 8.9414, b = 14.5330, c = 24.9383, Z = 8	3240.6